how to hide the vertical scrollbar of listbox

Windows Forms General

- Previous
  - 1
    - Splitter Distance Error Hi there, I am getting a strange error with my SplitContainer when trying to manually set the SplitterDistance value. The SplitContainer.Orientation is set to Orientation.Horizontal, the SplitContainer.Panel1MinSize is set to 25, the SplitContainer.Width is set to 150, and the SplitContainer.Panel2MinSize is set to 25. When I try to set the SplitContainer.SplitterDistance value to 100, I get an error saying "SplitterDistance must be between Panel1MinSize and Width - Panel2MinSize". However, I am doing just that. Any ideas why I am getting this error message The exception message is of type InvalidOperationException. According to my MSDN this exception means "The value is incompatiable with the orientation". However, MSDN specfically states that SplitterDistance is valid for use with both the Orientation.Horizontal and Orientation.Vertical values. Also, I should note that I only get this error message when I try to manually set the SplitterDistance value after having added the SplitContainer to another Control. If I set the SplitterDistance value before adding the SplitContainer to the parent Control, I don't get the error message. However, the SplitterDistance value doesn't actually change either. Any help would be appreciated. Thank you Tag: Windows Forms General how to hide the vertical scrollbar of listbox Windows Forms
  - 2
    - problem with datagrid hi! in my datagrid there are multiple records that needed to be inserted to my database. my problem is that it would be inserted to only one row and it would depend on the id. for example: - the datagrid will have 3 columns (student id, subject, grade) the rows will be (2006-01, Math, 88), (2006-01, English, 87). - the database has 5 columns (student id, math, english, science, history) -- i need to insert the grade in their corresponding columns based on student id. how could i do this i am using vb.net2003 i'm really confused right now and any help is appreciated.. Tag: Windows Forms General how to hide the vertical scrollbar of listbox Windows Forms
  - 3
    - why my progressbar doesn't work in thread? my code is listed below: private void button1_Click(object sender, EventArgs e) { myProgressBar.Value = 0; } private void button2_Click(object sender, EventArgs e) { myProgressBar.Value = 50; } private void button3_Click(object sender, EventArgs e) { myProgressBar.Value = 100; } private void button4_Click(object sender, EventArgs e) { //thread start FormTest FormTestobject = new FormTest(); Thread mythreadtest = new Thread(FormTestobject.threadtest); // ио Ёл mythreadtest.Start(); } private void threadtest() { myProgressBar.Value = 0; for (int i = 0; i < 10; i++) { Thread.Sleep(1000); myProgressBar.Value = i*10; } myProgressBar.Value = 100; } all the three function to set value of progressbar seperately can work well.but why i start a thread and make it refresh the value doesn't seem to have any work on progress bar is there anything wrong with it thanks! Tag: Windows Forms General how to hide the vertical scrollbar of listbox Windows Forms
  - 4
    - Databinding with overview and detail form Hi, I try to build an application which has an overview form with a DataGridView and a detail form with the appropriate text fields. Who can tell me now how to bind the DataSet, BindingSource and the BindingNavigator of the detail form to the overview form with the datagrid BR / Chris Tag: Windows Forms General how to hide the vertical scrollbar of listbox Windows Forms
  - 5
    - Change Installation Path for an Add-in Hi, I'm trying to install an Add-in for Visio 2003, and I need to know the folder Visio is installed. First I want to search if the correct Visio version is installed, so I add a Search Condition to evaluate that and it works fine. But now, I want to use the path where Visio has been found to set it as my Installation Default Path. I've tryed to set it with a custom action, setting assemblyfolder or TARGETDIR properties, but installer ignores this code. Please, anybody knows how can I do that Thanks in advance, Jesus Tag: Windows Forms General how to hide the vertical scrollbar of listbox Windows Forms
  - 6
    - Controls unregistering their own events Hi, I have a memory leak problems that is resolved by either nullifying the datasource or unregistering the events of a Combobox. Nullifying the datasource might trigger events so I'd rather not use that solution. I could -= all the events of all my controls but what's I'd rather have is a way for the components to unregister their own events and since they don't know which ones were registered, I can't use the -= with explicite events. the controls have a EventHandleList call Events but it doesn't really work like other collections (can't really loop on it). Events.Dispose() method doesn't do the job either, the leak is still there so I presume that the events aren't really unregisted. So, What I'd like to know is if there is a way to loop thru all the registered events to unregister them I looked at the help for EventHandlerList since it is the type of Events property and it lists a public property named Item as being the delegate list but strangely, there is no such property in Events, not even hidden; obviously, the help is wrong or is it is there a way to expose that property Thanks Tag: Windows Forms General how to hide the vertical scrollbar of listbox Windows Forms
  - 7
    - Hide method doesn't work on program's first execution Hi there. In my application I have a main MDI form (called frmMain) and a login form (frmLogin) . frmMain is the main module of my application. I have the following code on frmMain load's event: this.Visible = false; this.Hide(); _frmLogin = new frmLogin(this); _frmLogin.ShowDialog(); When I execute the application for the first time on the current session, frmMain loads but remains visible and then frmLogin appears but frmMain is still there. Ok, I close the application and then run it again. This time frmMain hides correctly and frmLogin is the only form that is visible. If I restart the computer and attempt to run the program, same thing happens. Important note: if I run the program on a slow computer the problem always occur. Why this happens Thanks in advance Regards Tag: Windows Forms General how to hide the vertical scrollbar of listbox Windows Forms
  - 8
    - File verification I am trying to verify that some files on a hard drive are also listed in a database, and that file names listed in a database are also on the hard drive. I want to know if there's a more efficient way than what I'm doing. The files are divided randomly into some folders (so not to kill windows with millions( ) of files per folder). The files are stored like this Mainfolder __12345 __23456 __34567 Each folder location is stored in the db with the filename. So, I've opened a connection to the DB and am using a SqlDataReader to get a list of the folder names in the main folder. Then, I am using a FileInfo[] to store the file names of the first subfolder in the SqlDataReader. To verify both ways, I am looping through the FileInfo[] to get the filename(if i have a file name, I'm assuming the file exists, duh). Each iteration of the loop then opens an additional connection and datareader to check if the current filename exists in the db. Then closes the SqlConnection and the SqlDataReader in the loop before the next iteration. it just seems like I'm opening and closing a lot of connections, is that a problem Tag: Windows Forms General how to hide the vertical scrollbar of listbox Windows Forms
  - 9
    - Take two string from a string Dear All, I have taken a string in my code. I want to take the last two characters from this string. Can any body tell me how. e.g. the string is "Biswajit". I want to display the last two characters that is "it" from the right. Can any one tell me how it will be in c#. by sending a small code snippets. Regadrs, Biswajit Tag: Windows Forms General how to hide the vertical scrollbar of listbox Windows Forms
  - 10
    - Form controls reorder on show Hi everyone, I have a baseform which has 3 controls (a Panel, a splitter and a UserControl) that add to the form's Controls collection. I inherit from this form and add some controls to Panel (not directly to the form's Controls collection). The 3 base controls are docked such that the usercontrol and the splitter are on the right and the panel fills the remaining space. Obviously I want the splitter between the Panel and the usercontrol, which is what shows at design time, however I found at runtime the splitter is on the far right with the usercontrol to the left (making the splitter useless). Debugging this I find that the form's controls collection reorders itself when the form is told to show. Has anyone else experienced this and have any information as to what is causing the controls collection to re-order. I don't want to constantly check the control order when I call show. Thanks, Mark. Tag: Windows Forms General how to hide the vertical scrollbar of listbox Windows Forms
  - 11
    - DataGridViewComboBoxColumn - Display vs. Actual (data) value Hi All, Is there a way to specify display value and actual (data) value for a DataGridViewComboBoxColumn For example, my database table has a column account_type of type NCHAR(1), which is used to store either 'C' for Credit or 'D' for debit. When the data records are retrieved from the table and displayed on a DataGridViewComboBoxColumn cell, I want it to be displayed as "Credit" or "Debit" respectively. Vise-versa, when users add a new record, they should be able to select Credit or Debit from the combo box, but the actual data to be saved should be 'C' or 'D' respectively. Thanks in advance Tag: Windows Forms General how to hide the vertical scrollbar of listbox Windows Forms
  - 12
    - Strange problem with DataGridViewComboBoxCell Greetings, I am constructing a user interface that uses the tab control with two tab pages. Both have DataGridViews that are bound when the user loads an object and both have contain a column with the DataGridViewComboBoxCell that are bound with child/parent related binding sources. If I load dataset and Databind to both DGVs, the one displayed on the first tab page shows fine. When I click on the second tab page, I get an error that the "DataGridViewComboBoxCell value is not valid". However, if I click on the second tab before it is bound to any data (thus painting the control) then load the dataset and bind the controls, I do not get the error. The problem seems to be related to the DataGridViewComboBoxCell because when I replace the column with a Text Cell, the application works fine. Has anyone experienced this problem Many thanks in advance for any insights. Tag: Windows Forms General how to hide the vertical scrollbar of listbox Windows Forms
  - 13
    - Printing an Image with Color Profiles I'm trying to print an image and an finding out that the color matching options that are specified in the driver are not being applied. Specifically, there is supposed to be an ICM Color Profile applied to the output that isn't. I'm not doing anything special, just Graphics.DrawImage(), and PrintDocument.Print. I can't find anything in the documentation that says that I am responsible for applying it, and I would expect that most other people that are printing color images are not specifing a color profile to use. Here's my Printing code: Code Snippet PrintDialog DlgSettings = new PrintDialog (); DlgSettings . Document = printDocument1 ; if ( chkDuplex . Checked == true ) { iNumPages = 2; } else { iNumPages = 1; } if ( picList [ currentIndex ]. orientation == Picture . Orientation . LANDSCAPE ) { printDocument1 . DefaultPageSettings . Landscape = true ; } else { printDocument1 . DefaultPageSettings . Landscape = false ; } printDocument1 . DefaultPageSettings . Margins = new Margins (0, 0, 0, 0); printDocument1 . PrinterSettings . PrinterName = m_strPrinterName ; printDocument1 . PrinterSettings . Copies = 1; // (short)this.numCopies.Value; //printDocument1.PrintController = spController; for ( int i = 0; i < Convert . ToInt32 ( this . numCopies . Value ); i ++) { iPageNumber = 1; printDocument1 . Print (); } Here's my Drawing Code: Code Snippet float x = 0; //e.MarginBounds.Left; float y = 0; //e.MarginBounds.Top; Console . WriteLine ( "Page Margins are " + x . ToString () + ", " + y . ToString ()); float h = e . PageSettings . PaperSize . Height ; float w = e . PageSettings . PaperSize . Width ; Console . WriteLine ( "Page Size is " + h . ToString () + ", " + w . ToString ()); //define orientation of the card if ( picList [ currentIndex ]. orientation == Picture . Orientation . LANDSCAPE ) { e . Graphics . DrawImage ( Image . FromFile ( picList [ currentIndex ]. FileName ), x , y , h , w ); } I've been looking at the ImageAttribute Class but that appears to be for applying a color transform for each image object that is rendered. I just want to use whatever the Printer is set to use. Any suggestions Joel Hess Tag: Windows Forms General how to hide the vertical scrollbar of listbox Windows Forms
  - 14
    - find a string in datagridview Hi, I want to search a string value in datagridview. But i don't know how i do it. please help me. I try to do it and finally wrote a code like it: string aa= cozellik.SelectedItem.ToString(); if (aa == dataGridView1.Rows[0].Cells[1].Value.ToString()) { MessageBox .Show( "There is this record." );} else {} but this code searching in Rows[0]. I want it search in all rows at datagridview. Sorry for my bad english. I hope that i can tell my problem. Tag: Windows Forms General how to hide the vertical scrollbar of listbox Windows Forms
  - 15
    - Hyperlink in Datagrids Hi I have a windows application coded using Visual C# in .NET 2005. The application queries data stored in an MS Access table. One of the field in the access table contains text which is hyperlinked to particular files on the local machine. Say, I have a field called TITLE and all each of the specific documents (pdf or word) are hyperlinked to the corresponding record in the TITLE field. I am able to do this in Acess. But, this property does not carry over in the windows application. I am using a datagrid to display the queried results. I set the required field to be as "Hyperlink" property for the datagrid and still the file does not open. Any ideas on how to fix this Tag: Windows Forms General how to hide the vertical scrollbar of listbox Windows Forms
  - 16
    - more than one curve? this is really urgent, I need help about it.. I'm drawing a curve, and taking the coordinates of the points of the curve by clicking the mouse on the picturebox. I'm using a dynamic arraylist to get the best result about it and it works really good. but the problem is, whenever I click the mouse, it give an additional point to that curve. What I want is, to finish adding points to a curve (i.e. by right clicking the mouse) and when I start to left click again, it should start drawing a new curve, and it must continue this way for every other curve. I thought that it might be useful to make an object(which has its arraylist in it) array and to let the counter rise by1 when I right-click, so that it can start drawing a new curve. but I couldn't succeed. can anyone help thanks in advance. Tag: Windows Forms General how to hide the vertical scrollbar of listbox Windows Forms
- Next
  - 1
    - C# show new form vs vb way This is just a question. Why can C# not show a form as easy as vb. Form1.show(); instead we have to create a variable for it, etc.. Form1 Form1 = new Form1(); Form1.Show(); The same goes with calling another class, etc. What I always have to do is I create a blank class then set public variables in it. and from my other forms I always have to do this. Classcreated.variablename in vb is just knows when I type variablename that it is coming from the class I placed it in. I was just curious why C# acts like this and if there is an advantage to this or not. I was asked the other day that if c# required so many extra steps (most small) then why not just vb.net and I really could answer as a C# programmer. Tag: Windows Forms General how to hide the vertical scrollbar of listbox Windows Forms
  - 2
    - Saving and loding TreeView problem using List<TreeNode> collections hi, I'v looped on a treeview and stored all the nodes in List <TreeNode> collection Code Snippet private void GetNodes( TreeNodeCollection nodes, List < TreeNode > list) { foreach ( TreeNode node in nodes) { list.Add(node); GetNodes(node.Nodes, list); } } suppose I add root -- node0 -- node2 -- node5 | | | |- node3 --node6 | |- node1 -- node4 the List holds as follows 0 - root 1 - node0 2 - node2 3 - node5 4 - node3 5 - node6 6 - node1 7 - node4 1. I want to save it to disk should I save it using streamwriter 2. I then want to load this file on start of the program what load method should I use 3. then I want to populate the tree and here I'm stuck! I tried some code based on examples from the form: Code Snippet private void load_Click( object sender, EventArgs e) { treeView1.BeginUpdate(); treeView1.Nodes.Clear(); List < TreeNode > roots = new List < TreeNode >(); TreeNode tn = ( TreeNode )nodeList[0]; treeView1.Nodes.Add(tn); roots.Add(tn); //the roots is used to store the current node and parent node for ( int i = 1; i < nodeList.Count; i++) { TreeNode item = nodeList[i]; if (item.Level == roots.Count) roots.Add(roots[roots.Count - 1].LastNode); AddJob(roots[item.Level],item); } treeView1.ExpandAll(); treeView1.EndUpdate(); } private void AddJob( TreeNode targetNode, TreeNode inputNode) { if (targetNode.LastNode == null ) { targetNode.Nodes.Insert(targetNode.Index, inputNode); } else { targetNode.Nodes.Add(inputNode); } } and the I get exception that Im tring to inser a node not in the right place what should I do whats wrong here Tag: Windows Forms General how to hide the vertical scrollbar of listbox Windows Forms
  - 3
    - Derived Control child docking I have created a class for a control. I have tried deriving the class from UserControl, ContainerControl or an existing control and the following issue applies to all. The class I have created for a control contains a Panel docked at the top. When I use this control on a form in the VS designer, the control appears ok with the child panel docked at the top. Now I want to use the designer to add another control as a child of my control and dock this to the top but below the Panel that is added in the class of the control. However the designer always adds it above the existing Panel presumably because the Panel hasnt been added directly by the designer but is part of the derived control. Is there any way to get the controls i subsequently dock to the top to be below the Panel contained in the derived control. Thanks Steve Tag: Windows Forms General how to hide the vertical scrollbar of listbox Windows Forms
  - 4
    - how to add such checkbox column? Hi, I am using this code to populate data into datagridview and i want to add a simple checkbox column which is not related to any field in the database but it will be used for the staffto select the visit and make the payments for the selected visits only. how can i do that public void get_visits() { this.Cursor = Cursors.WaitCursor; data_table = new DataTable(); // sql_connection = new SqlConnection("Data Source=.\\SQLEXPRESS;initial catalog=shefa;integrated security=true"); sql_connection = new SqlConnection(public_var.sql_connection); sql_command = new SqlCommand("sp_get_patient_visits", sql_connection); sql_command.CommandType = CommandType.StoredProcedure; sql_command.Parameters.Add("@file_no", SqlDbType.Int).Value = file_no; sql_adapter = new SqlDataAdapter(sql_command); sql_adapter.Fill(data_table); dataVisits.DataSource = data_table; dataVisits.Columns["visit_id"].HeaderText = "insurance id"; dataVisits.Columns["visit_id"].DefaultCellStyle.Alignment = DataGridViewContentAlignment.TopRight; dataVisits.Columns["visit_id"].Visible = false; dataVisits.Columns["created_date"].HeaderText = "Visit Created"; dataVisits.Columns["created_date"].DefaultCellStyle.Format = "ddd dd MMM yyyy HH:mm"; dataVisits.Columns["created_date"].DefaultCellStyle.Alignment = DataGridViewContentAlignment.TopCenter; dataVisits.Columns["created_date"].Width = 160; dataVisits.Columns["direct_or_insurance"].HeaderText = "Payment"; dataVisits.Columns["direct_or_insurance"].DefaultCellStyle.Alignment = DataGridViewContentAlignment.TopCenter; dataVisits.Columns["direct_or_insurance"].Width = 120; dataVisits.Columns["visit_total_amount"].HeaderText = "Total Amount"; dataVisits.Columns["visit_total_amount"].DefaultCellStyle.Format = "BD #,###,0.000"; dataVisits.Columns["visit_total_amount"].DefaultCellStyle.Alignment = DataGridViewContentAlignment.TopCenter; dataVisits.Columns["visit_total_amount"].Width = 120; dataVisits.Columns["visit_closing_paid"].HeaderText = "Paid Amount"; dataVisits.Columns["visit_closing_paid"].DefaultCellStyle.Format = "BD #,###,0.000"; dataVisits.Columns["visit_closing_paid"].DefaultCellStyle.Alignment = DataGridViewContentAlignment.TopCenter; dataVisits.Columns["visit_closing_paid"].Width = 120; dataVisits.Columns["visit_is_open"].HeaderText = "Open "; dataVisits.Columns["visit_is_open"].DefaultCellStyle.Alignment = DataGridViewContentAlignment.TopCenter; dataVisits.Columns["visit_is_open"].Width = 120; // dataVisits.Refresh(); if (file_is_open == "N") { toolOpenCloseFile.Visible = true; toolVitalSigns.Visible = false; toolPayment.Visible = false; } else { toolOpenCloseFile.Visible = false; toolVitalSigns.Visible = true; toolPayment.Visible = true; } } Tag: Windows Forms General how to hide the vertical scrollbar of listbox Windows Forms
  - 5
    - Disable file name text box in SaveFileDialog? I am using the SaveFileDialog class to prompt the user for a location to save a particular file. The kicker is that I don't want the user to be able to change the name of the file. I want to display the file name that I specify through some c# code, then disable the file name text box so that it can't be changed. The SaveFileDialog class does not have a property to disable the text box. Is there some other way to do it. I found the following articles about customizing the common file dialogs: http://msdn2.microsoft.com/en-us/library/ms646951.aspx http://www.codeproject.com/cs/miscctrl/OpenFileDialogEx.asp Frankly, I couldn't figure out how to change the properties of existing controls, though. Any suggestions Tag: Windows Forms General how to hide the vertical scrollbar of listbox Windows Forms
  - 6
    - Is there a way to export a datagrid to an Excel or html format file? Hi all.. thanks for taking the time to help in advance!! :) I've written a win application that has a datagrid which displays certain contents from a database, is there a way to allow the user to export the contents of that datagrid to maybe an excel file or html file so they can print it out themselves I've done a lot of googling and most i could find were for web applications and not winform.. can someone point me in the right direction Thanks very much guys! :) Tag: Windows Forms General how to hide the vertical scrollbar of listbox Windows Forms
  - 7
    - Toggle ToolStripSplitButton Hi, How can I create a ToolStripSplitButton that I can toggle (similar behaviour to the ToolStripButton) Sample or hint would be much appreciated. Regards, Ron2464. Tag: Windows Forms General how to hide the vertical scrollbar of listbox Windows Forms
  - 8
    - capture text from textbox HI .. I have some text in a textbox. and I want to allow a user to select some text and convert it to BOLD by clicking a button. Is there away to capture what user selected once the user clicked a button. Thank you, Tag: Windows Forms General how to hide the vertical scrollbar of listbox Windows Forms
  - 9
    - DataGridView Bug or my mistake Hi, i came across some ugly bug with DataGridView and PictureBox (for instance) when bound to the same filtered sorted table. May be i'm missing something, please help to understand let's say i created BindingSource bs = new BindingSource(); BindingSource.DataSource = myTable; my table has the following structure ID int (Primary Key) NAME varchar ACTIVE short PICTURE blob with only one row e.g Name = 'George'; Active = 1; Picture = some picture i set filter and sorting bs.Filter = "Active=1"; bs.Sort = "Name"; i load the table into DataGridView dataGridView1.DataSource = bs; and bind some controls (PicturBox among them) to the table fields Binding b = new Binding("Image", bindingNavigator1.BindingSource, "picture"); b.Format += new ConvertEventHandler(b_Format); b.Parse += new ConvertEventHandler(b_Parse); pictureBox1.DataBindings.Add(b); in Format and Parse events i format the Image to properly display images and nulls void b_Format(object sender, ConvertEventArgs e) { if (e.DesiredType == typeof(Image)) { if (DBConvert.isNull(e.Value)) e.Value = new Bitmap(1, 1); else { using (MemoryStream m = new MemoryStream(e.Value as byte[])) { m.Position = 0; e.Value = Image.FromStream(m); } } } } void b_Parse(object sender, ConvertEventArgs e) { if (e.DesiredType == typeof(byte[])) { using (MemoryStream m = new MemoryStream()) { (e.Value as Image).Save(m, ImageFormat.Png); byte[] b = new byte[m.Length]; m.Position = 0; m.Read(b, 0,b.Length); e.Value = b; } } } Now i add a new row which has by default Active = null, and Picture=null that's why i modify filter to see both rows, as long as new row is not saved DataRow Row = myTable.NewRow(); Row["ID"] = 1000; //hier Active and Picture are null by default myTable.Rows.Add(Row); bs.Filter += " or ID=1000"; When the new row is added, it becomes the first row in grid because of sorting by name. Now I edit the name value of the new record, i set it to "Test" making it become the second row in grid (again because of sorting by name, another record has "George" in Name). And now the Bug - as soon as Grid losses focus, sorting occurs, the values of old row with "George" (Active and Picture) a overwritten with values of new row (setting Active and Picture to null) - it causes the old record do disappear from filter and makes Grid scream "Index out of range". And now attention: if 1) no sorting and filter apllied 2) the new record is added after the old one (causing no new sorting) 3) only DataGridView is bound to table 4) only PictureBox and other Controls (TextBox, CheckBox) are bound to the table everything works just fine. I also noticed some strange thing, the problem of combined binding applies only to some controls, e.g. PictureBox or modified CheckBox (which allows null). It can be my error but ... without each other (Controls and Grid) things work just fine. Tag: Windows Forms General how to hide the vertical scrollbar of listbox Windows Forms
  - 10
    - Getting a TableLayoutPanel to Scroll in "real-time", not delayed after scroll thumb de-clicked I've created an application that puts several rows of controls inside a TableLayoutPanel. I set AutoScroll to true. I notice that when I scroll, it does not scroll the contents until after I let go of the scroll thumb. How can I make it scroll in "real time" For example, a DataGridView control scrolls the contents while moving the scroll thumb up or down. How can I make a TableLayoutPanel scroll in "real time" Mike Spock Tag: Windows Forms General how to hide the vertical scrollbar of listbox Windows Forms
  - 11
    - How to enable/disable the close button('X') in window form ? Hi All, I would like to disable/enable the close button('X') on the window form. Does someone know how to do Thanks, walker Tag: Windows Forms General how to hide the vertical scrollbar of listbox Windows Forms
  - 12
    - Controlling the painting of propertygrid cells? Hi all, I need the property grid to display "(Empty)" string when there is actually no value entered by the user for my application. However, when the grid item value box is clicked on, the "(Empty)" string text needs to be cleared and the caret should be at the start of the line. Ideally, the "(Empty)" text should be italic and gray in color whereas the actual value enter by the user will be normal and black. Is this possible I tried playing around which the PaintValue but with little luck. Basically, what I am after is similar to what DataGridView.CellPainting event can do. Anyone has any idea if this is possible at all and how to go about doing it Thuan Tag: Windows Forms General how to hide the vertical scrollbar of listbox Windows Forms
  - 13
    - Customized Setup [to add our/custom dialog within setup] hi all, i am working with Desktop application, and trying to create a setup project. i finalized my application and now creating the setup for that application. what i need to do is, with in setup dialog boxes, i have to add my custom form which will ask for DB Details like DBServer name, User Name, Password, name of Database and SQL Server Selection etc., So, Besides my main application, i also added a Class Library Project with an Installer Class. I opened a new form [which i expect tobe my custom dialog box in within setup steps] in BeforeInstall event. i invoke this form which would ask user about above DB Details. After Successfully creating these two project [main application and Installer Class] i created a setup project, added the primary output of application and in the custom action view, i added the Installer Class Dll. here is the problem: when i try to run the Setup created, the form which i created in the installer class, is comming at the end of installation. i want it tobe the part of initial Setup dialogboxes steps. can any body help me.. i did a loooots of workaround for this solution over codeproject but didnt find any suitable solution.. please help me... thanx in advance./. Tag: Windows Forms General how to hide the vertical scrollbar of listbox Windows Forms
  - 14
    - Resizing with step Hello! I have one form which height must be changed with step (for example 15 pixels) and i tried to do that with the following code: Code Snippet Public Class Form1 Private Const HEIGHT_STEP As Integer = 16 Protected Overrides Sub OnResize( ByVal e As System.EventArgs) MyBase .OnResize(e) Me .Height = Me .MinimumSize.Height + Math.Round(( Me .Height - Me .MinimumSize.Height) / HEIGHT_STEP ) * HEIGHT_STEP End Sub End Class But there is a lot of flickering which i expected but i don't know how to do that better... B. Dimitrov Tag: Windows Forms General how to hide the vertical scrollbar of listbox Windows Forms
  - 15
    - Bound combo boxes Hello there, I'm beginner programmer and I need some help about bound combo boxes. I develop win app that use 3 combo boxes bound to 3 columns of one database table (ex. first column contains States, second Districts and third Cities)I use three binding sources for the boxes each contains one column( I want to choose state from first combo then district with this state in second and city from this area from the tird box) When i start app and select from 1,2 and 3 boxes everything is ok, but when I change state from first box I got an exception(Object reference not set to an instance of an object.)Second and third boxes working well Thist is handler for first box when I fill second private void StateComboBox_SelectedIndexChanged(object sender, EventArgs e) { this.tEKATTE_TableAdapter.FillByOb(this.studentBirdPlaceDataSet._tEKATTE_,StateComboBox.SelectedValue.ToString()); } I dont know what is going wrong.Tanx Tag: Windows Forms General how to hide the vertical scrollbar of listbox Windows Forms
  - 16
    - SQLDataSource Edit Problem I have a GridView with a SQLDataSource. I want to use ASP.NET's built-in editing feature, so I have a CommandField in the SQLDataSouce with ShowEditButton="True" and the necessary DataKeyNames line in GridView. If I have a static SELECT statement, editing works fine, but if I dynamically change the SELECT statement during page load, edit doesn't work. When I click "Edit," the record's fields change to input boxes as they should and there's an "Update" button, but clicking "Update" doesn't update the database. It's as if ASP.NET detects that the SELECT statement has changed and invalidates the update. Delete works. I've Googled till the cows come home, and I can't find anything describing my problem. Anyone have a clue what's wrong Tag: Windows Forms General how to hide the vertical scrollbar of listbox Windows Forms

jazeel

hi,

i am a beginer in the world of C#

1. I want to hide the vertical scrollbar of a listbox . In properties i can hide the horizontal scrollbar , but there s no option for vertical scroll bar.how can i hide this

2. I also want to call the event of vertical scrollbar on a button click.. i dont know it is posible or not... Is it possible then can u give any tips

thanking you in advance

jaz

Re: Windows Forms General how to hide the vertical scrollbar of listbox

TilakGopi

Hi,

1. I want to hide the vertical scrollbar of a listbox . In properties i can hide the horizontal scrollbar , but there s no option for vertical scroll bar.how can i hide this

Vertical scrollbar only comes when the visibility of it's items ,crosses it's border.If there are more items , u obviously need scrollbar.For less items , u wont' get that.

2. I also want to call the event of vertical scrollbar on a button click.. i dont know it is posible or not... Is it possible then can u give any tips

I have checked all the events, no particular event for click on vertical scroll bar , what situation made to raise this question.If u can post it, i'll try to provide the alternative solution for it.

Thanx,

Ch.T.Gopi Kumar.

Re: Windows Forms General how to hide the vertical scrollbar of listbox

jazeel

Thanks for your reply,

actually i want to customize the appearance of the listbox , by adding two buttons (up and down) instead of scrollbar.. i think if i can hide the scroll bar and , able to call that event on button clicks..

thanking you once again

jaz

Re: Windows Forms General how to hide the vertical scrollbar of listbox

TilakGopi

Hi,

I tried using some Win32 functions(SetWindowLong and GetWindowLong) but invain , to hide the scrollbar.

There may be ways.Good lcuk.

Thanx,

Ch.T.Gopi Kumar.

Re: Windows Forms General how to hide the vertical scrollbar of listbox

jazeel

thanx

shall i do this using cutom controls

jaz

Re: Windows Forms General how to hide the vertical scrollbar of listbox

TilakGopi

I'm new to C# .I don't know about custom controls.U may do.

Post this same question i a new thread , u may get some helpful answers.

Thanx,

Ch.T.Gopi Kumar.

Re: Windows Forms General how to hide the vertical scrollbar of listbox

jazeel

Thanx