Does anyone have an example of a DataGridView that uses a DataGridViewCheckBoxColumn (or DataGridViewCheckBoxCell?) that allows multiple rows to be checked? I can't seem to get the check box to stay checked. It seems to 'uncheck' itself as soon as you click anywhere else in the datagridvie...more >>

I have an unmanged MFC app that is using CWnd::CreateControl to activate ATL Composite controls. This is an existing production app that is working fine with the ATL controls. I am building a new C# Composite control on the CLR using UserControl as the base class and activating it with the exi...more >>

I have made the folllowing code: using System; using System.Windows.Forms; using System.Runtime.InteropServices; using System.Collections; using System.Drawing; namespace SVR.ListViewEx { public class ListViewEx : ListView { private const int WM_NOTIFY =3D 0x004E; private const int...more >>

Hi, all I'm newbie on .Net, I want to develope a control based on NOT UserControl BUT Control In Design Window, I drag a button from toolbox and drop it on my class, but when I look at InitializeComponent() in myclass.designer.cs , I Cann't find "this.Controls.Add(button1)", and When...more >>

hi i'm using a DataGridViewComboBoxCell on the DataGridView-control. now i want that the DataGridViewComboBoxCell drops down when a user clicks into the cell... which method of the DataGridViewComboBoxCell does i have to call for such action? thanx for every hint. jazper manto ...more >>

I have a user control (inherited from System.Windows.Forms.UserControl) which shows some kind of interactive graphic to the user. The user control is placed in a System.Windows.Forms.Panel with AutoScroll set to True. If my user control is larger than the container panel the panel shows scrol...more >>

I have a Windows form with a ToolStrip control. The ToolStrip has a ToolStripProgressBar with Style set to 'Marquee'. I want to show the animated progress bar during a background operation which I implemented using a System.ComponentModel.BackGroundWorker Everything works fine, except the T...more >>

Here is a simple question: There is a list of objects in a collection that need to be displayed in a ComboBox. The text that should be displayed is NOT the ToString(), but the property LongDisplayName. What is the best way to display this collection? Should I be using a BindingSource or s...more >>

Hi, I'm using Visual Studio 2005. I want to hide a public property from IntelliSence. To do that i tried EditorBrowsable, but it doesn't seem to change anything on IntelliSence - the property it's still visible. private Log.TraceLevel applicationTraceLevel = Log.TraceLevel.Error; ...more >>

Hello, I've several controls which I fill with a GradientBrush. That Brush has an endcolor as Transparent. I also fill it using a GraphicsPath. This container control does also support transaprentbackground, set via SetStyle. In non-container controls, this works well. But in Container con...more >>

I am getting a concurrency error when doing an update with my table adaptor. I can fix this by making my table pessimistic concurrency but I'm wondering if there is another way. I am updating Auditing fields everytime I update any field (EditUser, EditTime). This causes concurrency issues b...more >>

Hi, I tried to re-create the standard winform button to learn how to build a custom control. I have problems with the transparent background (around the rouded edges of the button) ... Can someone tell me what I am doing wrong ? Thanks, Arkam This is my code ... just paste is in ...more >>

In the following sample: ListBox.IntegerCollection tabStops = new ListBox.IntegerCollection(listBox1); tabStops.Add(50); listBox1.UseCustomTabOffsets = true; shows no effect! . Maybe I missed something? Thanks in advance. H. Leeb ------------------------------------------------...more >>

Hi, I'd like to put some rich text that will represent chemical formula etc in a ListViewItem. Can someone outline the steps I need to follow to create a custom control that inherits from ListViewItem to achieve this? Thanks, Daniel ...more >>

Hi All, I have been having difficulty formatting a column in a datagridview The default display for a datetime shows the time with I don't want in this case So I thought easy just change the column format The column is setup unbound such as this this.TransDate.DataPropertyName = "TransD...more >>

How come when I set the text propert on a statusbar it paints the text immediately (so I can give status updates during lengthy operations). But with a label in a statusstrip it does not get painted until the operation is completed. Is there a way to force .NET to paint the status strip now, a...more >>

I have a custom control I developed, and it has a little arrow on it. I want the user to be able to move the arrow by pressing the left and right arrow keys when the control is selected. However, when I put the control on the form, and select it, when the user presses the arrow key, the fo...more >>

Hi, all I have a user control like text editor, which be add to a test form, I want the control CreateCaret,SetCaretPos,ShowCaret when the control GetFocus. which event of the control should be handle? when I add a OnEnter event handle to the control and active the form, the event fire ...more >>

In VS.2005, in a Windows project, how can I connect a toolstrip to an inmagelist control? I can't find the imagelist property on the toolstrip control anywhere, Thanks in Advance, Laurence Nuttall Programmer Analyst III UCLA - Division of Continuing Education...more >>

I was under the impression that components that do not have a visual presence on a form show up in the component tray of the designer but controls do not. However, the ToolStrip is a control that does have a visual presence, but it also shows up in the component tray. Why is that, and in gen...more >>

Hi all, I am using VS2005 and I am having issues with the 2.0 tabcontrol on a form. In the designer it shows with the XP style tabs however when I run the application the tab control is appearing with the classic style, as it did under the 1.1 framework. Does anybody have any ideas why this...more >>

My DataGridView, after being populated, is correctly sizing the rows and columns to fit the data (thanks to "AutoSizeColumnsMode" and "AutoSizeRowsMode" being set to AllCellsExceptHeader and AllCellsExceptHeaders respectively). However I'd like to have the grid itself trigger a resize of th...more >>

The .Net report viewer control is overriding the print driver settings and putting them back to factory defaults on a Zebra label printer. The darkness setting is the problem, as the factory default is too light. In Microsoft Office: When printing to a Zebra label printer TLP 2844-Z, Micr...more >>

Ok I've just got to assume that there's a good reason for you guys at MS having added the .TextLength property off of TextBoxBase but I can't seem to fathom how it could do anything different than .Text.Length! Anybody have some insight into this? Thanks, Brandon -- KMG Software, Inc. ...more >>

Hi all, I'm very new to using the windows forms controls and I have a few questions. I am trying to create an app with 2 listboxes, the Top and the Bottom. I need to put several lines of data in Top so that when the user selects the lines, additional info is given on Bottom. However, I'v...more >>

Hi, I want to write a dynamic program to find ContextMenuStrip in the form, but I cannot find this control see the code below. How can I solve it? ------------------------------------------------ For i = 0 To Me.Controls.Count - 1 MessageBox.Show(CStr(Me.Controls(i).Name)) Next -----...more >>

What is the best way for my control to be painted in the NonClient area? I have a control, that when it's visible to be painted outside of the client area (so I think). The functionality I am trying to duplicate is similar to moving a ToolStrip into a ToolStripPanel, (say on the left of a fo...more >>

Loading a WebBrowser control with a URL produces an annoying "click" noise, presumably because this is the default noise on loading a new page in IE, but regardless of the IE settings is there a way to direct the WebBrowser control to be silent ? ...more >>

Need to do some processing after entry in unbound grid. Pressing the Enter key moves the cursor to the next row. Ctrl Enter prevents it from moving to the next row but that is not desirable. How does one prevent moving to the next row. Tried setting StandardTab to True/False. No luck. ...more >>

All, I have a DataGrid that when I scroll down it does not refresh and the lines get all messed up, I need to capture the scroll events in the listbox. I am using C# and winforms. Any ideas how to capture the scroll events? Bryan ...more >>

Hi everybody I need to change the listview scrollbars style to the windows default. my problem is that if I apply an xp theme, this scrollbars change to the theme applied and I need them to remain with the same look and feel of the Application. I hope I explained myself Thanks in advance...more >>

Hello! I have a problem: I use a datagridview control to display data coming from a server application. The data is taken from a "generic" on the client side (that has in each element a cell from my table) and put in a dataset table (I've tried puttting it directly to the datagridview and ...more >>

Hi I've MDI form and to child forms (c#.net) and i open the 2 child opens and in first child form what i ever i do that will be recognized in 2nd child form. for eg. if i clicked a button in first child form then in 2 nd child form at that instance only it has to disply the button name which i'...more >>

How do I manually resize a control on a form at run time without a splitter? let's imaginge I have textbox, I want to be able to resize it at runtime, just like one would at design time. Hi Can anyone tell me how to resize the controls on a form at run time? assume that i've a textbox control...more >>

The ListView control under 2.0 does not behave exactly the same way as it was in 1.1. We are noticing that the same code running with 1.1 was flicker free, but with 2.0 has massive flickering. I am wondering if anyone else is having this problem, and if there is a solution. Thanks. ...more >>

Hi Is it possible to create my own tool box control on which i can place the controls i've creaetd or some other controls which already exisits? Can anyone tell me how to do this? or if you know any third party control which act as a tool box control please let me know. Thanx in advance Yo...more >>

All, I have a DataGrid that when I scroll down it does not refresh and the lines get all messed up, I need to capture the scroll events in the listbox. I am using C# and winforms. Any ideas how to capture the scroll events? Bryan ...more >>

Trying to compile a form with a DataGrid named dgView that contains the following line: foreach(DataGridColumnStyle dgcs in dgView.TableStyles.GridColumnStyles){...} This line throws a compiler error in Visual Studio: System.Windows.Forms.GridTableStylesCollection does not contain a defi...more >>

Is it possible to change the order of rows within a datagridview via drag drop? Is it even possible to drag and drop within the same datagridview? I've seen this done with listviews, but never datagridview and can't seem to mimic the behavior, ie, cannot override OnItemDrag if it doesn't exist...more >>

Hey everyone, I know this has to be simple, but can't figure out how to do it. How can I display the grid lines in all rows in the gird. The default behavior of the DataGridView seems to be that it only shows grid lines around rows that have data in it. If there are not enough rows to fill the h...more >>

in my app i need to make a RichTextbox control transparent. i need it to be a like a pane of glass lying on a sheet of paper, where u can see everything on the sheet of paper not covered by text written on the glass pane. i need to be able to see the control or form that is underneath the Rich...more >>

Recently, I subscribed to a keypress event on a regular text box. It seems to work great allowing only digits and one decimal point. However, when I promote the code to a superclass of the ui it doesn't seem to get invoked although there are no compiler errors and runtime seems ok except for...more >>

There was a post about this a few days back but no response to data, I hope you don't mind a re-post. Using a ListView which has enough items in it for the vertical scroll bar to show. In the lower part, which scrolls into view when you scroll down, the grid-lines are drawn at what looks li...more >>

I've been playing around with the datetime picker control and I can't seem to get it to show the calendar and the text in french. My users need to see the french names for the month and the french names for the days of the week. How can I get this result? I can set the localized Ui culture for...more >>

I developed a class in VB.NET 2003 that connects and listens to an IP Endpoint. It must also to some housekeeping by sending "keep alive" messages as well. There are a whole bunch of tedious rules which I won't go into here. Since 2003 let's you do cross-threaded calls, it wasn't a proble...more >>

HI all, I have many panels in a form, each panel contains 3 labels and 2 comboboxes. The panels are linked to the same Enter event, and i want to use the text property of any labels when the event is triggered. How can I acces the text property of any label in the panel?? TIA ...more >>

Hello I have built a DataGridView that its data source is binded to a DataTable after adding it 200 rows I try to remove the first row and the program stuck, What could it be???? Thanks. ...more >>

Hi all, I have a class with a panel and a combobox defined in it. In a form i'm using that class ........ private myclass Mc = new myclass(); however, I can't see the panel or the combobox drawed in the form!!, What am I missing?? I have defined for the panel the size, locatio...more >>

Hi, Iam working on a window application using .NET framework 2.0. I want a check box + some text in a combobox. User can select multiple items in combo box by using the check box. My requirement is : I have a report page. User selects some data and click on 'S...more >>

How can I make a column in a datagridview control contain a datetimepicker control to enter or edit a date in a cell? If its not asking too much I would appreciate an almost click by click desvription or a snippet of code needed to do that. The datagridview I use is bound. Thanks in adva...more >>