So I'm dragging a table from the datasources window onto a grid. I use the dropdown arrow on a date field in the table and select DateTimePicker as the type of control to use. Then I drop the table on the form - and get a text box. Is there a way to have a datetimepicker or similar control in ...more >>

I need some help. I've been trying to get my form to work properly using .NET 2.0 with Visual Studio 2005. Here's my problem. I used to program in classic asp, and recently started moving into the .NET framework. I used to send my db id number through the form post method in ASP and it worked....more >>

I'm looking for a way to display text information on a windows forms app in a way that as new information is added the newest info is always visible. The best way to explain is this: A regular textbox control would work perfectly fine for me if only as I append text to it, it scrolled to the b...more >>

I noticed when overriding the Text property of the System.Windows.Forms.UserControl that the Form.Designer file does not reflect changes made via the property browser. In other words, when you override the Text property and then try to change it's value at design-time, the value is not seri...more >>

hi I am VB6 programmer, working on VB.net now, came across this. To my surprise this didnt work as it used to work in VB6... I am making a form with 2 buttons - BONE and BTWO, given its labels as B&ONE and B&TWO so that I could access (have focus) on that button via keyboard by pressing an ...more >>

How do I get two subclassed TreeViews to share a panel with a splitter? I have 2 derived TreeView controls: internal class TreeConfiguration : TreeView internal class TreeProject : TreeView How do I get them docked in a panel? In the constructor of my Form I have this: public...more >>

Can an mhtml page be viewed using the System.Windows.Forms.WebBrowser control? When I use the Navigate method it works but if I try to use the DocumentStream property it doesn't render any of the images. The source is a web page saved in IE6 using SaveAs mht I want to be able to store an mht...more >>

Hello, I want move the focus between controls with enter key, like (TAB). Can you help me? Thanks. Antoni Gomez ...more >>

I have a listview whose contents are constantly being refreshed. When a refresh occurs, I delete all the items and add back. I want to maintain the scroll position before deleting all the items, and then want to restore it once the items are added back. I'm using P/Invoke Get/SetScrollInf...more >>

I'm selecting the whole data in DataGrid (Ctrl+A) and going to handle copying operation (Ctrl+C). But I can't handle this key combination. Where is event fired? ...more >>

Hi guys, here is a question about a custom control. When I wanted to create a custrom control from scratch, I followed the steps as bellow, 1. Create a new contorl liabrary project. - but why does VS2005 create a UserControl derived class at first? 2. Add a newItem (custom control) to the...more >>

Hi there, With datagridview, is there a way to merge adjacent cells as we can do with Excel or even MSFlexgrid in VB6? Thanks. Derek...more >>

Okay I seem to be missing something. I have a custom control written in C#. I want it to receive keyboard input which I can then process. I've overridden the OnKeyDown and OnKeyPress methods to add my code to them. I've also added a call to SetStyle to set the control as selectable so it c...more >>

Hi - Back in VB 6.0, creating a control was pretty straight-forward. You used the Property Bag thing to store persistent data during design-time, etc. I have to admit that in C#, I'm lost! I need a sample C# User Control that demonstrates not only the run-time functtionality of properties, etc...more >>

how to forcfully kill a running process by executable name with a .net application? ...more >>

If the code in the tick event of a windows forms timer control takes so long to run that it is still running when the next tick event occurs, what happens? Is the second tick event ignored? Thanks, Carl ...more >>

I want to update cells in the same row where a DataGridViewComboBoxColumn exists I would like to use the Slectedindexchanged event but can't locate this for the DataGridViewComboBoxColumn control thank you in advance -- Ludo Nagels...more >>

As previously noted I am implementing "AutoFilter" functionality in the DataGridView, similar to that seen in Excel. This is done by inserting a row of DataGridViewComboBoxCell objects at position zero in the grid and filling each combo with a list of possible values for the Column in which it...more >>

Hi All I have a VB2005 program which stores photos of members as bitmap files On a form a picture box (picCapture) loads the picture from file When a new photo is required the user clicks on a button and my code captures a new photo and saves it 50% of the time the code works fine, the...more >>

Hi, I have three textboxes on the same row on a FlowLayoutPanel. I want the one on the left and right to have a fixed width but for the one in the middle to fill any remaining space depending on the width of the FlowLayoutPanel. Is this possible? (The widths of the left and right boxes aren't...more >>

Is there a way to control the opacity for windows forms controls in .NET 2.0? Thank you....more >>

Hi group, does someone know how to permanently highlight an ListView Item, even if focus is set to something else (say a textbox for editing this item's name)? Any help would be appreciate, Florian ...more >>

Hi, i'm loading a stream with HTML data via the property DocumentStream into the WeBrowser Control. The HTML code is displayed, but the CSS information seems to be ignored. If i save the same data to a file and if i load this file via webBroser.Navigate(...) the CSS information is applied....more >>

I have a class that inherits user control: public partial class ValidationSubDesigner : UserControl { It works jsut fine, the problem occurs when I try to inherit it: public partial class FieldCompareFieldDesigner : ParamDesigner { //public partial class FieldCompareFieldDesign...more >>

I create an Array from a database query that is a property of an object I use in my C# WinForms .NET 2.0 app. When I instantiate a custom TreeView control, I want to populate that TreeView with this Array. Can I cast the Array to a TreeNode[] array? I tried this: Array configArray = ...more >>

Adding rows to an unbound grid can be pretty slow and can leave the UI in an intermediate state before the grid has been fully redrawn. Is there anything I can do about this. ISupportInitialize.BeginInit/EndInit and Suspend/ResumeLayout do't appear to help much. Admittedly I am displaying a...more >>

Hi. I am adding a row to a DataGridView to provide "quick filter" functionality (i.e. a row of combo boxes to allow easy filtering of column values). If I am clearing rows from the grid I want to preserve the filter row rather than recreate it. I use code similar to the following: // filter...more >>

hi, For some reason i cannot customize the columns of a DataGrid. I don't want the grid to display every column of my dataset and also change the width of certain columns. Scenario: Designer: - Put a Datagrid control on my form. Code - behind: - Retrieved data from my DB and stored it i...more >>

Hi, From time to time, I'm getting the following exception : Message "Object reference not set to an instance of an object." StackTrace " at System.Windows.Forms.ToolTip.CreateHandle()\r\n at System.Windows.Forms.ToolTip.get_Handle()\r\n at System.Windows.Forms.ToolTip.WmWindo...more >>

Consider an Access 2000 drop down list containing the following: Internal Wibble Wobble Pressing the W key and then the I key selects the Wibble entry Pressing the W key and then the O key selects the Wobble entry How do you configure the Windows.Forms.DropDownList to do the same? It onl...more >>

I have loaded an assembly using Reflection.Loadfrom and created an object of the control type defined in the assembly. The control in the loaded assembly has a button. In the assembly, clicking a button raises as heyLookAtMe event. How do i trap that event in the code that loads the assemb...more >>

Greetings; While working on a project, I created a user control that displays an icon and text. I called the control Marker. The Control works as expected. Just for grins, I then modified Marker so that it is an abstract class, i.e., public abstract class Marker : System.Windows.Forms...more >>

I have searched high and low, tryed a picture box, 3D border, etc... doesn't appear right, can someone help me with this, i'm sure it's really simple. How do you put a horizontal rule, or seperator bar on a windows form, i.e. those that are most commonly seen on dialog boxes. Thanks in adva...more >>

Is anybody aware of a component or sample application using a RichTextBox with a formatting toolbar using the .Net 2.0 framework. (Much like WordPad) ... I found one control, http://www.textcontrol.com/products/dotnet/, however this control is using the 1.1 framework and would cause deployme...more >>

Hello all, I am interested in displaying a tooltip for a particular DataGridViewCell, if certan conditions happen, regardless of mouse hover. So the cells tooltiptext is out of the question, because it shows up only on mouse over, and ToolTip class seems impossible to be used because a Da...more >>

I want to step through the rows returned by my DataView, extract some values from some of the columns and append them to the text of various rich textbox controls while possibly changing the color of each new line. It seems as though I should use the Lines property but can't find a good ex...more >>

Hi, I can display a link in the rich text control which the user can click on which then opens explorer and takes them to that page. I need to go a step further and display the link as a name hiding the URL behind it but when clicked on opens up explorer in the same way. Is there some ric...more >>

Hi NG! Is there any way to get a hand on the scroll buttons of the TabControl, those that appear at the right of the TabPage headers when there is not enough room and the Multiline property is set to false? How to change the aspect of these buttons? Thanks in advance. pax ...more >>

Hi all! Here is the thing: I have a panel with autoscroll set to true, and have controls that are outside the viewing area (thus the autoscroll:). Now, I know that the autoscroll panel scrolls the focused control into view which is ok, but it also happens on paint event - when anything changes ...more >>

Hello, I am trying to merge all of the ToolStripItems in a DropDownItems collection to a ContextMenuStrip. private MenuStrip menuStrip1; private ToolStripMenuItem fileToolStripMenuItem; private ToolStripMenuItem newToolStripMenuItem; private ToolStripMenuItem copyToolStripMenuItem; pri...more >>

Access has the Bound Object Frame control which allows you to support a very neat drag and drop container into which almost any file can be dropped including pictures in the clipboard. Does Windows Forms have anything similar? Thanks, Rob. ...more >>

Hi, I need to change the text of my textbox within TextChanged event handler. The problem is that the textbox keeps triggering the TextChanged event recursively. Is there any way to prevent the text changed event when I change the text of my text box inside the text changed even...more >>

Hi all, I got A node that is selected, but went the treeview loose focus, It become Grey but not enough to see that it is still selected I would like it to remain selectedDarkBlue as it was when the tree has focus. how can I achieve that ? thanks, (By the Way Sorry for My poor En...more >>

Here is the situation: I have a base class (BaseUserControl) which inherits from UserControl. Now I created a bunch of controls that inherit from this base class and that I add to different Forms. The load event is being called in design mode. And i know this is by design because the Form need...more >>

It seems that the behavior of NotifyIcon.ShowBalloonTip is different under XP and Windows 2000. If I call it twice in a row on XP the second balloon replaces the first (as the MSDN documentation explains) but on Win2K it creates a new balloon over top of the first, such that when I click to ...more >>

hi, what's the most convinient way of hiding events in inherited controls? I've created my own button control which derive from System.Windows.Forms.Control, which provides DoubleClick event. Normal button does not need this event, what's more i have to override OnDoubleClick to perform two...more >>

Hello How would I go about getting the selected text out of a WebBrowser control? I have searched the net and found some code which uses the mshtml interface but I couldn't cast my webBrowser1.Document to IHTMLDocument2 using Visual Studio 2005. Thanks Mark ...more >>

I have a custom collection, inherited from collectionbase, which contains a collection of custom objects. I can set datagrid.datasource to the collection, and it displays in the datagrid, but I don't have an asterisk row below the last row which would allow me to add a new row. What should ...more >>

Hi, I've created a Custom Control which looks like this: [Designer(typeof(myNamespace.FixedSizeControlDesigner), = typeof(IDesigner))] public class MyControl : UserControl { public MyControl () { .... } } The ControlDesigner is just a designer that ...more >>

When I run a winform app (.NET 2.0) with some toolstrips on it, I find that if the winform loses focus, and I rteturn to the winform, I need to click on the tool button twice in order for it to fire the click event. The first click seems to give the winform focus and the second click fires the e...more >>