Hello, I am placing few controls in Rich text box, Like normal text box, picture box etc. But when i am savgin the content of rich text box....it is onlt stroing the text which i have wriiten into it. It is not saving the tex of the control whih are placed inside it. it is not saving the ...more >>

I noticed some strange behaviour of the datagridview: toggling the readonly property of the datagridview impacts the readonly property of its columns. This is not according to the documentation as I found it in MSDN. You can reproduce this behaviour as follows: Create a form with a datagridvi...more >>

Hi, I'm looking for advice or samples regarding the implementation of what is essentially a bound grid, most columns are bound, however there are a couple of unbound columns which are basically calculated totals (read-only) of data in the bound columns (which are read/write). I've implem...more >>

This is a re-post, I have not found anything that works - yet. I would like to set the default value of a dataviewgrid column (I have combobox columns and checkbox columns) to the previous value in the row above, I don't want all column values set to a default value. The value would stay th...more >>

I'm developing some simple user-drawn graphical controls and looking for the most efficient way of going about it. Initially I had the default VS control project which derrived from 'UserControl' with all it's baggage. Having a look up the inheritance tree it looks to me that this is designed to...more >>

Hi there, Does anyone know how to (generically) determine the currently active = form for an application using a "static" function (so I can call it from = anywhere). There is no offiical way I've been able to find so I've = written the following for starters: public static Form GetActiveFo...more >>

Hi, The datagridview control is rather confusing when it comes to editing rows. I have a datagridview control bound to a dataset (exposed through a bindingsource). The edit mode is set to edit on key stroke. The problem is that when you begin editing a cell for a given row the pencil glyph wi...more >>

Hello, How to remove a Row in a DataGridView? My DataGridView is readonly and there is no binding (Cells are build programmaticaly). I tried the following myDataGRidView.Rows.RemoveAt( rowIndex ) and myDataGRidView.Rows.Remove( row ) but an exception is always generated: "Impossible de...more >>

Hi, I have a datagridview where I perform cell validation. I do not want the user to be able to leave edit mode if the value is incorrect. The reason is that i use CellEndEdit to write the value to my hardware. I validate the value and set the cancel flag if the value is invalid. The proble...more >>

there is a line of code Form.VisibleChanged += Form.Invoke(new EventHandler(abc)); it says that right hand side returns an object and left side expects System.eventhandler and if i remove the invoke line while running i get the exception that cross thread operation is invalid how do i hand...more >>

Hello All, I am have a strange problem. I have an application which creates a set of TabPages with DataGridViews in it. The data is binding fine but I am losing all of the formating I have added to the DataGridView. Below is a snipit of the code I am using to generate the tabpages. Also...more >>

I would like to set the default value of a dataviewgrid column (or cell) to the previous value in the row above. I could do it in 2003. How would I do it in 2005 VB? Here is the code I used in 2003: Private Sub dtFishData_tblFishDataRowChanged(ByVal sender As Object, ByVal e As DsFishSurve...more >>

Hi, I am trying to use, public class FileNameConverter : StringConverter for creating a dropdown list within my dynamic property grid. Thus I have the methods GetStandardValuesSupported, GetStandardValues, and GetStandardValuesExclusive. My problem is , that my GetStandardValues, needs to g...more >>

Hi In our application we load HTML content into a Forms.WebBrowser control. The HTML page contains an ActiveX control. When the page loads the browser pops up a message stating "An ActiveX control on this page might be unsafe.." etc. This message should be suppressed! I guess I somehow have t...more >>

Hi, I would like to be able to use the autocomplete capabilities of the 2.0 textbox in a datagridviewtextboxcolumn. Is there a way to do this without creating a custom datagridview column control and celltype? If not, what would I have to override in the base classes to get this limited f...more >>

PropertyDescriptor Class has a Converter method, which if overriden, would return a TypeConverter. I was working on dynamic values for a propertygrid, so for each property all the methods of the PropertyDescriptor class were overridden. But for a dropdown list I needed the COnverter method al...more >>

Hi All, I would like to make the Tab of a Tabcontrol highlight .. similar to what happens when the Hotrack property is set and the user runs the mouse over it. Although I'd like the Tab to flash ... or any way of changing the look/color/highlight of the Tab that will catch attention. Es...more >>

create cool gradient panel with shadow effect. try this link. http://www.openwinforms.com/creating_cool_gradient_panel_gdi.html sa@openwinforms.com http://www.openwinforms.com/ ...more >>

Hi, I changed the text field bcoz of which the PropertyValueChanged event fired up. But I wanted to get back the old value of a text in a property grid, after clicking on a discard button. I already have stored the attribute and the old value in variables. What would I need to do, in orde...more >>

Hello, I'm trying to figure out how to change the border colour of the TextBox control. I can't find a property that does this. I've researched this but couldn't find a complete sample of anyone achieving this. For the Textbox control, the overriden OnPaint method is not called unless ...more >>

i am creating a windows form in .net 2003 and using a background picture for the form, the form height is 400 and width is 600,but the image is 1024*768 so the background looks clipped. Is there any way to stretch the image to 600*400 from 1024*768 and use it in the form. i am using .net 2003 ...more >>

Hi all, i have a listbox, i want that when an user press Ctrl+C copy the selecteditem object to the clipboard, I'm already doing this, the problem is that when the user press the C key the selecteditem change to next element that begins with the letter 'C', and i want to avoid that. Thanks in a...more >>

We've all seen search engines where keywords from the query are bolded in the search results. I'm trying to replicated that in a DataGridView. However, it only supports plain text. Is there any easy way to accomplish this? I did run into some stuff on the web about converting RTF to a BMP bu...more >>

Hi, I wanted to populate the property grid after getting a set of keys and values from the server onto a hashtable. Basically the name of the property should be the key and the value should be the value. But I dont know how I would iterate through a while loop, to get to do something like t...more >>

Is there a way to determine when a TableAdaptor.Fill(DataSet.Table) method has completed? I have a large database and I would like to inhibit display of the mainForm untill the Fill method completes. Regards; -- Arlyn_L...more >>

Hey guys, we have created a control and added a Toolstrip to it. Everything worked fine and we could access the toolbar buttons fine until we moved the toolstrip onto a Tab control's TabPage. Now the toolstrip buttons visible property are always returning visible = False and we cannot chang...more >>

Hello, I am facing two problems with WebBrowser control in C#: 1. How to add HTMLElement to WebBrowser.Document.Body at current mouse location. 2. How to avoid/disable alert message when changing DocumentText property of WebBrowser? Alert Mesage that i am getting goes something lik...more >>

Hello, I have serveral DataGridViews on several different TabPages on my Windows form. I have set the 'visible' property of the primary key columns to 'false' in the Edit Columns dialog box. In design-time the primary key column is hidden, but in run-time the column is shown. In one of t...more >>

Hello, How can I get the name of the tabPage that is selected? (C#) I want to have a switch statement control which code is run. Something like this. private void btnSave_Click(object sender, EventArgs e) { switch (tabControl1.TabPageName) <<< What is the c...more >>

We use the same collection for 3 controls and sometimes the trees come up with no bitmaps for the nodes. -- thanks - dave david_at_windward_dot_net http://www.windwardreports.com Cubicle Wars - http://www.windwardreports.com/film.htm ...more >>

I create a Windows Forms Control library (in C++) and put it on a form (C#). I can add a control to control library and handle its events: private void Form1_Load(object sender, EventArgs e) { Button btn = new Button(); this.ControlLibrary1.Controls.Add(btn); ...more >>

I am able to see the property sheet for a specific textbox on my report, however, when I click the event tab on the property sheet, nothing is shown. When I click the format tab, I see what I expect to see. Any hints as to why I see formats, and not events. ...more >>

Hello, in a DataGridView control I set AutoSizeColumnsMode to AllCells. As wanted the columns' widths are adjusted according to the content of the cells. But if a vertical scrollbar appears it is at the border of the display area I determined at design time and therefore is detached from the ...more >>

Hi, i want to create a control that will act as a container for other controls like textbox , images ,documents. I need also to have drag and drop to be supported in this control. can any one please help me on this. Regards Kris ...more >>

Hi I have a ListView in a tab. The listView.ShowItemToolTips is true and the items ToolTipText is also set. But, the ListView will not show any ToolTips in any listview visual style. I use VS2005 with C#. Kruno ...more >>

Is there any way to disable DataGrid refresh while adding many rows - somewhat like in the old days: http://blogs.msdn.com/oldnewthing/archive/2004/06/10/152612.aspx I'm manually adding rows to an underlying DataTable object via strings. I tried BeginLoad() but it had no effect....more >>

Hello, I'm trying to figure out how to change the border colour of the TextBox control. I can't find a property that does this. I've researched this but couldn't find a complete sample of anyone achieving this. For the Textbox control, the overriden OnPaint method is not called unless ...more >>

Hi Everybody! I just installed .Net 3 Framework on my computer and created new Windows Application (WPF) in visual studio 2005 sp1. Then tried to find WebBrowser control in Toolbox but couldn't locate it. I tried to add manually shdocvw.dll and tried other ways but I just can't find a way t...more >>