Hi,

I have a relatively simple use for the RichTextBox. I'm using it to display log messages in an application.

I will have two types of messages: Information and Errors. I would like to display the error string in red while the information in black.

How can I change the font color as it is being inserted to the box?

Also, can the font and size be changed at design time? I have the standard font and size (8.25) but it looks much bigger than a standard RadTextBox. Also there seems to be some sort of padding above it as there is a large space between lines (something like a line height in HTML).

Thanks in advance.

Hello everybody

I've problem with radgridview.. Can i set auto collapse group in radgridview? Because i set the properties "AutoExpandGroup" to "False" but this code doesn't happen.. Can you give me another solution?

Cheers..

I'm currently developing a Word 2010 VSTO Document-Level Add-In that has to do extended operations on the open document. As these operations can take some seconds to complete, I'd like to indicate this to the users (so they don't get nervous and start clicking wildly around...). 

I've used the Telerik WPF RadBusyIndicator in a WPF project some time ago and really liked how easy it was to implement (and didn't obscure my code as well). It would be great if I could create the same effect using Telerik WinForms/WPF components.

Currently, the main thread directly operates on the document. I have not much experience in threaded programming, but I'd like to implement a clean and reusable solution that does not clutter the important part of my code. 

cheers
Nicolas

Hello
I used a datatable for fill Grid.
I add row in datatable in my Code and I want to show  changes in my Grid.
for this work I used "dt.AcceptChanges()".
but i need used "dt.GetChanges()".
Because I use "dt.AcceptChanges() ", " dt.GetChanges()" is empty.
Now how do I use "dt.GetChanges()".

I have a large set of data with which server-side paging is implemented.  I need to requery the data source any time the GridView's filter is changed by the user.  The problem lies in the fact that rebinding the DataSource inside any of the FilterChanged, FilterChanging, or FilterExpressionChanged events of the grid causes a null reference exception at the application level.

To work around this, I have found the following code which will correctly refresh the data source after a filter change has been finalized.


While the data source now refreshed automatically on a text change, it still did not refresh on a filter type change (ie. "Contains" to "Does not contain").  I tried calling RequeryGridData() in the closed event of the filter popup menu as follows.


This still caused a null reference exception.  I wondered what would happen if I delayed the datasource refresh until after the close event had finished and found myself with this code.


Which, as I suspected, works great.  No exceptions occurred.

My question is: Is there a cleaner way of detecting the filter change and performing a datasource change?  Perhaps this functionality is not the intended use of the GridView's filter controls, in which case I'll settle for the solution (read: hack) I've managed to come up with, but hopefully there is a better way to handle this.

Thank you for your time.

Dear Ivan Petrov

thanks a lot for your answer it was very useful, now I have an other problem, I want to change alignment to right, I searched and found a suggest, but it wasn't any useful for me, and I want to get color to get rectangle, but argb color's property is read only and I can't to do this and totally I want to change properties in the print for example : get page border, get alignment, get color, etc. but I can't do it.
would you can help me.
best regard.
Maryam

Hi
I used PropertyGrid . I defined item that is type of boolean and want to get value change and store this value in datatable 
i can't find property value in this event and don't know how to use GetValue(radProperty) .
How can do this ?

Hi,
Using a radtreeview with an access db with my data in a recursiv datatable, I would like to go through each element of the radtreeview to retrieve the displaymember and do some additional processes. Something like:
foreach(.... )
{
Parent -> go through each child of it -> if there are grandchildren-> go through each grandchild of child...
get_the_displayname_and_print_it()
.... do whatever...
}
and so on.
Can someone give me some support in this issue?
Thanks
Karl

 

 

Hi.
I used RadDropDownListEditor  in my gridview.when press tab Key and enter it,and start write with keyboard
i have a problem.but when enter this cell with Mouse I don't have any problem.
I used RadDropDownListEditor  in ver2011 and don't have any problem.
but now Use ver2012.this problem is exist.


private void GrdCheck_CellBeginEdit(object sender, GridViewCellCancelEventArgs e)

 

{

 

 

    if (GrdCheck.CurrentColumn is GridViewComboBoxColumn)

 

    {

 

 

        if (GrdCheck.CurrentColumn.Name.ToString() == "BankRef")

 

            {

 

 

            RadDropDownListEditor comboBoxEditor = this.GrdCheck.ActiveEditor as RadDropDownListEditor;

 

 

 

            if (comboBoxEditor != null)

 

            {

                comboBoxEditor.EditorElement.StretchVertically =

 

false;

 

                comboBoxEditor.DropDownStyle = Telerik.WinControls.

 

RadDropDownStyle.DropDownList;

 

                comboBoxEditor.DropDownSizingMode =

 

SizingMode.UpDownAndRightBottom;

 

            }
            }
    

 

}

 

}

 

 

 

private void GrdCheck_CellEditorInitialized(object sender, GridViewCellEventArgs e)

 

{

 

 

    if (GrdCheck.CurrentColumn.Name.ToString() == "BankRef")

 

    {

 

 

        RadDropDownListEditor cmb = GrdCheck.ActiveEditor as RadDropDownListEditor;

 

 

 

        if (cmb != null)

 

        {

            ((

 

RadDropDownListEditorElement)(cmb).EditorElement).DisplayMember = "Descr";

 

            ((

 

RadDropDownListEditorElement)(cmb).EditorElement).ValueMember = "Id";

 

　

            ((

 

RadDropDownListEditorElement)(cmb).EditorElement).DataSource =DtBankCheck;

 

            ((

 

RadDropDownListEditorElement)(cmb).EditorElement).SelectedIndex = -1;

 

            ((

 

RadDropDownListEditorElement)(cmb).EditorElement).ShowPopup();

 

        }

    }
}

Hi:

I found a way to disable wimform's close button on codeproject

http://www.codeproject.com/KB/cs/DisableClose.aspx

but it's not working  on R.A.D form (Q1 2009 SP1)  with vista theme.

can you provide a way to disable close button of R.A.D form?

thanks.