Hi,

How to change the GridViewHeaderCellElement Mouse hover Color through code Instead of using style builder. Please help on this very urgent.

I have just recently upgraded a winform .net solution to the Q2 2012 sp1 version.  I am now receive this error on many different gridviews on many different forms.  I cannot reproduce the error on every machine, or in every instance.  But it is happening with high frequency.  Anyone have any ideas on this?

System.NullReferenceException: Object reference not set to an instance of an object.
at Telerik.WinControls.UI.CellAccessibleObject.owner_CellBeginEdit(Object sender, GridViewCellCancelEventArgs e)
at Telerik.WinControls.UI.GridViewCellCancelEventHandler.Invoke(Object sender, GridViewCellCancelEventArgs e)
at Telerik.WinControls.UI.RadGridView.OnCellBeginEdit(Object sender, GridViewCellCancelEventArgs e)
at Telerik.WinControls.UI.EventDispatcher.RaiseEvent[T](Object eventKey, Object sender, T args)
at Telerik.WinControls.UI.GridViewEditManager.BeginEdit()
at Telerik.WinControls.UI.GridRowBehavior.OnMouseUpLeft(MouseEventArgs e)
at Telerik.WinControls.UI.GridRowBehavior.OnMouseUp(MouseEventArgs e)
at Telerik.WinControls.UI.BaseGridBehavior.OnMouseUp(MouseEventArgs e)
at Telerik.WinControls.UI.RadGridView.OnMouseUp(MouseEventArgs e)
at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
at System.Windows.Forms.Control.WndProc(Message& m)
at System.Windows.Forms.ScrollableControl.WndProc(Message& m)
at Telerik.WinControls.RadControl.WndProc(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)   at Telerik.WinControls.UI.CellAccessibleObject.owner_CellBeginEdit(Object sender, GridViewCellCancelEventArgs e)
at Telerik.WinControls.UI.GridViewCellCancelEventHandler.Invoke(Object sender, GridViewCellCancelEventArgs e)
at Telerik.WinControls.UI.RadGridView.OnCellBeginEdit(Object sender, GridViewCellCancelEventArgs e)
at Telerik.WinControls.UI.EventDispatcher.RaiseEvent[T](Object eventKey, Object sender, T args)
at Telerik.WinControls.UI.GridViewEditManager.BeginEdit()
at Telerik.WinControls.UI.GridRowBehavior.OnMouseUpLeft(MouseEventArgs e)
at Telerik.WinControls.UI.GridRowBehavior.OnMouseUp(MouseEventArgs e)
at Telerik.WinControls.UI.BaseGridBehavior.OnMouseUp(MouseEventArgs e)
at Telerik.WinControls.UI.RadGridView.OnMouseUp(MouseEventArgs e)
at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
at System.Windows.Forms.Control.WndProc(Message& m)
at System.Windows.Forms.ScrollableControl.WndProc(Message& m)
at Telerik.WinControls.RadControl.WndProc(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

After insert text 
 radRichTextBox1.Document = new RadDocument();
            radRichTextBox1.Document.Insert(radListControl2.SelectedItem.ToString(), radRichTextBox1.Document.Style)

the selection go end of text, how to select the start text?

i added the combobox column in gridview. Have to load the combobox values based on the criteria. That criteria value comes from another cell of the grid.Please help me on this.(urgent)
Have to bind different datasource for each row combobox column in the grid.

thanks for support.

Hi,

I think I found a bug in the RadForm control. The form resizes when I compile.

Steps to reproduce:
- Create a new project
- Create a new RadForm Form1
- Create another RadForm Form2, which inherits from Form1
- Set the FormBorderStyle of Form2 to None
- Add, for example, a PictureBox to the bottomright of Form2
- Compile and you will see that the size of the form changes

How to solve this? Thank you in advance.

Hi,

I have added a toolwindow in raddock. I have to perform some additional functionalities on click to close button ,Please let me know which event is fired when close button is clicked for tool window (in docked state and floating state both)


Thanks In advance !!!

Regards,

Anjali Bansal

Hello,

I installed new Winforms 2012 Q2 SP1 package and i have found the following problem.
Texts of documentTabs are misplaced in metro style, when i order them to left.
I attached the error screens.

Could you help me?

Thank you

Csaba

Like a text box which is disabled but the data is clearly readable so regular while or dark gray on white background.  Have not been able to change the colors since the text box is disabled.  Just basically want to kill the editing possibility but keep the data readable.

I have added ComboBoxcolumn to the grid, can not see any place to set the datasource for the list of items to populate the list.  The value selected comes from the data source which supplies the whole grid for data.  Have looked every where and can not see how to set the datasource for this column, assuming the selection from the list will be made based on match for the data column.

Hello,

I hope the title doesn't confuse you.
I'm using the Excel like filtering in my grid.

When I filter my grid by selecting a filter from column A, the filter values from column B will still show all values from my full list.
Isn't it possible that the filter values only reflect the values that are visible in the grid?

example:
lets say you have these rows with 2 columns 

A  Frank
A  Frank
A  John
B  Alison
C  Jim

If I filter my rows by selecting A & B from the Excel - like - Filter and press OK
Column 2 will still allow me to Filter on Jim which isn't even visible anymore in the grid.

Any solution for this ?