So, the RadGridView has thrown the following exception:

System.NullReferenceException occurred
  _HResult=-2147467261
  _message=Object reference not set to an instance of an object.
  HResult=-2147467261
  IsTransient=false
  Message=Object reference not set to an instance of an object.
  Source=Telerik.WinControls.GridView
  StackTrace:
       at Telerik.WinControls.UI.GridNewRowBehavior.OnMouseDownLeft(MouseEventArgs e)
  InnerException:

Break on Common Language Runtime Exceptions always stops on Application.Run(mainForm)

Clearly not much use (to me!) but I want to dig deeper.  Can I step into the grid code?  I'm sure Reflector VS Addin had functionality to step in to referenced assemblies.  Might be a good one for the Telerik Just Decompile.

Are debugging symbols available for the RadGridView?  In this instance I have my own custom editor which I suspect overriding of value is affecting the grid in someway.

Thanks

Andez

Hello,
I'm adding a Toolwindow witha aRadlistview inside to a dockmanager, I wish that at load the toolwindow is as the screen I've attached

the code that creates the grid is 

Hello,

 I have a datetimepicker as shown below

 



As you can see, when the screen is displayed it is already populated with today’s date. I want to be able to let the user select a date as shown, but if they were to only pick a date for say, the first one, all of the other ones are populated anyway.

What I want to do is display the calendar as shown, but not have the field be populated until they choose a date. It is pre-populated because the value of the property has today's date

 How do I do that?

Hi, im searching the Close/save event on closing the edit dialog from a appointment.

Anyone a idea how to get this?

I have there a lot of events like this:

adScheduler1_AppointmentDeleted/Adding/Added/Moving/Deleted, but not changed :(

Thank you in advance for any help.
Volkan

Hi,
How can I scroll the timeline programmatically.  When I click on an item in the list I want to make the  item in the timeline visible.
Thanks,
John

Hi, I have a RadGridView with a GridViewMaskBoxColumn that I want to use to allow the user to be able to enter any text up to 16 characters.

I have the following settings at the moment for the GridViewMaskBoxColumn:

MaskType = Standard
Mask = &&&&&&&&&&&&&&&& 

When I double click on a cell I see that underscores are used to indicate spaces. That's fine, and I'm able to edit the data. However, the underscores are persisting in my data when I move my cursor to a different field (i.e. when I'm done editing).  In other words:

Data before editing: "12345678        "
View of data while editing: "12345678________"  (underscores used to indicate spaces)
Data after editing: "12345678________"  (underscores have become part of the data).

Is there a way to prevent this? I don't want the underscores to be in my data after I'm done editing it.

Thanks for any help,

-Lou

Hi Team,


             Can i get a basic example using db for a bandedgridview in windows form application

How can I filter Ganttview programmatically?  Thanks,  John

Hello Telerik

I have a little issue on adding row to a gridview using a objectquery(Of T) as datasource. The gridview is groupped on two level (fixed by design). Rows are added programmatically on a button click event with the following code.


The issue is that's the EnsureVisible do not expend the good group (on the yellow one on the picture).  If the "good" group is expended before the sub, all is goning fine (EnsureVisible do not expand the wrong group).

I have a radGridView (2014.2.715.40) component having among others 2 checkbox columns.  One is named "IsConcilie" and the other one is "IsRetenu".  For each row, when 1 of these columns is true, we can't set the other one to true.  Only one of these 2 columns may be true at a time.  If the user tries to put the second to true, he is advised.  The radGridView is named "MasterTemplate".

Because I want to be able to cancel the action, I added this event handler:
this.MasterTemplate.ValueChanging += new ValueChangingEventHandler(MasterTemplate_ValueChanging);

Then I coded the following:

void MasterTemplate_ValueChanging(object sender, ValueChangingEventArgs e)
{
    GridDataCellElement ce = this.MasterTemplate.CurrentCell;
    if (ce.Name == "IsConcilie")
    {
           if (e.NewValue.Equals(false)) return;
           if (this.MasterTemplate.CurrentRow.Cells["IsRetenu"].Equals(true))
           {
                MessageBox.Show( "You cannot verify a retained cheque", this.Text, MessageBoxButtons.OK, MessageBoxIcon.Hand);
                e.Cancel = true;
            }
     }
     if (ce.Name == "IsRetenu")
     {
          if (e.NewValue.Equals(false)) return;
          if (this.MasterTemplate.CurrentRow.Cells["IsConcilie"].Equals(true))
          {
               MessageBox.Show("You cannot retain a verified cheque", this.Text, MessageBoxButtons.OK, MessageBoxIcon.Hand);
               e.Cancel = true;
           }
      }
}

Unfortunately, whenever we click one of these checkboxes, the event is not fired.  What's wrong?

Thanks.