How to avoid Removing a record when press delete key

[Somnath]

Hi,

Please Suggest any way to avoid removing  record from gridview when press delete key;;;
Because, already  I have Delete Button to delete the record from gridview......

[Richard Slade]

Hello,

this will allow you to delete rows programatically (via your button) but not if the user tries to delete via delete key or default context menu.

this.radGridView1.AllowDeleteRow = true;
this.radGridView1.UserDeletingRow += new GridViewRowCancelEventHandler(this.radGridView1_UserDeletingRow);

private void radGridView1_UserDeletingRow(Object sender, GridViewRowCancelEventArgs e)
{
    e.Cancel = true;
}

Hope that helps
Richard

[Richard Slade]

Apologies.. this should actually be enough if you have a button that programatically deletes the rows

this.radGridView1.AllowDeleteRow = false;

Richard

[Somnath]

Thanks Richard....
This code works better....

[Eric]

Unfortunately this solution does not work with control x (ctrl-x).  As a side note I was expecting ...

gridView.MasterTemplate.AllowDeleteRow = False

... to just work.  I know, I'm too simple :).


Basically, when I use ctrl-x, I don't get the event UserDeletingRow fired, so I can't cancel it.  We've also tried capturing keypress/keydown and cancelling the event, but nothing is seeming to stop the grid from deleting the row.  We have an unbound grid.

So any other suggestions?

[Stefan]

Hi Eric,

Thank you for writing.

The Ctrl+X, Ctrl+C and Ctrl+V commands are a part of the copy/paste functionality of the grid. You can disable this functionality by setting the CopyClipboardMode property:

radGridView1.ClipboardCopyMode = Telerik.WinControls.UI.GridViewClipboardCopyMode.Disable;

I hope that you will find this information useful.
 
All the best,
Stefan
the Telerik team

[Eric]

Thanks Stefan. It is a bit odd that Telerik provides no way to intercept the Ctrl X in a way that allow us to cancel the row.  I would imagine we are not the developers who would like the ability to throw up a confirmation dialog when a user was about to delete a critical piece of data.  Or simply to allow copy but not delete and/or paste.

[Stefan]

Hello Eric,

Thank you for your suggestion.

Currently, you can stop any of the commands by disabling the whole functionality in the PreviewKeyDown event and the re-enable it in the KeyUp event of RadGridView:

void radGridView1_KeyUp(object sender, KeyEventArgs e)
{
    if (e.Modifiers == Keys.Control && e.KeyCode == Keys.X)
    {
        radGridView1.ClipboardCopyMode = Telerik.WinControls.UI.GridViewClipboardCopyMode.EnableWithoutHeaderText;
    }
}

void radGridView1_PreviewKeyDown(object sender, PreviewKeyDownEventArgs e)
{
    if (e.Modifiers == Keys.Control && e.KeyCode == Keys.X)
    {
        radGridView1.ClipboardCopyMode = Telerik.WinControls.UI.GridViewClipboardCopyMode.Disable;
    }
}

However, your suggestion seems quite reasonable and we will consider improving the functionality with ability to determine which commands are enabled/disabled. I am adding a PITS item for this request. Please follow this link, where you can add your vote for it:http://www.telerik.com/support/pits.aspx#/public/winforms/10420.

I have updated your Telerik points for this suggestion. 

Let us know if you have any other questions or suggestions.

Regards,
Stefan
the Telerik team