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Setting focus to editable cell

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GridView

This is a migrated thread and some comments may be shown as answers.

9 Answers, 1 is accepted

answered on 02 Sep 2008, 03:19 PM

With Q2 2008 SP1, the following seems to work as long as I do not BeginInit/EndInit around messing with the grid:

gridView.CurrentItem = newDataBoundItem;
... // removed code to get new row bound to item
newRow.IsCurrent = true;
gridView.Columns["MyColumn"].IsCurrent = true;
gridView.BeginEdit();

However, when the grid scrolls to the selected item, it makes it the first item in the list, even if their aren't enough items to make it necessary to scroll. For example, I have a grid with only 1 item in it. I programmatically add a row to the binding source when a button is clicked. I execute the code above to auto-select the new row and put the first cell into edit mode. The grid scrolls to make the new row the first in the visible area, making it seem like we lost the other rows. They are there if you manually scroll back up, but it's confusing. Basically, users wouldn't expect it to scroll if no scrolling is necessary (the row is already in view).

Can we get a fix to the quirky scrolling to the next release? Also, do you know of a current workaround?

answered on 08 Jan 2009, 03:44 PM

I have the following simple code in my page load event

    
             Private Sub Logdata_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load  
        
                    'test if grid is empty, add new row and place in edit mode  
        
                    Dim i As Int32 = RadGridView1.Rows.Count  
        
                    If i = 0 Then  
        
                        RadGridView1.Rows.AddNew()  
        
                        Me.RadGridView1.Rows(0).IsCurrent = True 
        
                        Me.RadGridView1.Columns(0).IsCurrent = True 
        
                        Me.RadGridView1.PerformLayout()  
        
                        Me.RadGridView1.BeginEdit()  
        
                        RadGridView1.Focus()  
        
                    End If  
        
                End Sub

A new row is added and the cell in row(0)column(0) goes into edit mode. Focus is on the grid but nothing happens when the user starts typing. Only by mouseclicking in the cell starts the cursor blinking and can the user enter data. The cell is however validated when tab is pressed after the form is loaded. Being in a production enviroment the application is intended to be as mouse free as possible.
Thanks

Armand

answered on 09 Jan 2009, 11:59 AM

Hi Armand,

Thank you for contacting us.

The call to the BeginEdit method should be made outside the Form.Load event. For example you could override the OnShown method. There is no need to call the PerformLayout method. Consider the code snippet below:

    
            Protected Overrides Sub OnShown(ByVal e As System.EventArgs) 
        
                MyBase.OnShown(e) 
        
                RadGridView1.Rows.AddNew() 
        
                Me.RadGridView1.Rows(0).IsCurrent = True 
        
                Me.RadGridView1.Columns(0).IsCurrent = True 
        
                Me.RadGridView1.BeginEdit() 
        
                RadGridView1.Focus() 
        
            End Sub

I hope this helps. Do not hesitate to contact us if you need further assistance.

Kind regards,
Jack
the Telerik team

Check out Telerik Trainer, the state of the art learning tool for Telerik products.

answered on 10 Jul 2009, 05:42 PM

We've encountered the same problem again with 8.2.0 (Q3 2008 SP1 I believe). Looking at the implementation of GridViewCellInfo.BeginEdit() (which didn't work for me on it's own) I was able to come up with something that works:

    
            GridView.GridElement.BeginUpdate(); 
        
            cell.RowInfo.IsCurrent = true; 
        
            cell.ColumnInfo.IsCurrent = true; 
        
            GridView.GridElement.EndUpdate(true); // the key for me was to pass true here (GridViewCellInfo.BeginEdit() implementation passes false) 
        
            GridView.BeginEdit();

The code needed to set focus to a particular editable cell seems to change from release to release, so this solution may not apply to the latest version. I know we shouldn't have to do this, but looking through the telerik source when things don't work helps find workarounds.

Hope this helps someone.
-Kevin

answered on 09 Jun 2010, 10:20 AM

Hi Jack,

I have the exact same problem as described in this post (Focus is on the grid but nothing happens when I start typing). I am using version 2010Q1SP2.

You wrote not to use BeginEdit in the OnLoad event of the form.

I am not sure how to achieve this in my specific case. I am using CAB/SCSF in conjunction with the Telerik CAB Enabling Kit. I open a modal Form (ControlledWorkItem) from another ControlledWorkItem. This newly opened form contains a RadGridView with a row that I want to make editable. I am currently using the OnViewReady event on the presenter which apparently is called during the OnLoad from the form...

Any help would be appreciated.