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Delete Selected Rows

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GridView
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Dan
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Dan asked on 23 Jul 2008, 10:20 AM
Hi,
Prob a simple question
Is there an option for deleting selected rows via code
Something like "Grid.SelectedRows.Delete"

If not Can you show me how plz.

Thanks in advance.

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Julian Benkov
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answered on 25 Jul 2008, 08:54 AM
Hi Dan,

You can use following code snippet:

private void boundRadButton_Click(object sender, EventArgs e) 
    if (this.radGridView1.SelectedRows.Count > 0) 
    { 
        GridViewDataRowInfo[] rows = new GridViewDataRowInfo[this.radGridView1.SelectedRows.Count]; 
        this.radGridView1.SelectedRows.CopyTo(rows, 0); 
 
        this.radGridView1.GridElement.BeginUpdate(); 
 
        for (int i = 0; i < rows.Length; i++) 
        { 
            rows[i].Delete(); 
        } 
 
        this.radGridView1.GridElement.EndUpdate(); 
    } 

I hope this helps. Don't hesitate to write us back if you have other questions.

Sincerely yours,
Julian Benkov
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Mark
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answered on 05 Dec 2008, 04:41 PM
Delete is not an available method in GridViewDataRowInfo[] for Q2.  What suggestions do you have for Q2?  Upgrading is not an option.
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Julian Benkov
Telerik team
answered on 08 Dec 2008, 08:25 AM
Hello Mark,

Sorry for my omission. You can use the following snippet:

private void boundRadButton_Click(object sender, EventArgs e)  
{  
    if (this.radGridView1.SelectedRows.Count > 0)  
    {  
        GridViewDataRowInfo[] rows = new GridViewDataRowInfo[this.radGridView1.SelectedRows.Count];  
        this.radGridView1.SelectedRows.CopyTo(rows, 0);  
  
        this.radGridView1.GridElement.BeginUpdate();  
  
        for (int i = 0; i < rows.Length; i++)  
        {  
            this.radGridView1.Rows.Remove(rows[i]); 
        }  
  
        this.radGridView1.GridElement.EndUpdate();  
    }  
}  


Sincerely yours,
Julian Benkov
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Richard Slade
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answered on 05 Jun 2009, 02:17 PM
I can't see how this code snippet will work, as it appears to delete the first couple of rows in the GridView and NOT the selected rows.

I know this post is for 2008 Q2 (?) and I'm using 2009 Q1.

What I'm trying to achieve is to delete all of the selected rows from a data bound GridView.

Regards.
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Victor
Telerik team
answered on 05 Jun 2009, 05:02 PM
Hello Richard Slade,

Thank you for your question.

The snippet copies the selected rows to an array and then removes them from RadGridView one by one. May be you are after a different behavior? What do you mean by "it appears to delete the first couple of rows"?
 

Best wishes,
Victor
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Sunil
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answered on 24 Sep 2009, 05:00 AM
Hi I am using version Q3 2008 win control library.
I am using this code in my form. It sometimes deleted the rows from the radGridView but sometime not.....
Do I need to make special settings in design time or runt time?
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Sunil
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answered on 24 Sep 2009, 07:02 AM
In continuation to my previous post..
I am able to delete the selected radGridview rows when i drop the radGridview in windows form. But when i drop it on the System.Windows.Forms.TabControl, selected rows are not deleted.
Thanx in advance...


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Victor
Telerik team
answered on 29 Sep 2009, 01:08 PM
Hello Sunil,

Thank you for writing. I tested the described behavior with the latest build and it behaves correctly. You can upgrade to the latest version or if this is not feasible please send a sample application so that I may debug it and provide a solution. I am looking forward to your reply.

Kind regards,
Victor
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Gh Reza
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answered on 11 Apr 2020, 12:45 PM

Hi

I have  problem in deleting row in data bound mode. i do bind gridView to bindingSource like: 

radGridView.datasource = bindingSource1;

When i delete a row at runtime , the selected row remove from binding source. in UserDeletingRow event i change the selected row state to Deleted state like : 

  row.Cells["EntityState"].Value = EntityState.Deleted;

finally i send bindingsource list to my entityframework repository for CRUD operations but my selected row in binding list deleted automatically and i lost that row must delete and  finally the row never physically delete from database.

please help me.

thank you

 

 

 

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Dess | Tech Support Engineer, Principal
Telerik team
answered on 13 Apr 2020, 12:10 PM

Hello, Reza,

Please refer to the following help article demonstrating how to update the database once a row gets added/updated or deleted: https://docs.telerik.com/devtools/winforms/controls/gridview/populating-with-data/updating-the-database-with-ado.net 

I hope this information helps. 

Regards,
Dess | Tech Support Engineer, Sr.
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Dan
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Julian Benkov
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Mark
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Richard Slade
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Victor
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Sunil
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Gh Reza
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Dess | Tech Support Engineer, Principal
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