Select First Row in UI for WinForms GridView

Xavier Soares

39 posts

Member since:
Jun 2008

Posted 12 Jun 2008 Link to this post

Hello,

How can I make the first row of a RadgridView selected by default, if there's any?

Thank You.
LM

Nikolay

Admin

1805 posts

Posted 13 Jun 2008 Link to this post

Hi Luis,

Actually, the first row of RadGridView is selected by default. Still, you can use the code below to programmatically select rows:

    
            this.radGridView1.Rows[0].IsSelected = true;

Feel free to contact me if you have further questions.

Kind regards,
Nikolay
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Marco

104 posts

Member since:
Apr 2011

Posted 04 Dec 2014 Link to this post

Sorry for the ressurection of this topic but I need some precision about it.

The first row of a RadGridView is certainly selected by default when the databinding is done.

But if you have set some sort descriptor before (on design as an exemple), it look like the selection of the first row is done before sorting. So the "first selected row" move in a random place if the datasource is not sorted the same way as your descriptor before binding.

I don't think it's a good idea to rely on the fact that your datasource order is the same of the grid because you could be sure that one day somebody will change only one of them and the random selected row effect will come back.

What's the position of Telerik on this behavior ?

Stefan

Admin

2911 posts

Posted 05 Dec 2014 Link to this post

Hello Marco,

RadGridView's CurrentRow will be set to the row according to the form's CurrencyManager's Position property. So, when you assign a DataSource to the grid, the Form's CurrencyManager will know about this source, and its Position defaults to 0. Then, when you sort the grid, this Position (and the grid's CurrentRow) is not changed, which is desired and expected.

However, you can easily change the CurrentRow, by simply setting this property of the grid to any of its rows. For example in your case you can use the DataBindingComplete event:

void radGridView1_DataBindingComplete(object sender, GridViewBindingCompleteEventArgs e)

{

radGridView1.CurrentRow = radGridView1.Rows[radGridView1.Rows.Count - 1];

}

I hope that you find this information useful. Should you have any other questions, do not hesitate to contact us.

Regards,
Stefan
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Marco

104 posts

Member since:
Apr 2011

Posted 05 Dec 2014 in reply to Stefan Link to this post

Thanks for this explanation Stefan.

Yaroslav

3 posts

Member since:
Nov 2016

Posted 29 Jan Link to this post

Hello

How set NULL row by default on DataBinding?

P/S

found only one option

private void MasterTemplate_CurrentRowChanged(object sender, CurrentRowChangedEventArgs e)
{
if (this.dataSourceChanging)
return;

Nadya

Admin

503 posts

Posted 29 Jan Link to this post

Hello, Yaroslav,

If you do not want to have a current row, you could set the CurrentRow property to null just after binding the grid:

this.radGridView1.CurrentRow = null;

I hope this helps. If you have other questions please let me know.

Regards,
Nadya
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Yaroslav

3 posts

Member since:
Nov 2016

Posted 29 Jan in reply to Nadya Link to this post

No - for my need need default NULL!

Yaroslav

3 posts

Member since:
Nov 2016

Posted 29 Jan in reply to Yaroslav Link to this post

After - DataBindingComplete

GridView - set First row

"this is complete nonsense"

db.png

Nadya

Admin

503 posts

Posted 03 Feb Link to this post

Hello, Yaroslav,

If I understand you correctly you don't want the current row to change. In order to prevent the current row from changing you can use the CurrentRowChanging event that fires right before the current row is about to change and cancel it:

this.radGridView1.CurrentRowChanging += this.RadGridView1_CurrentRowChanging;
private void RadGridView1_CurrentRowChanging(object sender, CurrentRowChangingEventArgs e)
{
   e.Cancel = true;
}

Let me know if you have other questions.

Regards,
Nadya
Progress Telerik

Virtual Classroom, the free self-paced technical training that gets you up to speed with Telerik and Kendo UI products quickly just got a fresh new look + new and improved content including a brand new Blazor course! Check it out at https://learn.telerik.com/.