Select first row and pass ID (VB)

[Jon]

Hi,

When the grid loads or is paged or sorted - I need to have the first row selected and to be able to pass the ID of that row to a seperate details section on the same page. (The ID is taken by a data reader which populates some labels) - Is this possible please?

For selecting the row, I tried converting the SelectFirstGridRow from the WebMail demo but in VB 'OfType' was not available.

private void SelectFirstGridRow()
    {
        GridDataItem firstDataItem = RadGrid1.Items.OfType<GridDataItem>().FirstOrDefault();
        if (firstDataItem != null)
            firstDataItem.Selected = true;
    }


Private Sub SelectFirstGridRow()
    Dim firstDataItem As GridDataItem = RadGrid1.Items.OfType(Of GridDataItem)().FirstOrDefault()
    If firstDataItem <> Nothing Then
        firstDataItem.Selected = True
    End If
End Sub

Cheers, Jon

[Tsvetoslav]

Hello jon byron,

The OfType() extension method is supported both in C# and in VB.

I am sending you a small sample with a page in C# and in VB showing how to select the first item programmatically using linq expressions.

I hope this helps.

All the best,
Tsvetoslav
the Telerik team

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

[John Davis]

Tsvetoslav

When page loads I need to select first row of the grid plus get values from this first row.

I can select the first row in the code:

protected

 

void RadGrid1_PreRender(object sender, EventArgs e)

 

{

RadGrid1.MasterTableView.Items[0].Selected =

true;

 

}

BUT, how can I get values from columns in this first row?  Is it possible to get them from the grid?  Or do I have to get it from the data source independent of the grid?

Steve

[Princy]

Hi Steve,

Try out the following code to achieve the required:
c#:

protected void RadGrid1_PreRender(object sender, EventArgs e)
    {
        RadGrid1.MasterTableView.Items[0].Selected = true;
        GridDataItem dataItem = (GridDataItem)RadGrid1.MasterTableView.Items[0];
        string strtxt = dataItem["ColumnUniqueName"].Text;
    }

Thanks
Princy.

[John Davis]

It works! Thank you.