Error on selecting a row in radgrid

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Hi,i have a radgrid whereby on selected index changed ,i show another radgrid.The problem is that i get the following error that

C#

Index was out of range. Must be non-negative and less than the size of the collection.
Parameter name: index

Below is the line am getting the error.Sometimes i dont get the error but now the error appears everytime,Below is the code:

C#

Line 35:         {
Line 36: 
Line 37:             GridDataItem selectedRow = RadgridStudents.SelectedItems[0] as GridDataItem;

Thats the line am getting the error

Posted 20-Jan-14 0:39am

Member 10398773

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Comments

JoCodes 20-Jan-14 6:42am

Check whether the Radgrid has rows before using selecteditem.

Member 10398773 20-Jan-14 6:50am

Yes,when i debug,it brings a count of 1

JoCodes 20-Jan-14 6:57am

try this in the selectedindex change event

foreach (GridDataItem item in grid.SelectedItems)
{

}

Member 10398773 20-Jan-14 7:12am

Hi,can yu direct me how to apply this please?

Member 10434230 20-Jan-14 8:15am

GridDataItem selectedRow;
foreach (GridDataItem item in RadgridStudents.SelectedItems)
{
selectedRow = item as GridDataItem;
}

Whereas, can you again check whether you are getting selected count as 1, otherwise you would not have received this error.

JoCodes 20-Jan-14 9:17am

void grid_SelectedIndexChanged(object sender, EventArgs e)
{
foreach (GridDataItem item in grid.SelectedItems)
{
//get the item value using column name
}
}

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JoCodes · Accepted Answer · 2014-01-20T03:40:00

Try

C#

void RadgridStudents_SelectedIndexChanged(object sender, EventArgs e)
{
  foreach (GridDataItem item in RadgridStudents.SelectedItems)
  {
    //change the code here according to the value you need
var value = item["name"].Text;
  }
}

or

void RadgridStudents_SelectedIndexChanged(object sender, EventArgs e)
{
 if (RadgridStudents.SelectedItems.Count > 0)
 {
 //change the code here according to the value you need
    var value = RadgridStudents.SelectedValues["Columnname"].ToString();

 }
}