After Deleting Record from grid scroll is not working

[Shashi]

Scrolling option is not working after deleting record from a grid. Out of Range Exception Coming..any idea.

I am sending code here

protected override void OnMouseWheel(MouseEventArgs e)
{
if ((e.Delta > 0 ) && (this.Binder.CurrentPosition >0) )
{
this.Binder.CurrentPosition = this.Binder.CurrentPosition - 1;
this.ScrollCellInView(this.Binder.CurrentPosition, 0);
}
if ((e.Delta < 0 ) && (this.Binder.CurrentPosition < this.Binder.RecordCount-1) )
{
this.Binder.CurrentPosition = this.Binder.CurrentPosition + 1;
this.ScrollCellInView(this.Binder.CurrentPosition+1, 0);
}

}

Regards
shashi

[Administrator]

Hi Shashi,

You need to change the currentcell position and binder.currentPosition before delete the record from the grid. Here is a code snippet

this.gridDataBoundGrid1.Binder.EndEdit();
this.gridDataBoundGrid1.Binder.SuspendBinding() ;

int RowIndex = this.gridDataBoundGrid1.CurrentCell.RowIndex;
int ColIndex = this.gridDataBoundGrid1.CurrentCell.ColIndex;
int Position = this.gridDataBoundGrid1.Binder.CurrentPosition;

ArrayList list = this.gridDataBoundGrid1.DataSource as ArrayList;
if(list != null )
{

this.gridDataBoundGrid1.CurrentCell.MoveTo(0,0);
this.gridDataBoundGrid1.Binder.CurrentPosition = 0;
list.RemoveAt(list.Count -1 );

}
this.gridDataBoundGrid1.Binder.ResumeBinding();
this.gridDataBoundGrid1.Binder.EndEdit();
this.gridDataBoundGrid1.Refresh();
this.gridDataBoundGrid1.Focus();

this.gridDataBoundGrid1.CurrentCell.MoveTo(RowIndex , ColIndex);
this.gridDataBoundGrid1.Binder.CurrentPosition = Position;

Here is a sample.
http://www.syncfusion.com/Support/user/uploads/arraylistsource_3f0b7e16.zip

Could you please run this at your end and let me know how it goes?

Thanks for choosing Syncfusion Products.
Regards,
Haneef

[Leema]

if ((e.Delta > 0 ) && (this.Binder.CurrentPosition >0) )
{
this.Binder.CurrentPosition = this.Binder.CurrentPosition - 1;
this.ScrollCellInView(this.Binder.CurrentPosition, 0);
}
if ((e.Delta < 0 ) && (this.Binder.CurrentPosition < this.Binder.RecordCount-1) )


{
this.Binder.CurrentPosition = this.Binder.CurrentPosition + 1;
this.ScrollCellInView(this.Binder.CurrentPosition+1, 0);
}


/////////////

this.Binder.RecordCount returns only root tables recordcount so scroll comes upto that row count but there are around 150 rows.

Is there any solution...

Thanks in Advance...

[Administrator]

Hi Leema,

Please refer to the below forum thread for more details.
http://www.syncfusion.com/support/forums/message.aspx?&MessageID=52923

Best Regards,
Haneef