We use cookies to give you the best experience on our website. If you continue to browse, then you agree to our privacy policy and cookie policy. Image for the cookie policy date

Setting Mouse event to a specific GridTextColumn

Hi,

I have a SfDataGrid with 3 GridTextColumns.
1 of them can't be edited, the other 2 can.

Now I see that 1 of the 2 editiable GridTextColumns can only be set to 1 or 0.

I have an old code of DataGrid that can switch between 1 and 0 by a button press on the cell.
I would like to implement the same thing in SfDataGrid in order to ease the data input to the user, so he won't need to actually type 1 or 0 just press on the cell and the switch will occur, the other editiable GridTextColumn can be any positive number.

I couldn't manipulate the old code to work on SfDataGrid.

Maybe you have a sample code that works?

Thanks,

Dov.


My DataGrid code:

private void TableList_MouseLeftButtonDown( object sender, MouseButtonEventArgs e )
{                                         
    foreach( DataGridCellInfo cellInfo in TableList.SelectedCells )
    {
        // this changes the cell's content not the data item behind it
        DataGridCell gridCell = TryToFindGridCell( TableList, cellInfo );

        if( gridCell.Column.Header.ToString() == "Symbol" )
        {
            if( ( gridCell.Content as TextBlock ).Text == "1" )
            {
                ( gridCell.Content as TextBlock ).Text = "0";
            }
            else if( ( gridCell.Content as TextBlock ).Text == "0" )
            {
                ( gridCell.Content as TextBlock ).Text = "1";
            }

            ( ( ListData )TableList.Items[TableList.Items.IndexOf( TableList.CurrentItem )] ).Symbol = ( gridCell.Content as TextBlock ).Text;
        }
    }
}



        static DataGridCell TryToFindGridCell( DataGrid grid, DataGridCellInfo cellInfo )
        {
            DataGridCell result = null;
            DataGridRow row = ( DataGridRow )grid.ItemContainerGenerator.ContainerFromItem( cellInfo.Item );
            if( row != null )
            {
                int columnIndex = grid.Columns.IndexOf( cellInfo.Column );
                if( columnIndex > -1 )
                {
                    DataGridCellsPresenter presenter = GetVisualChild<DataGridCellsPresenter>( row );
                    result = presenter.ItemContainerGenerator.ContainerFromIndex( columnIndex ) as DataGridCell;
                }
            }
            return result;
        }



 static T GetVisualChild<T>( Visual parent ) where T : Visual
        {
            T child = default( T );
            int numVisuals = VisualTreeHelper.GetChildrenCount( parent );
            for( int i = 0; i < numVisuals; i++ )
            {
                Visual v = ( Visual )VisualTreeHelper.GetChild( parent, i );
                child = v as T;
                if( child == null )
                {
                    child = GetVisualChild<T>( v );
                }
                if( child != null )
                {
                    break;
                }
            }
            return child;
        }





3 Replies

GT Gnanasownthari Thirugnanam Syncfusion Team June 5, 2017 12:56 PM UTC

Hi Dov, 

Thank you for contacting Syncfusion support. 

We have analyzed your query, You can achieve your requirement “can switch between 1 and 0 by a button press on the cell in GridtextColumn” by CellTapped event as like below code example. 

C# 
this.datagrid.CellTapped += Datagrid_CellTapped;     
private void Datagrid_CellTapped(object sender, GridCellTappedEventArgs e) 
{ 
    var orderID = ((e.OriginalSender as GridCell).DataContext as OrderInfo).OrderID; 
    if(orderID == 0) 
        ((e.OriginalSender as GridCell).DataContext as OrderInfo).OrderID=1; 
    else 
        ((e.OriginalSender as GridCell).DataContext as OrderInfo).OrderID=0; 
} 

We have prepared working sample for your  requirement, you can download the same from below mentioned location. 

Sample location: 
 
Note: Make sure in your side underline property is implemented by INotifyPropertyChanged event. 
Regards, 
Gnanasownthari T. 
 



DO Dov June 5, 2017 02:48 PM UTC

Thanks.
It's working great.

Dov.


SV Srinivasan Vasu Syncfusion Team June 6, 2017 05:11 AM UTC

Hi Dov, 
  
Thanks for your update. 
  
Please let us know if you need further assitance on this. 
  
Regards, 
Srinivasan 


Loader.
Up arrow icon