Implementing a custom command column

[anthony]

Hello,

I want to add a custom command column in my grid. It looks great so far but I am having trouble applying a row-specific parameter to the button. Can anyone assist me on this? 

My C# ItemSource looks like: 

public class AttendeeLookupViewModel
{
       public string Id { get; set; }
       public string FirstName { get; set; }
       public string LastName { get; set; }
}

My grid column XAML looks like: 

<grid:DataGridTemplateColumn CanUserEdit="False">
    <grid:DataGridTemplateColumn.CellContentTemplate>
        <DataTemplate>
            <Button Content="VIEW">
                <Button.Command>
                    <models:CustomGridCommand />
                </Button.Command>
            </Button>
        </DataTemplate>
    </grid:DataGridTemplateColumn.CellContentTemplate>
</grid:DataGridTemplateColumn>

My CustomGridCommand looks like:

public class CustomGridCommand : DataGridCommand
    {
        public CustomGridCommand()
        {
            this.Id = CommandId.CellTap;
        }

        public override bool CanExecute(object parameter)
        {
            DataGridCellInfo context = parameter as DataGridCellInfo;
            // put your custom logic here
            return true;
        }

        public override void Execute(object parameter)
        {
            DataGridCellInfo context = parameter as DataGridCellInfo;
            // put your custom logic here               
        }
    }

Any help is much appreciated!

[Ivaylo Gergov]

Hi,

Thank you for contacting us.

The RadDataGrid's commands are designed to allow different aspects of the RadDataGrid control’s behavior to be handled and/or completely overridden. These commands should be assigned in the RadDataGrid.Commands collection. For example, the CustomGridCommand that you have implemented will trigger after a CellTap has been made. They should not be assigned to custom UI elements.

Regards,
Ivaylo Gergov
Telerik

 

 

[anthony]

Thanks so much for your reply, That makes sense and I now have the cell tap working, but the command is applied to every single cell in the grid. Is there any way to get only one column to respond to the custom command or is that a waste of time?

[anthony]

Ok, so I sorted this by adding a Name value to the column itself and responding accordingly in my Execute function.