Disable sorting on left mouse click

[Patryk]

Hello
I want to disable sorting on left mouse click on header cell, but still enable on context menu click.
How can I achieve this?

[Patryk]

I found a solution:

radGridView1.GridBehavior = new CustomGridBehavior();

private class CustomGridBehavior : BaseGridBehavior
{
      public override bool OnMouseDown(MouseEventArgs e)
      {
          var cell = this.GridControl.ElementTree.GetElementAtPoint(e.Location) as GridHeaderCellElement;
          if (cell != null && e.Button == MouseButtons.Left)
          {
              return false;
          }
          return base.OnMouseDown(e);
      }
}

[Stefan]

Hello Patryk,

I can confirm that this is the recommended way to achieve the desired functionality. Should you have any other questions do not hesitate to contact us.

Regards,
Stefan
Telerik

[Patryk]

It should be:

private class CustomGridBehavior : BaseGridBehavior
{
    private bool _isSort;

    public override bool OnMouseDown(MouseEventArgs e)
    {
        var cell = this.GridControl.ElementTree.GetElementAtPoint(e.Location) as GridHeaderCellElement;
        if (cell != null && e.Button == MouseButtons.Left)
        {
            _isSort = true;
        }
        return base.OnMouseDown(e);
    }

    public override bool OnMouseMove(MouseEventArgs e)
    {
        _isSort = false;
        return base.OnMouseMove(e);
    }

    public override bool OnMouseUp(MouseEventArgs e)
    {
        var cell = this.GridControl.ElementTree.GetElementAtPoint(e.Location) as GridHeaderCellElement;
        if (cell != null && e.Button == MouseButtons.Left && _isSort)
        {
            return false;
        }
        return base.OnMouseUp(e);
    }
}

My previous version broke grouping, column resizing and column order changing.

[Dess | Tech Support Engineer, Principal]

Hello Patryk,

Thank you for writing back and for the shared solution.

In order to change the default BaseGridBehavior, the recommended approach is to implement your own one just like you did. Thus you can handle all mouse or key inputs and change their behaviour if it is necessary. Should you have further questions, I would be glad to help.

Regards,
Desislava
Telerik

[Patryk]

There is one broken thing with my approach, check this scenario:
1. left-click on header - nothing
2. left-click on excel-like filtering button on header - starts sorting
How can I get rid of this unexpected behaviour?

[Dess | Tech Support Engineer, Principal]

Hello Patryk,

Thank you for contacting Telerik Support.

I have not succeeded to reproduce the second scenario described in your previous post: left-click on excel-like filtering button on header starts sorting - it just opens Filtering popup on my end. Could you please specify what are the exact steps you perform to enable sorting in this scenario? And which version do you use? A sample project will be really appreciated. Thank you in advance.

Regards,
Desislava
Telerik