How to catch datagrid's sort event?(Click one ColumnHeader)

[Jackfan]

How to catch datagrid's sort event?(Click one ColumnHeader)

[Administrator]

You can catch the click on a columnheader and avoid sorting by deriving DataGrid and overriding OnMouseUp.

public class MyDataGrid: DataGrid
{
	protected override void OnMouseUp(System.Windows.Forms.MouseEventArgs e)
	{
		Point p1 = new Point(e.X, e.Y);
		DataGrid.HitTestInfo hti = this.HitTest(p1);
		if(hti.Type != HitTestType.ColumnHeader)
			base.OnMouseUp(e);
	}
}

[Nicolas]

This works perfectly but it occurs before the sort event, and then doesn't enable to catch the selected value after the sort event. Is it an other way to proceed ?
Nico

[Thomas]

Are you trying to grab the sort events return value or are you trying to grab the value of a highlighted element in the grid?

[Nicolas]

I'm trying to grab the value of a highlighted element in the grid.
The problem is that the click event occurs before the sort event, and that the sort does not generate a currentcell_changed event.

I'have look at some MS examples "vb.net 101 samples - VB.NET - Data Access - Build a Master-Detail Windows Form' and when i sort a datagrid the rest of the form is not anymore correctly binded. So i think that the only way to proceed is to set the datagrid property sort to false, and to catch the click event on the column header, and then to manually sort the grid.

[Thomas]

Actually, there's an FAQ article on this site that deals with this issue.
Try this link:
http://www.syncfusion.com/FAQ/WinForms/FAQ_c44c.asp#q934q

That should take you to the article.

Hope that helps.

[Thomas]

Actually, there's a FAQ article on this site that deals with this issue.
Try this link:
http://www.syncfusion.com/FAQ/WinForms/FAQ_c44c.asp#q934q

That should take you to the article.

Hope that helps.

[jim]

If it's bound it's easy: take the View's ListChanged event....
You get a "reset" event in the ViewList changed event. This is the best way to catch sorting if you have a bound grid....

AddHandler dtMaster.DefaultView.ListChanged, AddressOf HandleMasterViewListChange

Protected Overrides Sub HandleMasterViewListChange(ByVal sender As Object, ByVal args As System.ComponentModel.ListChangedEventArgs)
'This is a great event: You get a "RESET" when you sort, or even delete.
'Too bad it doesn't fire when you move between rows!
If args.ListChangedType = System.ComponentModel.ListChangedType.Reset _
Or args.ListChangedType = System.ComponentModel.ListChangedType.ItemDeleted Then
'Need to refresh detail grid
FilterDetailGrid(GetCurrentMasterRow)
End If

End Sub

[SrimuruganG]

Insteed of these things Please paste the following datagrid Class and Follow the Steps, which is given below the code.

Public Class FSDataGrid
Inherits System.Windows.Forms.DataGrid

Protected Overloads Overrides Sub OnMouseUp(ByVal e As MouseEventArgs)

If (Me.HitTest(e.X, e.Y).Type <> DataGrid.HitTestType.ColumnHeader) Then
MyBase.OnMouseUp(e)
Else
MyBase.OnMouseUp(e)
MyBase.OnCurrentCellChanged(e)
End If

End Sub
End Class

Steps to Follow :

1. Paste the above code inside the Namespace.
2. Goto #Region " Windows Form Designer generated code "

there you can find the Declaration of the datagrid.

3. Insteed of System.Windows.Forms.Datagrid give the Name of the Class (Namespace).FSDatagrid.

Declare Like "Friend WithEvents DataGrid1 As Test.FSDataGrid" where - Test is Namespace.

4. Change it in the Sub InitializeComponent().

5. I hope it will work fine.