RadGridView Filter Default Selection

[Ilkka]

Hi,

I have question about the filter default selection. Now there is no filter for gridview rows when the Form is opened (all checkboxes are checked for each filter so there is no filter)

I have read that on the WPF side there is FilterOperatorsLoading event where you can change this default filter selection but on WinForms side does not have that event?

So what is the correct way to access/modify filters before the form/gridview is shown for the first time?

I am using VB.NET, Thanks!

[Stefan]

Hi llkka,

Thank you for writing.

To filter RadGridView for WinForms, you just need to add the desired FilterDescriptors to it. A sample of this is available in our online documentation: http://www.telerik.com/help/winforms/gridview-filtering-setting-filters-programmatically-simple-descriptors.html.

I hope this helps.
 
Regards,
Stefan
the Telerik team

[Ilkka]

Hi,

What is the correct place to create FilterDescriptors? I have tried to do it in Form Load eventhandler or Form Shown eventhandler but I can't get it working.

Could you provide an exanple code (Winforms) where radgridview filter selection are set before the Form/radgridview is loaded or shown?
My radgridview Datasource is Datatable and it is filled in Form Load method.

Br,
Ilkka

[Stefan]

I sure can. Here you are:

Imports Telerik.WinControls.Data

Public Class Form1

    Private Sub Form1_Load(sender As System.Object, e As System.EventArgs) Handles MyBase.Load
        BindGrid()

        RadGridView1.EnableFiltering = True

        Dim filter As New FilterDescriptor()
        filter.PropertyName = "ID"
        filter.[Operator] = FilterOperator.IsGreaterThan
        filter.Value = 3
        filter.IsFilterEditor = True
        Me.RadGridView1.FilterDescriptors.Add(filter)

        Dim filter2 As New FilterDescriptor()
        filter2.PropertyName = "Bool"
        filter2.[Operator] = FilterOperator.IsEqualTo
        filter2.Value = True
        filter2.IsFilterEditor = True
        Me.RadGridView1.FilterDescriptors.Add(filter2)


    End Sub
    Private Sub BindGrid()
        Dim r As New Random()
        Dim table As New DataTable()
        table.Columns.Add("ID", GetType(Integer))
        table.Columns.Add("Name", GetType(String))
        table.Columns.Add("Bool", GetType(Boolean))

        For i As Integer = 0 To 9
            table.Rows.Add(i, "Row " & i, If(r.[Next](10) > 5, True, False))
        Next

        Me.RadGridView1.DataSource = table

    End Sub
End Class

 

Kind regards,
Stefan
the Telerik team