[Solved] show

[newbie]

I am using custom filtering in  my grid using the filter template as shown here:
http://www.telerik.com/help/aspnet-ajax/radgridfiltertemplate.html

I have a radcombobox in my fliter template.
the issue I have is once i select something in the dropdown and set the filter expression...the gid filters the recordsbut in the display my combobox does not show the selected value.
it defaults to the first item.

How can i retain the combobox selected value?

my grid column declaration:

<

telerik:GridTemplateColumn HeaderText="Name" UniqueName="RelType" HeaderStyle-Width="25%"

 

 

DataField="RelationType">

 

 

<FilterTemplate>

 

 

<telerik:RadComboBox ID="RadComboBoxRelatedContacts" runat="server" AutoPostBack="true" OnSelectedIndexChanged="RadComboBoxRelatedContacts_SelectedIndexChanged">

 

 

<Items>

 

 

<telerik:RadComboBoxItem Text="Family" Value="Family" />

 

 

<telerik:RadComboBoxItem Text="Business" Value="Business" />

 

 

<telerik:RadComboBoxItem Text="Personal" Value="Personal" />

 

</Items>

 

 

</telerik:RadComboBox>

 

 

</FilterTemplate>

 

 

<ItemTemplate><asp:Label ID="Label1" runat="server" CssClass="label" Visible='<%# !Convert.IsDBNull(Eval("Relationship")) %>'><br /><b>Relationship</b>:&nbsp;</asp:Label><%# Eval("Relationship")%>

 

 

<asp:Label ID="Label2" runat="server" CssClass="label" Visible='<%# !Convert.IsDBNull(Eval("RelationType")) %>'><br /><b>Rel. Type</b>:&nbsp;</asp:Label><%# Eval("RelationType")%>

 

 

</ItemTemplate>

 

 

</telerik:GridTemplateColumn>

aspx.cs

protected

void RadComboBoxRelatedContacts_SelectedIndexChanged(object sender, RadComboBoxSelectedIndexChangedEventArgs e)

 

{

 

RadComboBox list = (RadComboBox)sender;

 

 

string filterExpression = "([RelationType] = '" + list.SelectedValue + "')";

 

 

GridFilteringItem item = (GridFilteringItem)list.NamingContainer;

 

 

RadGrid gridKeyRel = (RadGrid)item.NamingContainer.NamingContainer.NamingContainer;

 

gridKeyRel.MasterTableView.FilterExpression = filterExpression;

gridKeyRel.MasterTableView.Rebind(); 

}

[Princy]

Hello,

You can save the selected value of the combobox in the SelectedindexChanged event of the combobox to a global variable and in the PreRender event of the nested grid set that item in the combobox as selected.Check out the code below to understand better:
cs:

string strtxt;
protected void RadComboBoxRelatedContacts_SelectedIndexChanged(object sender, RadComboBoxSelectedIndexChangedEventArgs e)
{
  RadComboBox list = (RadComboBox)sender;
  strtxt = list.SelectedItem.Text;
  string filterExpression = "([RelationType] = '" + list.SelectedValue + "')";
  GridFilteringItem item = (GridFilteringItem)list.NamingContainer;
  RadGrid gridKeyRel = (RadGrid)item.OwnerTableView.NamingContainer;
  gridKeyRel.MasterTableView.FilterExpression = filterExpression;
  gridKeyRel.MasterTableView.Rebind();

}

protected void GridKeyRel_PreRender(object sender, EventArgs e)
 {
       if (strtxt != null)
        {
            RadGrid grid = (RadGrid)sender;
            GridFilteringItem filter = (GridFilteringItem)grid.MasterTableView.GetItems(GridItemType.FilteringItem)[0];
            RadComboBox combo = (RadComboBox)filter["RelType"].FindControl("RadComboBoxRelatedContacts");
            combo.FindItemByText(strtxt).Selected = true;
        }
 }

Thanks
Princy.

[newbie]

thanks!
that worked like a charm.

[Brian Schmidt]

My vb example...

Private strtxt As String

    Protected Sub RadComboBox1_SelectedIndexChanged(ByVal sender As Object, ByVal e As RadComboBoxSelectedIndexChangedEventArgs)
        Dim list As RadComboBox = DirectCast(sender, RadComboBox)
        strtxt = list.SelectedItem.Text
        Dim filterExpression As String
        filterExpression = "([assigned] = " + e.Value + ")"

        Dim item As GridFilteringItem = DirectCast(list.NamingContainer, GridFilteringItem)
        Dim gridKeyRel As RadGrid = DirectCast(item.OwnerTableView.NamingContainer, RadGrid)

        RadGrid1.MasterTableView.FilterExpression = filterExpression
        RadGrid1.MasterTableView.Rebind()

    End Sub

    Protected Sub RadGrid1_PreRender(ByVal sender As Object, ByVal e As EventArgs) Handles RadGrid1.PreRender
        If strtxt IsNot Nothing Then
            Dim grid As RadGrid = DirectCast(sender, RadGrid)
            Dim filter As GridFilteringItem = DirectCast(grid.MasterTableView.GetItems(GridItemType.FilteringItem)(0), GridFilteringItem)
            Dim combo As RadComboBox = DirectCast(filter("assigned").FindControl("RadComboBox1"), RadComboBox)
            combo.FindItemByText(strtxt).Selected = True
        End If
    End Sub