Binding problems

[Start Informatica]

Hi, I have a problem with my gridview, I don't know why Binding works in some columns but not in other. This is my xaml:

<UserControl x:Class="CarriersManager"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
             xmlns:local="clr-namespace:Dalessio_Logistics"
             xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation"
             xmlns:sys="clr-namespace:System;assembly=mscorlib"
             mc:Ignorable="d"
             d:DesignHeight="500" d:DesignWidth="1100" Background="White">

    <StackPanel Margin="0,0,0,0" Height="auto" HorizontalAlignment="Stretch">
            <StackPanel x:Name="panelTitle" Height="50" VerticalAlignment="Top" DockPanel.Dock="Top" Orientation="Horizontal" HorizontalAlignment="Stretch">
                <telerik:Label Content="Gestione operatori:"/>
            </StackPanel>
            <StackPanel x:Name="spContent">
            <telerik:RadGridView x:Name="gridCarriers"  AutoGenerateColumns="False" CanUserInsertRows="False" CanUserDeleteRows="False" RowIndicatorVisibility="Collapsed" IsFilteringAllowed="True"
            ShowGroupPanel="False" IsReadOnly="False" Height="{Binding ActualHeight, RelativeSource={RelativeSource AncestorType={x:Type Window}}}" SelectionMode="Single"
            CanUserReorderColumns="False" FontFamily="Source Sans Pro Semibold" FontSize="14" GridLinesVisibility="Horizontal" RowHeight="45">
                <telerik:RadGridView.Columns>
                    <telerik:GridViewDataColumn x:Name="Carrier" UniqueName="Carrier" Header="Carrier" IsReadOnly="True" Width="150" DataMemberBinding="{Binding Carrier}"/>
                    <telerik:GridViewDataColumn x:Name="CompanyName" Header="CompanyName" IsReadOnly="True" DataMemberBinding="{Binding CompanyName}" Width="*"/>
                    <telerik:GridViewCheckBoxColumn Header="Attivo" Width="100" DataMemberBinding="{Binding Attivo}" IsReadOnly="True"/>
                    <telerik:GridViewColumn Header="Attiva" Width="80">
                        <telerik:GridViewColumn.CellTemplate>
                            <DataTemplate>
                                <telerik:RadButton  x:Name="btPiù" CommandParameter="{Binding Carrier}" Content="+" Click="btPiù_Click" TouchDown="btPiù_Click"  Background="#FF97DA7E" />
                            </DataTemplate>
                        </telerik:GridViewColumn.CellTemplate>
                    </telerik:GridViewColumn>
                    <telerik:GridViewColumn Header="Disattiva" Width="80">
                        <telerik:GridViewColumn.CellTemplate>
                            <DataTemplate>
                                <telerik:RadButton  x:Name="btMeno" CommandParameter="{Binding Carrier}" Content="{Binding Carrier}" Click="btMeno_Click" TouchDown="btMeno_Click" Background="#FFEC6F6F"/>
                            </DataTemplate>
                        </telerik:GridViewColumn.CellTemplate>
                    </telerik:GridViewColumn>
                </telerik:RadGridView.Columns>
            </telerik:RadGridView>
        </StackPanel>
        </StackPanel>
</UserControl>

 

this is my vb:

Private Sub UserControl_Loaded(sender As Object, e As RoutedEventArgs) Handles Me.Loaded
        Dim dt As New DataTable

        Using sqlCon = New SqlConnection(ConnectionStringRemote)
            sqlCon.Open()

            Dim cmd = New SqlCommand("", sqlCon)
            cmd.CommandText = "SELECT MA_Carriers.Carrier, MA_Carriers.CompanyName, ISNULL(STRT_CarriersManager.Activated,0) AS Attivo
FROM            STRT_CarriersManager RIGHT OUTER JOIN
MA_Carriers ON STRT_CarriersManager.Carrier = MA_Carriers.Carrier WHERE MA_Carriers.Disabled=0"
            Dim sda = New SqlDataAdapter(cmd)

            sda.Fill(dt)
            gridCarriers.ItemsSource = dt
        End Using
    End Sub

 

And this is the result:

http://prntscr.com/cbrdtd

As you can see the content of the green button is empy, and also the commandparameter is empty when I try to retrieve it. Can you help me please? 

 

Thank you

 

[Dilyan Traykov]

Hello,

As you've explicitly set the Content of the green button and the red button seems to be lacking such, I assume you meant red rather than green in your last reply. The behavior you've described does seem odd, though. I've tried to reproduce it in a project, but was, unfortunately, unable to do so.

Could you please have a look at the attached project and let me know if I'm missing something important? Thank you in advance for your cooperation on the matter.

Regards,
Dilyan Traykov
Telerik by Progress

[Start Informatica]

Hi Dilyan, 

this line you wrote in my other open thread was the key: "On a side note, please bear in mind that when a DataTable is needed as a source collection of RadGridView, it is recommended to use its DefaultView property as specified in the following article.

gridCarriers.ItemsSource = dt.DefaultView"

I added .DefaultView and all the binding problems are gone, now when I read the commandParameter I can retrieve the values correctly, before they where all "Nothing". 

 

Thank you very mutch.