[Solved] Get TextBlock in a tooltip image in a Cell

[Paolo]

Hi, I have a gridview with a column like this:

 

 

<telerikGridView:GridViewDataColumn HeaderText="Sal" x:Name="ColonnaSal" Width="100" >

 

 

 

<telerikGridView:GridViewDataColumn.CellTemplate >

 

 

 

<DataTemplate>

 

 

 

<Grid>

 

 

 

<Grid.ColumnDefinitions>

 

 

 

<ColumnDefinition Width="0.5*" />

 

 

 

<ColumnDefinition Width="0.5*"/>

 

 

 

</Grid.ColumnDefinitions>

 

 

 

<Grid.RowDefinitions>

 

 

 

<RowDefinition />

 

 

 

<RowDefinition />

 

 

 

</Grid.RowDefinitions>

 

 

 

 

 

 

 

 

<TextBlock Grid.Row="0" Grid.Column="0" x:Name="FldNSAL" Grid.ColumnSpan="2" HorizontalAlignment="Center" Text="{Binding nsal}" ></TextBlock>

 

 

 

 

 

 

 

 

<Image Grid.Row="1" Grid.Column="0" HorizontalAlignment="Center" Height="24" Width="24" Source="images/add_favority_24x24.png" Cursor="Hand">

 

 

 

<ToolTipService.ToolTip>

 

 

 

<StackPanel Orientation="Vertical" HorizontalAlignment="Left" Margin="5" >

 

 

 

<TextBlock HorizontalAlignment="Right" Text="Insertt" ></TextBlock>

 

 

 

<TextBlock  HorizontalAlignment="Right" x:Name="FldInfo" Text="---" Width="80"></TextBlock>

 

 

 

</StackPanel>

 

 

 

</ToolTipService.ToolTip>

 

 

 

</Image>

 

 

 

 

 

<Image Grid.Row="1" Grid.Column="1" HorizontalAlignment="Center" Height="24" Width="24" Source="images/delete_favorite_24x24.png" Cursor="Hand">

 

 

 

<ToolTipService.ToolTip>

 

 

 

<StackPanel Orientation="Vertical" HorizontalAlignment="Left" Margin="5" >

 

 

 

<TextBlock HorizontalAlignment="Right" Text="Remove:" ></TextBlock>

 

 

 

</StackPanel>

 

 

 

</ToolTipService.ToolTip>

 

 

 

</Image>

 

 

 

</Grid>

 

 

 

 

</DataTemplate>

 

 

 

</telerikGridView:GridViewDataColumn.CellTemplate>

 

 

 

</telerikGridView:GridViewDataColumn>

so I have a ROW, with an Image, with a tooltip with a TextBlock.
I need to access to that textblock (X:Name="FldInfo") to write some information, but i cannot.
I try with 

 

RowLoaded event to access to all row:

 

Public

 

Sub GrigliaDettagli_RowLoaded(ByVal sender As Object, ByVal e As Telerik.Windows.Controls.GridView.RowLoadedEventArgs)

 

    Dim

 

riga As Telerik.Windows.Controls.GridView.GridViewRowItem

 

    riga = e.Row

 

    Dim a As List(Of TextBlock) = riga.ChildrenOfType(Of TextBlock)()

 

 

    Dim ObjTesto As TextBlock = a.Where(Function(tb) tb.Name = "FldInfo").FirstOrDefault

 

end sub

but ObjTesto return NOTHING

Thanks in Advance.
Paolo

[Vlad]

Hello Paolo,

You can use Loaded event of the TextBlock instead. Here is an example:

XAML

<UserControl x:Class="SilverlightApplication4.Page"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:telerik="clr-namespace:Telerik.Windows.Controls;assembly=Telerik.Windows.Controls.GridView">
    <Grid>
        <telerik:RadGridView Name="RadGridView1" AutoGenerateColumns="False">
            <telerik:RadGridView.Columns>
                <telerik:GridViewDataColumn Header="CustomerID" DataMemberBinding="{Binding CustomerID}">
                    <telerik:GridViewDataColumn.CellTemplate>
                        <DataTemplate>
                            <Button Width="50" Height="50" Cursor="Hand">
                                <ToolTipService.ToolTip>
                                    <StackPanel Orientation="Vertical" HorizontalAlignment="Left" Margin="5" >
                                        <TextBlock HorizontalAlignment="Right" Text="Insertt" ></TextBlock>
                                        <TextBlock  HorizontalAlignment="Right" x:Name="FldInfo" Text="---" Width="80" Loaded="FldInfo_Loaded"></TextBlock>
                                    </StackPanel>
                                </ToolTipService.ToolTip>
                            </Button>
                        </DataTemplate>
                    </telerik:GridViewDataColumn.CellTemplate>
                </telerik:GridViewDataColumn>
                <telerik:GridViewDataColumn Header="CompanyName" DataMemberBinding="{Binding CompanyName}" />
            </telerik:RadGridView.Columns>
        </telerik:RadGridView>
    </Grid>
</UserControl>

VB.NET

Imports System
Imports System.Collections.Generic
Imports System.Linq
Imports System.Net
Imports System.Windows
Imports System.Windows.Controls
Imports System.Windows.Documents
Imports System.Windows.Input
Imports System.Windows.Media
Imports System.Windows.Media.Animation
Imports System.Windows.Shapes

Partial Public Class Page
    Inherits UserControl
    Public Sub New()

        InitializeComponent()

        RadGridView1.ItemsSource = From i In Enumerable.Range(0, 5) Select New Customer()

    End Sub

    Private Sub FldInfo_Loaded(ByVal sender As System.Object, ByVal e As System.Windows.RoutedEventArgs)
        Dim current As Customer = CType(sender, TextBlock).DataContext
    End Sub
End Class


Public Class Customer
    Dim _CustomerID As Integer
    Dim _CompanyName As String

    Public Property CustomerID() As Integer
        Get
            Return _CustomerID
        End Get
        Set(ByVal value As Integer)
            _CustomerID = value
        End Set
    End Property
    Public Property CompanyName() As String
        Get
            Return _CompanyName
        End Get
        Set(ByVal value As String)
            _CompanyName = value
        End Set
    End Property
End Class

Regards,
Vlad
the Telerik team

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[Paolo]

Perfect!
It work!
Many thanks

Paolo