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6 answers
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The issues we can reproduce with the latest version 2016.2.822.40

 

Issues #1 and #2.
How to reproduce on the test project:
Run the application.
Click the «Create new QCV with group descriptor» button.

See pic. 1

We see two issues:
1. Groups inside the table are doubled. Group descriptors collection contains two group descriptors (of the same type: GroupDescriptor), but only one is shown in «Grouped by» section.
2. Grid itself does not notify when its GroupDescriptors collection has been changed, though QueryableCollectionView bound to this Grid notifies of its GroupDescriptors collection successfully.

Issue #3
How to reproduce on the test project:
Start the application.
Delete the «Profession» group descriptor (click on X in «Groupped by»).
Group by the «Profession» group manually (drag-and-drop column header onto «Grouped by»).
Click the «Create new QCV with group descriptor» button.

See pic. 2.

We see now, that group descriptors were doubled. In the GroupDescriptors collection of Grid there are two descriptors of two different types: ColumnGroupDescriptor and GroupDescriptor. And it seems impossible to programmatically add a descriptor of type «ColumnGroupDescriptor» in the viewmodel, because it should know about the UI (it needs column data), and hence is against the principles of MVVM.

Furthermore, if you now click the «Create new QCV with group descriptor» button again, you will see that groups are tripled:

See pic. 3




Dilyan Traykov
Telerik team
 answered on 02 Sep 2016
1 answer
110 views

Hi,

I have a radGridView and a RadDataPager. The source of RadDataPager.Source is bound to RadGridView.items. Adding items in grid automatically increases number of pages.

Is there any event available that can intimate me if number of pages are increased in data pager? Actually I want to call dataPager.MoveToLastPage(); if items are added in grid.

Thanks in Advance.

Stefan
Telerik team
 answered on 01 Sep 2016
5 answers
129 views
Hi Team !!

I want to know what my DataFormatString should be if i want to display numbers in the Indian Culture :

100
1,000
10,000
1,00,000
10,00,000
1,23,45,678
Dilyan Traykov
Telerik team
 answered on 01 Sep 2016
2 answers
1.8K+ views

Hi, I have a RadGridView with a column having a checkbox inside that I should use to activate or deactivate the user. I retrieve the rows of my radgridview from a query in sqlserver. The problem is with the checkbox column: I can't get the checkbox checked based on the value in my sql column (bit). This is how I retrive the rows:

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

 

And this is the XAML:

<UserControl x:Class="CarriersManager"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             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">
     
    <UserControl.Resources>
        <local:BoolConverter x:Key="BoolConverter" />
    </UserControl.Resources>
 
    <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"
            ShowGroupPanel="False" IsReadOnly="False" Height="{Binding ActualHeight, RelativeSource={RelativeSource AncestorType={x:Type Window}}}" SelectionMode="Extended" SelectionUnit="FullRow"
            CanUserReorderColumns="False" FontFamily="Source Sans Pro Semibold" FontSize="14" GridLinesVisibility="Horizontal" IsFilteringAllowed="True" ShowSearchPanel="True" 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:GridViewColumn Header="Attivo">
                        <telerik:GridViewColumn.CellTemplate>
                            <DataTemplate>
                                <CheckBox IsChecked="{Binding Path=Attivo, Converter={StaticResource BoolConverter}}" Checked="CheckBox_Checked" Unchecked="CheckBox_Unchecked"/>
                            </DataTemplate>
                        </telerik:GridViewColumn.CellTemplate>
                    </telerik:GridViewColumn>
                </telerik:RadGridView.Columns>
            </telerik:RadGridView>
        </StackPanel>
        </StackPanel>
</UserControl>

And this is the BoolConverter : IValueConverter 

Public Class BoolConverter
    Implements IValueConverter
#Region "IValueConverter Members"
    Public Function Convert(value As Object, targetType As Type, parameter As Object, culture As System.Globalization.CultureInfo) As Object Implements IValueConverter.Convert
        If targetType <> GetType(Boolean) Then
            Throw New InvalidOperationException("The target must be a boolean")
        End If
 
        Return CBool(value)
    End Function
 
    Public Function ConvertBack(value As Object, targetType As Type, parameter As Object, culture As System.Globalization.CultureInfo) As Object Implements IValueConverter.ConvertBack
        Throw New NotSupportedException()
    End Function
#End Region
End Class

 

It doesn't work, my CheckBoxes are always unchecked. Can sameone help me please?

 

Thank you

 

 

 

Start Informatica
Top achievements
Rank 1
 answered on 01 Sep 2016
2 answers
185 views

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:x="http://schemas.microsoft.com/winfx/2006/xaml"
             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

 

Start Informatica
Top achievements
Rank 1
 answered on 01 Sep 2016
1 answer
127 views

I have the following checkbox:

<telerik:GridViewDataColumn>

    <telerik:GridViewDataColumn.CellTemplate>
          <DataTemplate>
               <CheckBox  x:Name="chck_tipoR" IsChecked="{Binding Liquidar, Mode=TwoWay}"   Click="chck_tipoR_Click"/>
          </DataTemplate>
    </telerik:GridViewDataColumn.CellTemplate>
</telerik:GridViewDataColumn>

 

the "Liquidar" variable is my base data type bool that makes the checkbox to appear selected or not, I want to make the checkbox that will click and not checked activate depending on a condition, the condition is that by giving click the checkbox a login screen where the user and password introduce me appears and when it has been satisfying my checkbox is activated.

I'm ultizando the click event for this action but in the method click the checbox in code behind not like having only the checkbox that I clicked activated, not as referrers the checkbox that I clicked and this is activated .

Please can support me with this

here is my metod:

private void chck_tipoR_Click(object sender, RoutedEventArgs e)
        {
            
            DialogoConfirmacionCobrar midialog = new DialogoConfirmacionCobrar();
            midialog.ShowDialog();

        }

Dilyan Traykov
Telerik team
 answered on 01 Sep 2016
1 answer
2.7K+ views
I have a Telerik RadCombobox where I need to react to the change of selected item and store the selected value.
telerik:RadComboBox ItemsSource="{Binding CurrencyList}"<br>  DisplayMemberPath="Currency"<br>  SelectedValuePath="CurrencyID"<br>  SelectedValue="{Binding SelectedIssuance.IssuanceCurrencyID, Mode=TwoWay}"<br>  IsSynchronizedWithCurrentItem="True"<br>  SelectedItem="{Binding SelectedCurrency,Mode=OneWayToSource}"


This works the first time I access the view, however subsequent accesses on the same or another record the displayed value is always the first record in the CurrencyList

Any suggestions on how to fix this issue?

One idea is to get the changed value in the VM from the Model by subscribing to the OPC event and remove the SelectedItem binding. 
Kalin
Telerik team
 answered on 01 Sep 2016
1 answer
177 views

Hello,

 

is it possible to do just a horizontal slide (no zoom) of some Images like on this homepage 

http://www.volkswagen-motorsport.com/index.php?id=321 

Best,

Steffen

 

Yana
Telerik team
 answered on 01 Sep 2016
1 answer
142 views

I am binding my RadGridView to a VirtualQueryableCollectionView, everything is working fine except the filters. What could be the reason that the filters are not working ?

Where should I look for the Error ?

 

 

 

Stefan
Telerik team
 answered on 31 Aug 2016
4 answers
461 views
All:

I have followed the examples for adding a RadContextMenu for the header row of a RadGridView and all is working great and it is very useful.  However, I recently added this to another grid which contains a DataTemplate for the row details.  Inside of this data template we have a small RadGridView displaying some other, related data; my problem is that the RadContextMenu.ContextMenu attached property is inheriting down to this grid inside of the Row Details and I cannot figure out how to turn it off.

I am assuming this is simply a property inheritance from WPF, but I have been unable to determine how to set it back to its default (no / empty) or if this is even possible.  I have tried setting the property value explicitly to null on the row detail's grid, but that had no effect.

Worst case I can customize a context menu for the details grid, but was hoping to just turn it off altogether.  If anyone could provide any guidance I would really appreciate it.

Thanks,
Adam
Stefan Nenchev
Telerik team
 answered on 31 Aug 2016
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