Search results matching tag 'CellEditorBinding'

Editor for MVVM ComboBox custom type

Jean-François — Thu, 01 Sep 2011 19:10:57 GMT

Hi,

I've created a class called Choices that represent a ComboxBox. Choices has public List and Value properties to bind a combo box (list of choices and selected value).

I want to bind a column of the grid on a property returning an instance of this object and I want the editor of a cell to display a working ComboBox based on those binding.

I've binded the ComboBox DataContext on the CellEditorBinding (which points to the a Choices instance) and I've binded both the list and value property. I can't seem to get the editor to display the cell won't let itself be edited and I know my binding should work since the ComboBox binding are working great on ComboBoxes when they are not in a cell editor.

What am I doing wrong ? Why can't I use the editor ? I get no binding errors at all !

Why no tech support? Is Exceed viable or in trouble?

Ted — Tue, 23 Mar 2010 16:31:52 GMT

I posted a question on 16 March 2010. I received an email from Exceed stating that I should get an answer in 2 to 5 days. I have received none. My post was titled: "DateTimeTextBox in celleditor problem?"

Does Xceed have a policy that if you don't pay $299+ for support you are ignored on the forum?

I'm not asking for priority support. I've waited > 5 days and there is zip reponse on your forum.

-Ted

Is Custom Control allowed as the Xceed DataGrid Column as CellEditor in Xceed DataGrid?

paras — Thu, 03 Sep 2009 12:57:56 GMT

Hello,

I am using the Custom Control in the Exceed Data Grid as CellEditor in one of the Column. Now i am getting the custom control when the cell/column is in the Edit Mode. Now when i am selecting a value from the Custom Control. Its value is being selected but the column/Cell is not reflected with the Selected value.

<Window.Resources>
        <xcdg:CellEditor x:Key="categoryEditor">
            <xcdg:CellEditor.EditTemplate>
                <DataTemplate>
                      <ComboBox BorderThickness="0"
                            MinHeight="22"
                            VerticalContentAlignment="Top"
                            SelectedValue="{xcdg:CellEditorBinding}"
                            FocusVisualStyle="{x:Null}">
                        <ComboBox.Resources>
                            <Style TargetType="Popup">
                                <Setter Property="TextElement.Foreground"
                                   Value="{DynamicResource {x:Static SystemColors.WindowTextBrushKey}}" />
                            </Style>
                        </ComboBox.Resources>
                        <s:String>A</s:String>
                        <s:String>R</s:String>
                    </ComboBox>
                </DataTemplate>
            </xcdg:CellEditor.EditTemplate>
        </xcdg:CellEditor>
        <xcdg:CellEditor x:Key="ucCategoyrEditor">
            <xcdg:CellEditor.EditTemplate>
                <DataTemplate>
                    <common:ucEnhanceControl x:Name="ucCategory"
                                             MyText="{xcdg:CellEditorBinding}"
                                             Loaded="ucEnhanceControl_Loaded"
                                             FocusVisualStyle="{x:Null}">

                    </common:ucEnhanceControl>
                </DataTemplate>
            </xcdg:CellEditor.EditTemplate>
        </xcdg:CellEditor>
    </Window.Resources>

<xcdg:DataGridControl Name="dgcListView" AutoCreateColumns="False" ItemScrollingBehavior="Immediate" Grid.Row="1" Grid.Column="0" Grid.ColumnSpan="3" >
            <xcdg:DataGridControl.Columns>
                <xcdg:Column FieldName="Status" Title="Status" CellEditor="{StaticResource categoryEditor}"/>
                
                <xcdg:Column FieldName="Entity Category" Title="Entity Category" CellEditor="{StaticResource ucCategoyrEditor}"/>
            </xcdg:DataGridControl.Columns>
        </xcdg:DataGridControl>

Now, here for the Column Name="Entity Category", i m using custom control for the editing and cell editor is defined in the resource file which is fine but MyText="{xcdg:CellEditorBinding}" is not working although my MyText property which is also dependency property in the Custom Control which i am binding with the xcdg:CellEditorBinding.

So, Kindly reply me for the same. Kindly answer me for the same. As how to use the Custom Control in the Xceed Grid as the Cell Editor on how to bind the values with the Cell ?

Thanks,

Paras Sanghani

Using value of one column in celleditor of another column.

priyanka — Thu, 25 Jun 2009 12:00:32 GMT

Hi,

I have two columns in my DataGridControl, lets say User Name and Role which are part of my Observable collection. The User Name column has a CellEditor which consist of a textBox and an Image. The requirement is to show the image as per role (the second column), that is an Admin Image or General User Image while editing the name. I am using an image converter however could not provide exact binding to it. Please guide me how to solve this purpose. I mean, I want some thing like following in cellEditor:

<xcdg:CellEditor x:Key="UserNameEditor">
                            <xcdg:CellEditor.EditTemplate>
                                <DataTemplate >
                                    <Grid>
                                        <Grid.ColumnDefinitions>
                                            <ColumnDefinition/>
                                            <ColumnDefinition Width="Auto"/>
                                        </Grid.ColumnDefinitions>
                                        <TextBox Grid.Column="0" Text=="{xcdg:CellEditorBinding}" />
                                        <Image Grid.Column="1"
                                               Source="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type xcdg:DataGridControl}}, Path=Parent.Children[1].Content, Converter={StaticResource imageconverter}}" />

</Grid></DataTemplate></xcdg:CellEditor.EditTemplate></xcdg:CellEditor>

I am using this cell editor in the following way in my DataGridControl.Columns:

<xcdg:Column FieldName="UserName" Title="UserName" Visible="True"
CellEditorDisplayConditions="CellIsCurrent"
CellEditor="{StaticResource UserNameEditor}">
</xcdg:Column>

Please let me know if more details are required.

Thanks in Advance :)

Binding values from one column to another

Viktor — Wed, 24 Jun 2009 13:56:07 GMT

How to I Binding values from one column to another with using DataTemplate? In C#, not in XAML.

Code:

private void GenerateDataTemplates(int ColumnNumber)
{
    var dt = new DataTemplate();

    var spOuterFactory = new FrameworkElementFactory(typeof(StackPanel));
    spOuterFactory.SetValue(StackPanel.OrientationProperty, Orientation.Horizontal);
    spOuterFactory.SetValue(MarginProperty, new Thickness(10));

    var textBlock1 = new FrameworkElementFactory(typeof(TextBlock));
    var binding1 = new Binding();
    binding1.RelativeSource = new RelativeSource(RelativeSourceMode.FindAncestor, typeof (Row), 1);
    binding1.Path = new PropertyPath(string.Format("Cells[\"{0}\"].Content", dgTemplate.Columns[ColumnNumber].FieldName));//, new object[] {});
    textBlock1.SetBinding(TextBlock.TextProperty, binding1);

    textBlock1.SetValue(TextBlock.ForegroundProperty, Brushes.Black);
    spOuterFactory.AppendChild(textBlock1);

    dt.VisualTree = spOuterFactory;

    dgTemplate.Columns[ColumnNumber].CellContentTemplate = dt;
}

Capturing Click event of Button in a DataCell using MVVM

Shailesh — Mon, 23 Mar 2009 19:42:43 GMT

Hello,

I am using Model View ViewModel pattern. I have a button inside a DataCell of Xceed DataGrid. I want to use DelegateCommand to handle the click event of the button.

Also, I dont want to write anything for the same in my Code Behind. I want everything to reside in my ViewModel.

How can this be achieved. I thought of RoutedEvents / RoutedCommands but they need some entry in the Code Behind file.

This I want to eliminate.

Requesting you to please help on the same.

Thanks and Regards

SSA.

Modifying a simple array

Aykut — Mon, 02 Mar 2009 15:55:05 GMT

Hello,

I want to manipulate a simple array with xCeed grid. Is this possible? I can view items, but editing and creating doesn't function.

public partial class Window1 : Window {
public ObservableCollection<int> deneme { get; set; }

public Window1() {
InitializeComponent();
dummy = new ObservableCollection<int>();
dummy.Add( 1 );
DataGridCollectionView collectionView = new DataGridCollectionView(dummy, typeof(int));
dataGridControl1.ItemsSource = collectionView ;
}

}

When I create a dummy class with an int property and create the observable collection with that type, then it's ok. But this solution isn't applicable in my case unfortunately. Additionally I've also experimented turning off autocolumn creation and creating a column with no parameters in Binding.

Any help is appreciated.

Best Regards.

Aykut.

Programmticly adding columns/EditTemplates

Dean — Fri, 27 Feb 2009 03:38:41 GMT

The project I am working on requires all controls to be added to the screen programmatically.

I have tried creating a data grid with 2 columns one of which has an combo box edit template.

The code below I copied from other forum posts and modified it to suit my own needs however when I try to edit a record/cell the combo box is not displayed at all.

Does anyone know why or have any suggestions?

Also i read somewhere that is not recommended to create this programmatically is this true? If it is true what are the risks and implications of doing it programmatically?

this.xceedDataGrid.AutoCreateColumns = false;

this.xceedDataGrid.EditTriggers = EditTriggers.CellIsCurrent;

this.xceedDataGrid.CellEditorDisplayConditions = CellEditorDisplayConditions.MouseOverCell;

Column titleCol = new Column("Title", "Title", new Binding("Title"));

List<String> itemList = new List<String>();

ObjectQuery<Course> courseQuery = schoolContext.Course;

foreach (Course currentCourse in courseQuery)

{

itemList.Add(currentCourse.Title.ToString());

}

Binding binding = new Binding();

binding.Source = itemList;

FrameworkElementFactory factory = new FrameworkElementFactory(typeof(ComboBox));

factory.SetValue(ComboBox.ItemsSourceProperty, binding);

CellEditorBindingExtension cellEditorBindingExtension = new CellEditorBindingExtension();

factory.SetValue(ComboBox.SelectedValueProperty, cellEditorBindingExtension.ProvideValue(null) as BindingBase);

DataTemplate editTemplate = new DataTemplate(typeof(ComboBox));

editTemplate.VisualTree = factory;

CellEditor cellEditor = new CellEditor();

cellEditor.EditTemplate = editTemplate;

titleCol.CellEditor = cellEditor;

this.xceedDataGrid.Columns.Add(titleCol);

this.xceedDataGrid.Columns.Add(new Column("OnlineCourse", "OnlineCourse", new Binding("OnlineCourse.URL")));

CellEditorBinding update event?

Dats — Thu, 12 Feb 2009 08:08:52 GMT

Hi There,

I'm new to Xceed DataGridControl, It's nice tough. I'm having a problem with the CellEditorBinding. I just don't know when it will be updated from the custom control. here is my example :

Create a WPF project named XceedGridTester then copy paste the code

<Window x:Class="XceedGridTester.Window1"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:xcdg="http://schemas.xceed.com/wpf/xaml/datagrid"
xmlns:XceedGridTester="clr-namespace:XceedGridTester"
Title="Window1" Height="400" Width="400" >
<Grid>
<xcdg:DataGridControl Margin="10,10,10,10" Name="dataGridControl1" VerticalAlignment="Top" >
<xcdg:DataGridControl.View>
<xcdg:TableView UseDefaultHeadersFooters="False">
<xcdg:TableView.FixedHeaders>
<DataTemplate>
<xcdg:ColumnManagerRow AllowAutoFilter="False" />
</DataTemplate>
</xcdg:TableView.FixedHeaders>
<xcdg:TableView.Footers>
<DataTemplate>
<xcdg:InsertionRow />
</DataTemplate>
</xcdg:TableView.Footers>
</xcdg:TableView>
</xcdg:DataGridControl.View>
<xcdg:DataGridControl.Columns>
<xcdg:Column FieldName="col1" >
<xcdg:Column.Title>
<TextBlock TextWrapping="Wrap" Text="Test Col1" />
</xcdg:Column.Title>
<xcdg:Column.CellEditor>
<xcdg:CellEditor>
<xcdg:CellEditor.EditTemplate>
<DataTemplate>
<XceedGridTester:MyDataBox Value="{xcdg:CellEditorBinding}" />
</DataTemplate>
</xcdg:CellEditor.EditTemplate>
</xcdg:CellEditor>
</xcdg:Column.CellEditor>
</xcdg:Column>
<xcdg:Column FieldName="col2" >
<xcdg:Column.Title>
<TextBlock TextWrapping="Wrap" Text="Test Col2" />
</xcdg:Column.Title>
<xcdg:Column.CellEditor>
<xcdg:CellEditor>
<xcdg:CellEditor.EditTemplate>
<DataTemplate>
<XceedGridTester:MyDataBox Value="{xcdg:CellEditorBinding}"/>
</DataTemplate>
</xcdg:CellEditor.EditTemplate>
</xcdg:CellEditor>
</xcdg:Column.CellEditor>
</xcdg:Column>
</xcdg:DataGridControl.Columns>
</xcdg:DataGridControl>
</Grid>
</Window>

And the control

<UserControl x:Class="XceedGridTester.MyDataBox"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Height="20" Width="160" x:Name="_parent">
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<TextBox Name="Text"
Grid.Column="0"
Text="{Binding ElementName=_parent, Path=Value, Mode=TwoWay, UpdateSourceTrigger=LostFocus}"
/>
</Grid>
</UserControl>

The code behind :

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;

namespace XceedGridTester
{
/// <summary>
/// Interaction logic for MyDataBox.xaml
/// </summary>
public partial class MyDataBox : UserControl
{
public MyDataBox()
{
InitializeComponent();
}

public static readonly DependencyProperty ValueProperty = DependencyProperty.Register(
"Value",
typeof( string ),
typeof( MyDataBox ) );

/// <summary>
/// Gets or sets the value. This is a dependency property.
/// </summary>
/// <value>The value.</value>
public string Value
{
get { return (string)GetValue( ValueProperty ); }
set { SetValue( ValueProperty, value ); }
}
}
}

Can you help me why the textbox cannot update the cell after I leave edit mode? the datagridcontrol is actually binded to a datatable, but this example is quite enough to explain my problem.

My limitations are :

I should hide the textbox inside another control instead to use it directly
the textbox's text binding should be set to LostFocus instead of PropertyChanged ( I know it can be solved by PropertyChanged but I should not use that in my project )
Is there another way to solve this problem?

CellEditorBinding causes Xaml parse exception

David — Tue, 11 Nov 2008 01:07:59 GMT

When I stated using cell editors with "CellEditorBinding", I get a Xaml parse exception "Cannot convert the value in attribute 'Source' to object of type 'System.Object'. A TwoWay or OneWayToSource binding cannot work on the read-only property. The property in question is my data table inside my dataset. It is indeed readonly, But this is just an object refrenece. The columns within the table are not readonly. It seems to me that some one is checking at the wrong level. I don't know if this some one is Xaml or Xceed.

I added a dummy set procedure to the property just to get around this error. But the property is inside the dataset created by dataset designer. And every time I change my dataset, designer changed the code back to readonly.