Search results matching tags 'Cell editor' and 'CellEditor'

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 !

Bug with DatePickerEditors

Grégoire — Fri, 17 Jun 2011 10:53:23 GMT

Hello,

I'am using version 4.2.11215.9190 of DataGrid with EntityFramework and I'am facing issues with CellEditor.DatePickerEditor in the DataGridControl and TableView.

- In Edit mode, the drop down picker never show when i hit the button.

- Zeros are not shown on single numbered dates and presentation is different between Edit Mode and non Edit Mode. To illustrate that point I attached a picture of what it looks like on my screen.

Are these issues known? Should I make my own DatePicker for your DataGrid?

Problem in binding Combox as CellEditor / setting SelectedValueProperty through C# code

Supriya — Tue, 01 Dec 2009 15:41:28 GMT

Hi..I am using Xceed DataGrid For WPF 3.5 professional edition.

I am binding a combobox as cell editor through C# code and not throgh XAML. The selected value of the combobox is not retained in the cell after the edit. I want to set the SelectedValueProperty so that it will retain the selected value, but dont know what should i set it to?

System.Windows.FrameworkElementFactory comboBox = new System.Windows.FrameworkElementFactory(typeof(Xceed.Wpf.Controls.NavigableComboBox));

comboBox.SetValue(Xceed.Wpf.Controls.NavigableComboBox.ItemsSourceProperty, columnInfo.DomainValues.DefaultView);

comboBox.SetValue(Xceed.Wpf.Controls.NavigableComboBox.DisplayMemberPathProperty, "DomainValue");

comboBox.SetValue(Xceed.Wpf.Controls.NavigableComboBox.SelectedValuePathProperty, "DomainID");

//comboBox.SetValue(Xceed.Wpf.Controls.NavigableComboBox.SelectedValueProperty, "Xceed.Wpf.DataGrid.CellEditorBinding"); ???

dataGrid.Columns[columnInfo.Code].CellEditor = new CellEditor();

dataGrid.Columns[columnInfo.Code].CellEditor.EditTemplate = new System.Windows.DataTemplate();

dataGrid.Columns[columnInfo.Code].CellEditor.EditTemplate.VisualTree = comboBox;

I have gone throgh lot of documentation and posts, but did not find 'what to set' in SelectedValueProperty, through C#. Please help.

CellEditor.EditTemplate is disposed when not in focus?

Amir — Mon, 23 Nov 2009 11:58:15 GMT

Hello,

In our project we have created a custom ComboBox enabling multiselection and other options such as search filtering (i.e pressing 'ab' on our custom ComboBox will show all values with 'ab' within them). Among other thing it holds additional properties such as search filtering type (prefix, exact match, etc.)

We use the Xceed Datagrid where our custom ComboBox is the CellEditor.EditTemplate and the Column.CellContentTemplate is a Textblock binded to show the corresponding value in the ComboBox.

The issue is:

A user is within the ComboBox, selects the search filtering type (via context menu on right click) then leaves the combobox (which in turn shows the Textblock). When the user returns to the same ComboBox the search type returns to default value and not the value the user selected. It seems that the DataGrid releases or disposes of the ComboBox when the user leaves it and then creates it again when the user returns. I do not see a way to get passed this issue since the ComboBox is disposed \ released and the value of the filter type is lost.
In the same manner it seems that when entering and leaving the ComboBox the SelectionChanged event fires when leaving the combo and when entering it. (again because of the dispose \ release)

I would appreciate a little more insight as to how the Datagrid handles the CellEditor and perhaps even a suggestion on how to avoid these issues.

Thank you,

Amir

Dynamically changing properties of a cell editor

Matthew — Wed, 14 Oct 2009 22:21:45 GMT

I have a requirement to be able to change the value of the MaxLength property of a cell editor at run time. When a column's cell editor is the AutoSelectTextBox, our spec says the MaxLength may be changed under certain business rules.

It makes sense to me that one might bind the MaxLength property to an object that holds the current maximum length, but whenever I try this the cell's do not update their maximum length when the bound object changes. How should I go about this?

ComboBox as Edit Template of the CellEditor?????????????????

paras — Thu, 03 Sep 2009 14:34:51 GMT

Hello,

I have one ComboBox as Edit Template and i have bind to Employee Data Source.

Now selected Employee's name will be seen in Cell but what about EmployeeID that I want to save in DataBase ?

In Normal Form I can get access EmloyeeID by cmbEmployee.SelectedValue but how can i achieve while using in grid ?

While saving the records, i am using the cmbEmployee.SelectedValue as the EmployeeID in the DataBase, then how can i get the same.

Please provide alternate solution if it is not possible in grid's Edit Template.

Kindly reply for the same.

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 :)

Enter Edit Mode on cell double click : ActivationGesture ?

Jerome — Wed, 13 May 2009 08:09:57 GMT

Hi,

I would like to know if it is possible to enter Edit Mode on a DataGrid Cell when user double-clicks on the cell ?

Thanks.