Hi ,
I have defined one XamGrid with ComboBoxColumn.
<ig:XamGrid x:Name="ManageRecipeStateGrid" AutoGenerateColumns="False" ColumnWidth="*" ItemsSource="{Binding ManageRecipeStateResults}">
<ig:XamGrid.GroupBySettings>
<ig:GroupBySettings AllowGroupByArea="Hidden" GroupByOperation="MergeCells" />
</ig:XamGrid.GroupBySettings>
<ig:XamGrid.Columns>
<ig:TextColumn Key="RecipeKey" Visibility="Collapsed" />
<ig:TextColumn Key="MandatoryCriteriaList" HeaderText="Recipe" IsReadOnly="True" >
</ig:TextColumn>
<ig:TextColumn Key="RecipeVersion" HeaderText="Version" IsReadOnly="True">
<ig:TextColumn Key="PreviousRecipeState" Visibility="Collapsed" />
<ig:ComboBoxColumn Width="120" HorizontalContentAlignment="Stretch"
ItemsSource="{Binding Source={StaticResource optionList}}" Key="CurrentRecipeState"
SelectedValuePath="State"
DisplayMemberPath="State"
AllowEditingValidation="True" HeaderText="Recipe State">
</ig:ComboBoxColumn>
<ig:CheckBoxColumn Key="IsPreserved" HeaderText="Preserve Recipe">
</ig:CheckBoxColumn>
</ig:XamGrid.Columns>
<ig:XamGrid.EditingSettings>
<ig:EditingSettings AllowEditing="Hover" />
</ig:XamGrid.EditingSettings>
</ig:XamGrid>
Now I want to handle the event whenever I change the item selection in ComboBoxColumn. How I can handle this ?
Hello,
Thank you for your post. I have been investigating how you can handle the selection changed event of the ComboBoxColumns and since the column is using a ComboBox as an editor when the cell is in edit mode, you can handle the SelectionChange event of the ComboBox. To do that, you can handle the CellEnteredEditMode event of the XamGrid and if the cell is of the ComboBoxColumn you can handle the SelectionChanged event. Here is an example for that:
private void ManageRecipeStateGrid_CellEnteredEditMode(object sender, Infragistics.Controls.Grids.EditingCellEventArgs e) { if (e.Cell.Column.Key.Equals("CurrentRecipeState")) { (e.Cell.Control.Content as ComboBox).SelectionChanged += new SelectionChangedEventHandler(MainWindow_SelectionChanged); } } void MainWindow_SelectionChanged(object sender, SelectionChangedEventArgs e) { //Do Something }
Another approach that you can use is creating a TemplteColumn instead of a ComboBoxColumn and in the EidorTemplate you can add a XamComboEdior and handle the SelectedItemChanged event. I have created a sample application for you, based on the code snippet that you have provide, which implements the mentioned approach.
Please let me know if you need any further assistance on the matter.
Sincerely,
Krasimir
Developer Support Engineer
Infragistics
www.infragistics.com/support
Hi,
How to select a selecteditem from combobox.
combobox.sleecteditem properties is not availablethen how we can store the sleecteditem to sql table?
can u give any idea?
thanks
Hi Krasimir,
Thanks the solution works fine . How to set text Wrapping here ? Suppose the content in my cell is big then it is displayed only till certaing length , after that to see the complete text I have to drag the column to see the full text.
Thanks
Arpita
Hello Arpita,
Thank you for your reply. You can change the style for the MergedContentControl that I have provided you with in order to use TextBlock instead of the ContentPrenester and set the TextWapping property of the TextBlock to Wrap. The changes style should look as follows:
<Style TargetType="igPrim:MergedContentControl"> <Setter Property="Padding" Value="5"/> <Setter Property="Background" Value="{StaticResource CellItemNormalBackgroundBrush}"/> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="igPrim:MergedContentControl"> <Border x:Name="Bd" Background="{TemplateBinding Background}" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}"> <Grid> <TextBlock VerticalAlignment="Center" HorizontalAlignment="Center" TextWrapping="Wrap" TextAlignment="Center" Text="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=Content.Text}" Margin="{TemplateBinding Padding}"/> </Grid> </Border> </ControlTemplate> </Setter.Value> </Setter> </Style>
This solution is not working for me. Can you please modify my solution and check that. After applying this style when I run the solution the text is not splitted in next line. I still see incomplete text in Recipe column. please check the attached image how I am seeing the data.
I have modified the text like this
new Data
{
RecipeKey = 2,
MandatoryCriteriaList = "some dataaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
RecipeVersion = 2,
PreviousRecipeState = true,
CurrentRecipeState = "State 2"
}
The text wrapping of the Text in the MergedContentControl is actually working. The reason for the appearance that you are having is that the MergedContentControl takes as much space as the height of all the rows in the group and in order to achieve the appearance that you are looking for the you can allow text wrapping on the CellControl and setting the RowHeight of the XamGrid to Dynamic, which will allow the row to change its height and all the text will be visible. I have modified the sample application that I have sent you previously in order to demonstrates this approach.
Can you please explain me why you have used this piece of code in the sample solution . What is the purpose of this.
private T GetChildFromType<T>(DependencyObject parent) where T : DependencyObject
T result = null;
for (int i = 0; i < VisualTreeHelper.GetChildrenCount(parent); i++)
if (VisualTreeHelper.GetChild(parent, i) is T)
return VisualTreeHelper.GetChild(parent, i) as T;
else
result = GetChildFromType<T>(VisualTreeHelper.GetChild(parent, i));
if (result != null)
break;
return result;
Thank you for your reply. I am very glad that the approach I have suggested was helpful for you. Please let me know if you need any further assistance on the matter.
Thanks for the help. This works for me.
I am just checking if you require any further assistance on the matter.
Thank you for your reply. I am very glad that the approach I have suggested was helpful. I am using the SetCellValue method, since the Cell.Value property is read only and you can set the value of the cell, through the cell itself. This method is creating a CellValueObject which contains one dependency property and then creates a Binding between the property that corresponds to the current cell and the Value property of the CellValueObject, through the Data of the current row. After that, it sets the Value property of the CellValueObject, which triggers the Binding and this way the value of the property that corresponds to the cell is set, without interacting with the Data item of the current row.
Regarding the code that you have mentioned, in the CellExitingEditMode, I am de-attaching the handler, since each time the editor enters edit mode, a handler is attached to the Click event. If this code is commented, the hadnlers of the event will increase with one each time the Cell enters edit mode. This will case multiple execution of the the same function and when you enter ‘n’ times edit mode, for one cell and then click on the CheckBox, you will see that ‘n’ MessageBoxes are opened one after another.
Thsi is fine. Can you please explain this SetCellValue function and why you have used this line
(e.Editor
as CheckBox).Click -= new RoutedEventHandler
(MainWindow_Click);
in CellExitingEditMode event.