[Solved] Infinite Loop when trying to AddNewDataItem

[Paul Dyksterhouse]

Hello,

I'm trying to add a new row to a GridView that is nested in the RowDetails of a parent GridView but when I call the AddingNewDataItem Handler it gets caught in an infinite loop. Any ideas as to why?

XAML

<!-- Nested GridView -->

<telerik:RadGridView x:Name="FinishedGoodComponentsGrid"

ShowGroupPanel="False"

RowIndicatorVisibility="Collapsed"

ItemsSource="{Binding FinishedGoodComponents, Mode=TwoWay}"

AutoGenerateColumns="False"

IsFilteringAllowed="False"

RowEditEnded="GridRowEditEnded"

ShowInsertRow="True"

AddingNewDataItem="FinishedGoodComponentsGridAddingNewDataItem"

CanUserFreezeColumns="False"

Margin="0"

Grid.Row="2"

Width="870">

<telerik:RadGridView.Columns>

<telerik:GridViewComboBoxColumn

Header="Component"

DataMemberBinding="{Binding FinishedGoodId}"

UniqueName="Component"

SelectedValueMemberPath="Id"

DisplayMemberPath="InventoryNumber"/>

<telerik:GridViewDataColumn Header="Qty" DataMemberBinding="{Binding Qty}"/>

</telerik:RadGridView.Columns>

</telerik:RadGridView>

C#

private void FinishedGoodComponentsGridAddingNewDataItem(object sender, GridViewAddingNewEventArgs e)

{

e.Cancel = true;

MessageBox.Show("Add Row Pushed");

/* var finishedGood = (FinishedGood)FinishedGoodsGrid.SelectedItem;

var finishedGoodComponent = new FinishedGoodComponent { FinishedGood = finishedGood, FinishedGoodId = finishedGood.Id };

finishedGood.FinishedGoodComponents.Add(finishedGoodComponent);*/

var finishedGoodComponentsGrid = (RadGridView)sender;

finishedGoodComponentsGrid.BeginInsert();

//TODO: why I have to do this to make the new row show in edit mode is beyond me.  Work with Telerik on this.    /*Dispatcher.BeginInvoke(    delegate

{

var row = (GridViewRow)componentGrid.ItemContainerGenerator.ContainerFromItem(finishedGoodComponent);

((GridViewCell)row.Cells[0]).IsCurrent = true;

componentGrid.BeginEdit();

}    );*/

}

FYI - I'm using Q3 2009.3 1208

[Milan]

Hello Paul Dyksterhouse,

Whenever you call BeginInsert RadGridView will try to insert a new row into the grid and the AddingNewdataItem event will be raised. To eliminate the infinite loop you should remove the BeginInsert call from the event handler.

All the best,
Milan
the Telerik team

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