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Random lockups/freezes on editable rows

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GridView

This is a migrated thread and some comments may be shown as answers.

Rahul Ravindran asked on 19 Oct 2011, 08:58 PM

I have a RadGridView with the EditTriggers set to "CellClick". In a normal scenario, I can click on a cell, edit it and the cell will take up the new value as expected. However, very rarely when I click on a cell, I can edit it but the value doesn't persist. I can't make out a pattern for the issue and it occurs randomly. I am using the 2010.2.0714.35 version of the grid. I would like to know if this is a known issue and if it's been fixed in a later version of the grid.

Some more details:

I can see an icon on the left hand side when I edit a row and it usually goes away when I switch to an another row. The rows with the "locked" cells have this "editing icon" all the time. That is, even if I switch to another row, the icon doesn't go away and I can no longer edit any cells in that row.
If I click on any cell in the rows with this issue, the text in the cell momentarily disappears. I can still enter in new text but of course it doesn't persist. If I move out of the cell, the old value comes back. In a normal cell, when I click on the cell, it will still retain the existing text and I can edit it.
I am not doing anything particularly fancy with the grid. I am hooking into the CellValidating event to convert any newly entered text to lower case (business requirement). Here's the code:

private void GridView_CellValidating(object sender, Telerik.Windows.Controls.GridViewCellValidatingEventArgs e)

        {

            if (e.OldValue != e.NewValue)

            {

                ((System.Windows.Controls.TextBox)(e.EditingElement)).Text = e.NewValue.ToString().ToLower(System.Globalization.CultureInfo.InvariantCulture);

                IsEdited = true;

            }

        }
This is the markup of the grid:

<local:EquipmentsGridView x:Name="uxStowList" ListType="StowList" Deleting="OnDelete" SelectionMode="Extended" CanUserInsertRows="True" ShowInsertRow="True" ShowGroupPanel="True" telerik:StyleManager.Theme = "Office_Blue"

                                IsFilteringAllowed="True" AutoExpandGroups="False"

                                    EditTriggers="CellClick" RowLoaded="ListRowLoaded" RowEditEnded="Gridview_RowEditEnded" ColumnWidthChanged="uxStowList_ColumnWidthChanged" DataLoaded="uxStowList_DataLoaded" HorizontalAlignment="Left" VerticalAlignment="Top">



                              <telerik:RadGridView.Columns>

                                       <custom:GridRowNumber Header="#" Width="50" />

                                       <telerik:GridViewColumn>

                                           <telerik:GridViewColumn.CellTemplate>

                                               <DataTemplate>

                                                   <telerik:RadRibbonButton SmallImage="Resources\CrossIcon.png" Command="telerikGrid:RadGridViewCommands.Delete" CommandParameter="{Binding}" Name="btnDeleteStowList" Click="btnDeleteStowList_Click" />

                                               </DataTemplate>

                                           </telerik:GridViewColumn.CellTemplate>

                                       </telerik:GridViewColumn>

                                       <telerikGrid:GridViewSelectColumn></telerikGrid:GridViewSelectColumn>

                                   </telerik:RadGridView.Columns>

                               </local:EquipmentsGridView>

EquipmentsGridView is inheriting from RadGridView and the RowEditEnded event isn't doing anything to the grid.

Please let me know if I can provide more information.

Random lockups/freezes on editable rows

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