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Radgrid red border when editing

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GridView

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Jeremie asked on 09 Aug 2010, 04:06 PM

matrix.JPG

Hi ,

I did some test on the grid view and i have an unexpected behaviour.
What is the meaning of a red border when a cell is edited ? (you can see the example on the attached screenshot. )

My problem is that I can't edit one column (the column "6" on the screenshot). The red border appears if i try to put a value. Only this column doesn't work as expected, others can be edited. I spend some time on this problem, i didn't found any solution.

<telerik:RadGridView Name="radgrid" Margin="2,2,2,2" IsScrolling="True" ScrollMode="Deferred" DataLoadMode="Synchronous"

ItemsSource="{Binding .Value, UpdateSourceTrigger=PropertyChanged}"

EnableColumnVirtualization="True" EnableRowVirtualization="True" MaxHeight="500" MaxWidth="700"

FrozenColumnCount="1" IsFilteringAllowed="False" ShowGroupPanel="False" RowDetailsVisibilityMode="Collapsed"

AutoGeneratingColumn="AutoGeneratingColumnEvent" telerik:StyleManager.Theme="Summer" EditTriggers="CellClick" >

<telerik:RadGridView.Columns>

<telerik:GridViewDataColumn IsReadOnly="True" DataMemberBinding="{Binding RowHeader}" CellStyle="{StaticResource RowHeaderStyle}" Header=""/>

</telerik:RadGridView.Columns>

</telerik:RadGridView

Best regards,
Jeremie GAMBIN

4 Answers, 1 is accepted

answered on 11 Aug 2010, 10:50 AM

hi,

thanks for that quick answer.

I'm using the trial version of WPF Q1 2010 SP2.

The red border in the demo is a little different, the upper right corner is a red triangle. Which is different in my case, that's why i had doubt on the validation issue.

My binding is done on a DataTable and there is no validation property.

this.MatrixTable = new DataTable();

//create colums

MatrixTable.Columns.Add(new DataColumn("RowHeader", typeof(string)));

MatrixTable.Columns.Add(new DataColumn("1", typeof(string)));

MatrixTable.Columns.Add(new DataColumn("3", typeof(string)));

var row1 = MatrixTable.NewRow();

MatrixTable.Rows.Add(row1);

row1["RowHeader"] = "1";

row1["1"] = "X";

row1["3"] = "";

var row2 = MatrixTable.NewRow();

MatrixTable.Rows.Add(row2);

row2["RowHeader"] = "3";

row2["1"] = "b";

row2["3"] = "X";

return MatrixTable;

The red border appears when i try to valid the cell. if i add

MatrixTable.ColumnChanged += ColumnChanged;

MatrixTable.ColumnChanging += ColumnChanging;
both method are not reached when i edit and valid my cell

If i do the same, with rows "Header" "1" and "2" (consecutiv integers), the edition works as expected in every columns.
If i do the same, with rows "Header" "A" and "B" (consecutiv char), the edition works as expected in every columns.
If i do the same, with rows "Header" "A" and "C" (not consecutiv char), the edition works as expected in every columns.

I think the problem comes from columns headers with values which are integers. (Strings with "integer value"). Is that a bug ?