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Column width auto = bug

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GridView

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answered on 27 Sep 2011, 06:35 PM

not-painted-grid.png

Hi Vanya.

I am using 2011.1.315.1040 version.

<Grid Grid.Column="2" Width="500">

<telerikGrid:RadGridView Grid.Column="0" x:Name="gwFolderContent"

ItemsSource="{Binding FolderContent,Mode=OneWay}"

CanUserDeleteRows="False"

CanUserInsertRows="False"

CanUserResizeColumns="False"

IsReadOnly="True"

AutoGenerateColumns="False"

SelectionChanged="gwFolderContent_SelectionChanged"

GridLinesVisibility="None"

ShowGroupPanel="False"

RowIndicatorVisibility="Collapsed"

GotFocus="gwFolderContent_GotFocus"

LostFocus="gwFolderContent_LostFocus"

RowActivated="gwFolderContent_RowActivated"

Width="auto"

HorizontalAlignment="Stretch"

VerticalAlignment="Stretch"

ColumnWidth="auto"

>

<telerik:RadGridView.Columns>

<telerik:GridViewDataColumn Header="File Name" DataMemberBinding="{Binding Name}" Width="Auto" >

<telerik:GridViewDataColumn.CellTemplate>

<DataTemplate>

<StackPanel Orientation="Horizontal">

<Image Source="{Binding FileImgName,Converter={StaticResource prefixStringConverter},ConverterParameter='/images/fileSystem/small/'}" Stretch="None"/>

<TextBlock Text="{Binding Name}" Margin="4,0,0,0" VerticalAlignment="Center" />

</StackPanel>

</DataTemplate>

</telerik:GridViewDataColumn.CellTemplate>

</telerik:GridViewDataColumn>

<telerik:GridViewDataColumn Header="Title" DataMemberBinding="{Binding Csc.Title}" Width="Auto" />

<telerik:GridViewDataColumn Header="Attributes" DataMemberBinding="{Binding Csc.Attributes}" Width="Auto" />

<telerik:GridViewDataColumn Header="XML Element" DataMemberBinding="{Binding Csc.XmlElementName}" Width="SizeToCells" />

<telerik:GridViewDataColumn Header="Operation" DataMemberBinding="{Binding Operation}" Width="Auto" >

<telerik:GridViewDataColumn.CellTemplate>

<DataTemplate>

<Image Source=

"{Binding Csc.SelectedOperationImgName,Converter={StaticResource prefixStringConverter},ConverterParameter='/images/icons16x16/'}"

Stretch="None" ToolTipService.ToolTip="{Binding Csc.SelectedOperation}" />

</DataTemplate>

</telerik:GridViewDataColumn.CellTemplate>

</telerik:GridViewDataColumn>

<telerik:GridViewDataColumn Header="Modified File" DataMemberBinding="{Binding Csc.ModifiedFilePath}" MinWidth="100" >

<telerik:GridViewDataColumn.CellTemplate>

<DataTemplate>

<StackPanel Orientation="Horizontal" >

<HyperlinkButton Content="{Binding Csc.ModifiedFilePath}" NavigateUri="{Binding Csc.ModifiedFileUrl}" TargetName="_blank" VerticalAlignment="Center" />

</StackPanel>

</DataTemplate>

</telerik:GridViewDataColumn.CellTemplate>

</telerik:GridViewDataColumn>

<telerik:GridViewDataColumn Header="Modified File Title" DataMemberBinding="{Binding Csc.ModifiedTitle}" MinWidth="100" />

</telerik:RadGridView.Columns>

</telerikGrid:RadGridView>

</Grid>

I am sending data to gvFolderContentGrid grid (that 500 px wide frame is useless, just for testing). Every new page of data only makes some columns a little bit wider in case that data cannot fit. Columns never shrink to more narrow. Do you understand to my problem?

Also I would like to know, why the grid is not painted all. You can see on the attached picture, that the footer of the grid is missing.

Please excuse my poor english.

Thank you very much.

Tom

answered on 28 Sep 2011, 12:57 PM

Hello Tomas,

I believe that it would be useful to explain how the GridViewDataColumn's Width property works:

Auto	Auto (Default Value)	Automatically fits the size according to content
Fill	Star ("*")	Fills the available space
	SizeToHeader	Column width is equal to the width of the header cell
	SizeToCells	Column width is equal to the width of the widest (excluding header) cell
	# pixels	Sets fixed column width size

You may also try to set the Width property of a column to SizeToCells, in this way the column width would be equal to the width of the widest (excluding header) cell as described above.
Regarding your second question, the problem is related to the RadGridView's grid lines. You have simply removed the gridlines and the rowindicator, however the FrozenIndicator is still visible.
Then you may notice this "gap". This is the remaining space of the Grid when the grid rows do not fill the vertical available space. I would suggest you to remove it through setting the CanUserFreezeColumns property of RadGridView to False.

Kind regards,
Vanya Pavlova
the Telerik team

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