C# .NET - WPF,Datagrid, fixed row number,

Asked By Raman

15-Oct-10 02:28 AM

Hi,

I am using a datagrid in which I need to allow user only to add 256 rows. How can I do it?

Thanks,
Raman

Michael Detras replied to Raman

15-Oct-10 03:05 AM

Hi, you can try adding a trigger:

    <Trigger Property="Items.Count" Value="256">
      <Setter Property = "CanUserAddRows" Value="False"/>
    </Trigger>

This is just a guess so I'm not sure if this will work. Hope this helps.

Raman replied to Michael Detras

15-Oct-10 03:56 AM

thanks for the reply michael.
But WPF datagrid doesnot have property "Items".
Any other idea? :)

Michael Detras replied to Raman

15-Oct-10 04:05 AM

I checked it again and DataGrid does have an Items property. It inherited it from ItemsControl. Are you using WPF or Silverlight? As far as I can remember, the Silverlight version of the DataGrid does not have an Items property.

Raman replied to Michael Detras

15-Oct-10 09:50 AM

I tried adding the xaml code you provided as content of datagrid but it throws compile time error which says "Cannot find the type 'Items'". Am I doing something wrong?

Michael Detras replied to Raman

15-Oct-10 12:14 PM

Not sure what is wrong. Could you post some code?

Raman replied to Michael Detras

21-Oct-10 08:37 AM

<DataGrid Name="dgColorConfiguration"

AutoGenerateColumns="False"

CanUserResizeRows="False"

Grid.Row="1" RowHeaderWidth="20"

CanUserDeleteRows="False"

ItemsSource="{Binding CopiedColorPalette}"

HorizontalAlignment="Stretch"

VerticalAlignment="Stretch"

ColumnWidth="*"

IsSynchronizedWithCurrentItem="True">
   <Trigger Property="Items.Count" Value="256">
    <Setter Property = "CanUserAddRows" Value="False"/>
    </Trigger>

</DataGrid>

<

Michael Detras replied to Raman

21-Oct-10 08:46 AM

Use it like this:

<DataGrid>

<DataGrid.Style>

<Style TargetType="DataGrid">

<Style.Triggers>

<Trigger Property="Items.Count" Value="256">

<Setter Property = "CanUserAddRows" Value="False"/>

</Trigger>

</Style.Triggers>

</Style>

</DataGrid.Style>

</DataGrid>

Hope this helps.

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