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define DataGrid template column through code

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define DataGrid template column through code

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  • Posted by
    on 6-29-2009 2:20 PM

    Hi,

    I have a working Template Column (TwoLevelHeaderColumn) that displays three columns within a column with a title header.

    |                TITLE                | Column4 | Column5 |
    |Column1 Column2 Column3|               |               |

    In the xaml page I reference this column control like this without a problem:

    <C1_Silverlight_DataGrid:C1DataGrid x:Name="myGrid" Grid.ColumnSpan="1" Canvas.Left="0" Canvas.Top="25" Width="600" Height="645" Grid.Row="1" RowHeaderWidth="0"  CanUserEditRows="False" CanUserAddRows="False" ColumnHeaderHeight="30" AutoGeneratingColumn="myGrid_AutoGeneratingColumn" >
     <C1_Silverlight_DataGrid:C1DataGrid.Columns>
      <C1_Silverlight_DataGrid:DataGridTemplateColumn DisplayIndex="4">
       <C1_Silverlight_DataGrid:DataGridTemplateColumn.Header>
        <local:TwoLevelHeaderColumn ControlMode="Header"/>
       </C1_Silverlight_DataGrid:DataGridTemplateColumn.Header>
       <C1_Silverlight_DataGrid:DataGridTemplateColumn.CellTemplate>
        <DataTemplate>
         <local:TwoLevelHeaderColumn ControlMode="Cell"/>
        </DataTemplate>
       </C1_Silverlight_DataGrid:DataGridTemplateColumn.CellTemplate>
       <C1_Silverlight_DataGrid:DataGridTemplateColumn.CellEditingTemplate>
        <DataTemplate>
         <local:TwoLevelHeaderColumn ControlMode="EditingCell"/>
        </DataTemplate>
       </C1_Silverlight_DataGrid:DataGridTemplateColumn.CellEditingTemplate>
      </C1_Silverlight_DataGrid:DataGridTemplateColumn>
     </C1_Silverlight_DataGrid:C1DataGrid.Columns>
    </C1_Silverlight_DataGrid:C1DataGrid>

    The rest of the columns are added dinamically depending on the collection used.
    Now, I need to create and add this Template Columns to the grid through C# code but got stuck on the process.
    Lets suppose we have:

    TwoLevelHeaderColumn tlhc = new TwoLevelHeaderColumn();
    DataGridTemplateColumn dgtc = new DataGridTemplateColumn();

    and a Dependency Property "ControlModeProperty" that is based on the following type (enum):
      MergedContentType.Header
      MergedContentType.Cell
      MergedContentType.CellEditing
               
    How can I configure the column to work the same way as in the xaml but through c# to then use myGrid.Columns.Add(dgtc); to add the columns ? The idea is to add more than once this template to the grid.
    I'm new to silverlight and C1, and couldn't figure out how to solve this.

    Thanks in advance

     

    , ,
  • Posted by
    on 7-1-2009 11:04 AM

    Hi,

    Here is a sample of adding a template column from code,

    var templateColumn = new DataGridTemplateColumn();
    var cellTemplate = (DataTemplate)XamlReader.Load(@"<DataTemplate xmlns=""http://schemas.microsoft.com/winfx/2006/xaml/presentation"" xmlns:x=""http://schemas.microsoft.com/winfx/2006/xaml"" xmlns:local=""clr-namespace:C1DataGrid_CustomColumns;assembly=C1DataGrid_CustomColumns"" ><local:MergedColumnEditor ControlMode=""Cell"" /></DataTemplate>");
    var cellEditingTemplate = (DataTemplate)XamlReader.Load(@"<DataTemplate xmlns=""http://schemas.microsoft.com/winfx/2006/xaml/presentation"" xmlns:x=""http://schemas.microsoft.com/winfx/2006/xaml"" xmlns:local=""clr-namespace:C1DataGrid_CustomColumns;assembly=C1DataGrid_CustomColumns"" ><local:MergedColumnEditor ControlMode=""EditingCell"" /></DataTemplate>");
    templateColumn.CellTemplate = cellTemplate;
    templateColumn.CellEditingTemplate = cellEditingTemplate;
    templateColumn.Header =     new MergedColumnEditor() { ControlMode = MergedContentType.Header };
    grid.Columns.Add(templateColumn);

    Anyway I believe in this case would be easier to create a custom column instead of using Template column.

    Note I hard-coded the data template in the code, but you could put the data template as a resource in the page and take it from there.

    Regards,

    Alvaro.

    ,
  • Posted by
    on 10-19-2009 4:40 AM

    Hi Alvaro,

    What does Namespace contain class MergedColumnEditor() ?

    Thanks so much.
  • Posted by
    on 10-19-2009 1:22 PM

    Hi datblc,

    It is in the C1DataGrid_Demo sample, but now is called CompositeColumn.

    Regards,

    Alvaro.
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