Question

I’ve been trying to make my textboxes in my DataGrid wrap. I got it working but it seems to break the Text binding.

XAML

<DataGrid x:Name="dataGrid" Grid.Row="0" AutoGenerateColumns="False" ItemsSource="{Binding}">
    <!-- <DataGrid.CellStyle>
        <Style TargetType="DataGridCell">
            <Setter Property="Template">
                <Setter.Value>
                    <ControlTemplate TargetType="{x:Type DataGridCell}">
                        <TextBox TextWrapping="Wrap" Text="{Binding Path=Value}">
                        </TextBox>
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
        </Style>
    </DataGrid.CellStyle> -->
</DataGrid>

I add the columns and rows using a data set like so.

CS

    #region Variables
    private DataTable m_stringData = new DataTable();
    private DataSet m_stringDataSet = new DataSet();
    #endregion

    #region Constructors
    public LocEditor()
    {
        InitializeComponent();

        AddColumn("ID", 100);
        AddString("Test");
        dataGrid.DataContext = m_stringData;
    }
    #endregion

    #region Methods

    private void AddColumn(string l_columnName, int l_iWidth)
    {
        m_stringData.Columns.Add(l_columnName, typeof(string));

        dataGrid.Columns.Add(new DataGridTextColumn
        {
            Header = l_columnName,
            Width = l_iWidth,
            Binding = new Binding(l_columnName)
            //Binding = new Binding(string.Format("[{0}]", l_columnName))
        });
    }

    private void AddString(string l_stringID)
    {
        m_stringData.Rows.Add();
        m_stringData.Rows[m_stringData.Rows.Count - 1][0] = l_stringID;
    }

    #endregion

Any help would be greatly appreciated.

Answer 1

Figured it out. By setting the Element and EditingElementStyle, I don’t have to reset the Binding.

DataGridTextColumn l_column = new DataGridTextColumn();
l_column.Header = l_columnName;
l_column.Binding = new Binding(l_columnName);
l_column.Width = l_iWidth;

Style l_textStyle = new Style(typeof(TextBlock));
l_textStyle.Setters.Add(new Setter(TextBlock.TextWrappingProperty, TextWrapping.Wrap));
l_column.ElementStyle = l_textStyle;
Style l_textEditStyle = new Style(typeof(TextBox));
l_textEditStyle.Setters.Add(new Setter(TextBox.TextWrappingProperty, TextWrapping.Wrap));
l_column.EditingElementStyle = l_textEditStyle;

dataGrid.Columns.Add(l_column);