wpf datagrid : create a DatagridNumericColumn in wpf

Question

I have a requirement that I want to make a datagridcolumn which only accepts numeric values(integer) ,when the user enter something other than numbers handle the textbox . I tri

Answer 1

Use TryParse instead, this helps to restrict input values to integer numbers only.

    /// 

    /// This class help to create data grid cell which only support interger numbers.
    /// 
    public class DataGridNumericColumn : DataGridTextColumn
    {
        protected override object PrepareCellForEdit(FrameworkElement editingElement, RoutedEventArgs editingEventArgs)
        {
            TextBox edit = editingElement as TextBox;

            if (edit != null) edit.PreviewTextInput += OnPreviewTextInput;

            return base.PrepareCellForEdit(editingElement, editingEventArgs);
        }

        private void OnPreviewTextInput(object sender, System.Windows.Input.TextCompositionEventArgs e)
        {
            int value;

            if (!int.TryParse(e.Text, out value))
                e.Handled = true;
        }
    }