Question

我有一个datagrid，其列属性必须以编程方式在代码后面更改为此我使用事件

AutoGeneratingColumn="Datagrid_AutoGeneratingColumn"

我做的事情：

 private void Datagrid_AutoGeneratingColumn(object sender, DataGridAutoGeneratingColumnEventArgs e)
{
  string strDatagridName = (sender as DataGrid).Name;
  switch (strDatagridName.ToUpper())
  {
    case "DTGPPTAB1":
    case "DTGPPTAB3":
      switch (e.PropertyName.ToUpper())
      {
        /*----Visible ----*/
        case "DESCRIPTION": e.Column.Header = Langs.Word(Langs.eWords.Description); e.Column.Width = 33; break;<-------------here
        case "NOTE": e.Column.Header = Langs.Word(Langs.eWords.Notes);  break;
        case "PARTPROGRAMFILENAME": e.Column.Header = Langs.Word(Langs.eWords.PPfilename);  break;

          /*----Hidden ----*/
        case "LSTBLADES": e.Column.Header = Langs.Word(Langs.eWords.Blades); break;
        case "LSTMYIMAGES": e.Column.Header = Langs.Word(Langs.eWords.Image); e.Column.Visibility = Visibility.Collapsed;  break;
        case "LSTMYSOUNDFILES": e.Column.Header = Langs.Word(Langs.eWords.Sound); e.Column.Visibility = Visibility.Collapsed; break;
        case "BARCODE": e.Column.Header = Langs.Word(Langs.eWords.Barcode); e.Column.Visibility = Visibility.Collapsed; break;
        case "PROGRAMTRACEFIELDS": e.Column.Header = Langs.Word(Langs.eWords.ProgramTracefields); e.Column.Visibility = Visibility.Collapsed; break;
        default: e.Column.Header = e.PropertyName; break;
      }
      break;
  }

一切正常。我需要的是描述案例。在这里，我可以设置以像素为单位的列，但我不能按比例设置它，例如33％。

所以简而言之，我想设置前3列，将整个数据网格空间划分为33％33％33％。所以在％而不是像素。感谢名单

Answer 1

您需要将Width设置为double，而不是将DataGridLength设置为e.Column.Width = new DataGridLength(1, DataGridLengthUnitType.Star);。这是一个例子：

1*

将这些列设置为{{1}}应足以公平地分配宽度（3列为33％）。

C＃WPF如何在代码后面按比例调整datagrid列

1 个答案: