如何為 DataGrid 列單元格添加邊框

Question

我在 WPF DataGrid 中顯示數據，第一列顯示靜態文本“View”。 我添加了下面的代碼，使文本看起來像一個按鈕。 我不想做很多工作來創建按鈕列自定義模板。 這幾乎是有效的； 文本居中，邊框繪制。 唯一不工作的是背景沒有出現 - 我仍然可以看到底層交替的行顏色。 我還需要做些什么來激活背景顏色，還是因為 TextBlock 嵌套在 DataGridCell 和（我認為）其他一些對象中而出現問題？

[我也試過用 TextBlock.BackgroundProperty 創建背景設置器，但這也不起作用。 我嘗試將 BackgroundProperty 設置為 ImageBrush，這會更好，但它找不到我的圖像位置。]

 private void dgvDetail_AutoGeneratingColumn(object sender, DataGridAutoGeneratingColumnEventArgs e) { string sHeader = e.Column.Header.ToString(); if (sHeader.Trim().ToLower() == "view") { e.Column.CellStyle = GetViewColumnStyle(); } } private Style GetViewColumnStyle() { Style oStyle = new Style(typeof(DataGridCell)); Setter oTextAlignment = new Setter(TextBlock.TextAlignmentProperty, TextAlignment.Center); oStyle.Setters.Add(oTextAlignment); Setter oBackground = new Setter(DataGridCell.BackgroundProperty, Brushes.LightGray); oStyle.Setters.Add(oBackground); Setter oForeground = new Setter(DataGridCell.ForegroundProperty, Brushes.Black); oStyle.Setters.Add(oForeground); Setter oBorderBrush = new Setter(DataGridCell.BorderBrushProperty, Brushes.Black); oStyle.Setters.Add(oBorderBrush); Setter oMargin = new Setter(DataGridCell.MarginProperty, new Thickness(2, 2, 2, 2)); oStyle.Setters.Add(oMargin); return oStyle; }

Answer 1

您只是在為里面的TextBlock樣式。 您應該設置DataGridCell.Template ：

    private Style GetViewColumnStyle()
    {
        // The TextBlock
        FrameworkElementFactory textBlockFactory = new FrameworkElementFactory(typeof(TextBlock));
        // DataBinding for TextBlock.Text
        Binding textBinding = new Binding("YourTextBindingPath");
        textBlockFactory.SetValue(TextBlock.TextProperty, textBinding);
        //Other TextBlock attributes
        textBlockFactory.SetValue(TextBlock.TextAlignmentProperty, TextAlignment.Center);
        textBlockFactory.SetValue(TextBlock.BackgroundProperty, Brushes.LightGray);
        textBlockFactory.SetValue(TextBlock.ForegroundProperty, Brushes.Black);
        textBlockFactory.SetValue(TextBlock.MarginProperty, new Thickness(2, 2, 2, 2));

        // The Border around your TextBlock
        FrameworkElementFactory borderFactory = new FrameworkElementFactory(typeof(Border));
        borderFactory.SetValue(Border.BorderBrushProperty, Brushes.Black);
        borderFactory.SetValue(Border.BorderThicknessProperty, new Thickness(1, 1, 1, 1));
        // Add The TextBlock to the Border as a child element
        borderFactory.AppendChild(textBlockFactory);

        // The Template for each DataGridCell = your Border that contains your TextBlock
        ControlTemplate cellTemplate = new ControlTemplate();
        cellTemplate.VisualTree = borderFactory;

        // Setting Style.Template
        Style oStyle = new Style(typeof(DataGridCell));
        Setter templateSetter = new Setter(DataGridCell.TemplateProperty, cellTemplate);
        oStyle.Setters.Add(templateSetter);
        return oStyle;
    }