c# - datagridview 中的竖排文本

Question

我想在标题单元格中以垂直方向显示文本。我该怎么做？

谢谢

Answer 1

您可以使用标题的自定义单元格绘制来实现所需的结果。

为了回答您要求将文本与单元格底部对齐的方法的评论，我在我的代码中添加了评论。他们希望是清楚的。

您需要以下代码（例如在初始化组件后的 Form_Load 中）

dataGridView1.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.EnableResizing;
dataGridView1.ColumnHeadersHeight = 50;
dataGridView1.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.AllCellsExceptHeader;

// Here we attach an event handler to the cell painting event
dataGridView1.CellPainting += new DataGridViewCellPaintingEventHandler(dataGridView1_CellPainting);

接下来，您需要类似以下代码的内容：

void dataGridView1_CellPainting(object sender, DataGridViewCellPaintingEventArgs e)
{
    // check that we are in a header cell!
    if (e.RowIndex == -1 && e.ColumnIndex >= 0)
    {
        e.PaintBackground(e.ClipBounds, true);
        Rectangle rect = this.dataGridView1.GetColumnDisplayRectangle(e.ColumnIndex, true);
        Size titleSize = TextRenderer.MeasureText(e.Value.ToString(), e.CellStyle.Font);
        if (this.dataGridView1.ColumnHeadersHeight < titleSize.Width)
        {
            this.dataGridView1.ColumnHeadersHeight = titleSize.Width;
        }

        e.Graphics.TranslateTransform(0, titleSize.Width);
        e.Graphics.RotateTransform(-90.0F);

        // This is the key line for bottom alignment - we adjust the PointF based on the 
        // ColumnHeadersHeight minus the current text width. ColumnHeadersHeight is the
        // maximum of all the columns since we paint cells twice - though this fact
        // may not be true in all usages!   
        e.Graphics.DrawString(e.Value.ToString(), this.Font, Brushes.Black, new PointF(rect.Y - (dataGridView1.ColumnHeadersHeight - titleSize.Width) , rect.X));

        // The old line for comparison
        //e.Graphics.DrawString(e.Value.ToString(), this.Font, Brushes.Black, new PointF(rect.Y, rect.X));


        e.Graphics.RotateTransform(90.0F);
        e.Graphics.TranslateTransform(0, -titleSize.Width);
        e.Handled = true;
    }
}

Answer 2

更简单有效的渲染器

通过设计器或使用这行代码附​​加事件

dataGridView1.CellPainting += new DataGridView1_CellPainting(dataGridView1_CellPainting);

绘制旋转文本的事件处理程序

private void DataGridView1_CellPainting(object sender, DataGridViewCellPaintingEventArgs e) {
    // Vertical text from column 0, or adjust below, if first column(s) to be skipped
    if (e.RowIndex == -1 && e.ColumnIndex >= 0) {
        e.PaintBackground(e.CellBounds, true);
        e.Graphics.TranslateTransform(e.CellBounds.Left , e.CellBounds.Bottom);
        e.Graphics.RotateTransform(270);
        e.Graphics.DrawString(e.FormattedValue.ToString(),e.CellStyle.Font,Brushes.Black,5,5);
        e.Graphics.ResetTransform();
        e.Handled = true;
    }
}

Answer 3

DataGrid d = new DataGrid();
d.Columns[0].HeaderStyle.VerticalAlign = VerticalAlign.Bottom;

如果您正在寻找gridview，那么您的情况是这样的：-

GridView gv = new GridView ();
gv.Columns[0].ItemStyle.VerticalAlign = VerticalAlign.Bottom;

如果您正在寻找 datagridview，那么您的情况如下：- 创建一个 datagridview 对象。

gv.Columns["ColumnName"].HeaderCell.Style.Alignment = DataGridViewContentAlignment.BottomCenter;

Answer 4

void dataGridView1_CellPainting(object sender, DataGridViewCellPaintingEventArgs e)
   {
           if (e.RowIndex == -1 && e.ColumnIndex >= 0)
           {
               e.PaintBackground(e.ClipBounds, true);
               Rectangle rect =
this.dataGridView1.GetColumnDisplayRectangle(e.ColumnIndex, true);
               Size titleSize =
TextRenderer.MeasureText(e.Value.ToString(), e.CellStyle.Font);
               if (this.dataGridView1.ColumnHeadersHeight <
titleSize.Width)
                   this.dataGridView1.ColumnHeadersHeight =
titleSize.Width;

               e.Graphics.TranslateTransform(0, titleSize.Width);
               e.Graphics.RotateTransform(-90.0F);

               e.Graphics.DrawString(e.Value.ToString(), this.Font,
Brushes.Orange, new PointF(rect.Y, rect.X));

               e.Graphics.RotateTransform(90.0F);
               e.Graphics.TranslateTransform(0, -titleSize.Width);
               e.Handled = true;
           }
  }

In addition, you could set the AutoSizeColumnsMode property of the
DataGridView to AllCellsExceptHeader in order to make the DataGridView
compact.