数据网格视图中的垂直文本

本文关键字：垂直 文本 视图 数据网 网格 数据 | 更新日期: 2023-09-27 17:53:25

我想以垂直方向显示标题单元格中的文本。我该怎么做？

感谢

数据网格视图中的垂直文本

您可以使用标题的自定义单元格绘制来实现您想要的结果。

为了回答您的评论，询问如何将文本与单元格底部对齐，我在代码中添加了注释。希望他们是清白的。

您需要以下代码(比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);

接下来你需要类似以下代码的东西：

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;
    }
}

一个更简单、更有效的渲染器

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;
    }
}

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

如果你正在寻找网格视图，那么你的情况如下：-

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

如果你正在寻找datagridview，那么你的情况如下：-创建datagridview的对象。

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

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.
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