大家好，我是小十，我来为大家解答以上问题。Vertical align middle，verticalalign很多人还不知道，现在让我们一起来看看吧！

用后台代码+前台设计实现。

private void CreateHeader()

    {

    this.GridView1.HeaderRow.Cells.Clear();

    tdheader=new TableCell();

    tb=new Table();

    tb.Width = 720;

    tb.BorderWidth = 0;

    tb.CellPadding = 0;

    tb.CellSpacing = 0;

    tr=new TableRow();

    td = new TableCell();

    td.RowSpan = 2;

    td.HorizontalAlign = HorizontalAlign.Center;

    td.VerticalAlign = VerticalAlign.Middle;

    td.Width = 100;

    td.Text = "编号";

    tr.Cells.Add(td);

    td = new TableCell();

    td.RowSpan = 2;

    td.HorizontalAlign = HorizontalAlign.Center;

    td.VerticalAlign = VerticalAlign.Middle;

    td.Text = "值1";

    tr.Cells.Add(td);

    td = new TableCell();

    td.ColumnSpan = 2;

    td.HorizontalAlign = HorizontalAlign.Center;

    td.VerticalAlign = VerticalAlign.Middle;

    td.Text = "值2";

    tr.Cells.Add(td);

    tb.Rows.Add(tr);

    tr=new TableRow();

    td = new TableCell();

    td.HorizontalAlign = HorizontalAlign.Center;

    td.VerticalAlign = VerticalAlign.Middle;

    td.Width = 100;

    td.Text = "值3";

    tr.Cells.Add(td);

    td = new TableCell();

    td.HorizontalAlign = HorizontalAlign.Center;

    td.VerticalAlign = VerticalAlign.Middle;

    td.Width = 100;

    td.Text = "值4";

    tr.Cells.Add(td);

    tb.Rows.Add(tr);

    tdheader.Width = 720;

    tdheader.ColumnSpan = 4;

    tdheader.Controls.Add(tb);

    this.GridView1.HeaderRow.Cells.Add(tdheader);

    }

本文到此讲解完毕了，希望对大家有帮助。