在有些开发实践中，有时候为了页面美观的需要，需要将GridView填充成固定行数的表格，下面这个方法实现了这种填充的功能。此方法可以处理自动产生列和模版列。注意：由于时间关系，没有实现对完全空白数据的填充，呵呵，如果需要，可以自己添加哈：）！
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C#
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<%@ Page Language=”C#”%>
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<!DOCTYPE html PUBLIC “-//W3C//DTD XHTML 1.0 Transitional//EN”
“http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd”>
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<script runat=”server”>
// 计算数据，完全可以从数据看取得
ICollection CreateDataSourceByXianhuiMeng()
{
System.Data.DataTable dt = new System.Data.DataTable();
System.Data.DataRow dr;
dt.Columns.Add(new System.Data.DataColumn(“学生班级”, typeof(System.String)));
dt.Columns.Add(new System.Data.DataColumn(“学生姓名”, typeof(System.String)));
dt.Columns.Add(new System.Data.DataColumn(“语文”, typeof(System.Decimal)));
dt.Columns.Add(new System.Data.DataColumn(“数学”, typeof(System.Decimal)));
dt.Columns.Add(new System.Data.DataColumn(“英语”, typeof(System.Decimal)));
dt.Columns.Add(new System.Data.DataColumn(“计算机”, typeof(System.Decimal)));
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for (int i = 0; i < 8; i++)
{
System.Random rd = new System.Random(Environment.TickCount * i); ;
dr = dt.NewRow();
dr[0] = “班级” + i.ToString();
dr[1] = “【孟子E章】” + i.ToString();
dr[2] = System.Math.Round(rd.NextDouble() * 100, 2);
dr[3] = System.Math.Round(rd.NextDouble() * 100, 2);
dr[4] = System.Math.Round(rd.NextDouble() * 100, 2);
dr[5] = System.Math.Round(rd.NextDouble() * 100, 2);
dt.Rows.Add(dr);
}
System.Data.DataView dv = new System.Data.DataView(dt);
return dv;
}
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// 设置每页显示的行数
int TotalRowCount = 12;
// 自动填充的行数
int numCount = 0;
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
GridView1.DataSource = CreateDataSourceByXianhuiMeng();
GridView1.DataBind();
}
}
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protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
// 计算自动填充的行数
numCount++;
}
if (e.Row.RowType == DataControlRowType.Footer)
{
// 计算完毕，在此添加缺少的行
int toLeft = TotalRowCount – numCount;
int numCols = GridView1.Rows[0].Cells.Count;
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for (int i = 0; i < toLeft; i++)
{
GridViewRow row = new GridViewRow(-1, -1, DataControlRowType.EmptyDataRow, DataControlRowState.Normal);
for (int j = 0; j < numCols; j++)
{
TableCell cell = new TableCell();
cell.Text = “ ”;
row.Cells.Add(cell);
}
GridView1.Controls[0].Controls.AddAt(numCount + 1 + i, row);
}
}
}
</script>
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<html xmlns=”http://www.w3.org/1999/xhtml”>
<head runat=”server”>
<title>自动填充固定行数的 GridView</title>
</head>
<body>
<form id=”form1″ runat=”server”>
<asp:GridView ID=”GridView1″ runat=”server” OnRowDataBound=”GridView1_RowDataBound”
Font-Size=”12px” CellPadding=”3″>
<HeaderStyle BackColor=”#EDEDED” />
<Columns>
<asp:TemplateField HeaderText=”模版列”>
<ItemTemplate>
<%#Eval(“学生姓名”) %>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
</form>
</body>
</html>
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来源:孟宪会之精彩世界