gridview 过长字段显示...

1.用一个label来存放你的数据:

<asp:TemplateField HeaderText="姓名">
    <ItemTemplate>
          <asp:Label ID="Label14" runat="server" Text='<%# Eval("RealName").ToString().Length>=4?Eval("RealName").ToString().Substring(0,4)+"...":Eval("RealName").ToString() %>'  ToolTip='<%# Eval("RealName")%>'></asp:Label>
      </ItemTemplate>
      <ItemStyle Width="200px" />
</asp:TemplateField>

2.后台事件中编写

protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
    {
        for (int g = 0; g < GridView1.Rows.Count; g++)
        {
            GridView1.Rows[g].Cells[7].ToolTip = GridView1.Rows[g].Cells[7].Text;
            if (GridView1.Rows[g].Cells[7].Text.Length > 8)
            GridView1.Rows[g].Cells[7].Text = GridView1.Rows[g].Cells[7].Text.Substring(0, 8) + "...";
        }      
    }