GridView 无数据时，绑定提示

 1  private void BindData()
 2     {
 3         DataTable dt = DAO.RunSQLReturnDt(this.getsql());
 4         int dtcount = dt.Rows.Count;
 5         if (dtcount == 0)
 6         {
 7             dt.Rows.Add(dt.NewRow());
 8         } 
 9         DataView dv = dt.DefaultView;
10         //对用于分页的类的引用
11         PagedDataSource pds = new PagedDataSource();
12         pds.DataSource = dv;//设置数据源(DataTable类型)
13         pds.AllowPaging = true;
14         //每页显示的行数
15         pds.PageSize = 20;
16         AspNetPager1.RecordCount = dv.Count;
17         pds.CurrentPageIndex = AspNetPager1.CurrentPageIndex - 1;
18         pds.PageSize = AspNetPager1.PageSize;
19         GridView1.DataSource = pds;
20         GridView1.DataBind();
21         if (dtcount <= 0)
22         {
23             int colnumcount = dt.Columns.Count;
24             GridView1.Rows[0].Cells.Clear();
25             GridView1.Rows[0].Cells.Add(new TableCell());
26             GridView1.Rows[0].Cells[0].ColumnSpan = colnumcount;
27             GridView1.Rows[0].Cells[0].Text = "没有相关记录";
28             GridView1.Rows[0].Cells[0].Style.Add("color", "red");
29         }
30 
31 
32     }

页面正常显示

 1 <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" CssClass="tablelist" GridLines="None" DataKeyNames="C_ID" OnRowDataBound="GridView1_RowDataBound">
 2                     <Columns>
 3                         <asp:BoundField DataField="C_AppNum" HeaderText="入库编号" SortExpression="C_AppNum">
 4                             <ItemStyle HorizontalAlign="Center" />
 5                         </asp:BoundField>
 6 
 7 
 8                         <asp:BoundField DataField="C_AppDate" HeaderText="申请时间" SortExpression="C_AppDate">
 9                             <ItemStyle HorizontalAlign="Center" />
10                         </asp:BoundField>
11                         <asp:TemplateField HeaderText="申请部门">
12                             <ItemTemplate>
13                           <%# XC.Depart.GetDepartName(Eval("C_AppDepartID").ToString()) %>
14                             </ItemTemplate>
15                             <ItemStyle HorizontalAlign="Center" />
16                         </asp:TemplateField>
17                         <asp:TemplateField HeaderText="申请人">
18                             <ItemTemplate>
19                                 <%# XC.User.GetUserName(Eval("C_AppUserID").ToString())%>
20                             </ItemTemplate>
21                             <ItemStyle HorizontalAlign="Center" />
22                         </asp:TemplateField>
23                         <asp:BoundField DataField="C_Status" HeaderText="状态" SortExpression="C_Status">
24                             <ItemStyle HorizontalAlign="Center" />
25                         </asp:BoundField>
26                         <asp:BoundField DataField="C_AuditState" HeaderText="审核状态" SortExpression="C_AuditState">
27                             <ItemStyle HorizontalAlign="Center" />
28                         </asp:BoundField>
29                        
30                     </Columns>
31                     <HeaderStyle HorizontalAlign="center" />
32                 </asp:GridView>

效果