• GridView中如何实现导出含DropdownList、TextBox，实现分页及导出Excel数据

    前台代码 
     1 <%@ Page Language="C#" AutoEventWireup="true"  EnableEventValidation = "false" CodeFile="DropDownLIst.aspx.cs" Inherits="_20100608_Default" %>
 2 
 3 <%@ Register assembly="AspNetPager" namespace="Wuqi.Webdiyer" tagprefix="webdiyer" %>
 4 
 5 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
 6 
 7 <html xmlns="http://www.w3.org/1999/xhtml">
 8 <head runat="server">
 9 <title></title>
10 </head>
11 <body>
12 <form id="form1" runat="server">
13 <div>
14 <asp:GridView ID="grd" runat="server" BackColor="White" BorderColor="#E7E7FF" 
15 BorderStyle="None" BorderWidth="1px" CellPadding="3" 
16 GridLines="Horizontal" AutoGenerateColumns="False">
17 <RowStyle BackColor="#E7E7FF" ForeColor="#4A3C8C"  />
18 <Columns>
19 
20 
21 <asp:BoundField DataField="ID" />
22 <asp:BoundField DataField="Name" />
23 <asp:TemplateField>
24 <ItemTemplate>
25 <asp:DropDownList  runat="server" ID="ddl" Width="50px"  AutoPostBack="true">
26 <asp:ListItem>1</asp:ListItem>
27 <asp:ListItem Selected="True">2</asp:ListItem>
28 </asp:DropDownList></ItemTemplate>
29 </asp:TemplateField >
30 <asp:TemplateField HeaderText="123">
31 <ItemTemplate>
32 <asp:TextBox ID="txt" runat="server" ></asp:TextBox></ItemTemplate>
33 </asp:TemplateField>
34 
35 </Columns>
36 <FooterStyle BackColor="#B5C7DE" ForeColor="#4A3C8C" />
37 <PagerStyle BackColor="#E7E7FF" ForeColor="#4A3C8C" HorizontalAlign="Right" />
38 <SelectedRowStyle BackColor="#738A9C" Font-Bold="True" ForeColor="#F7F7F7" />
39 <HeaderStyle BackColor="#4A3C8C" Font-Bold="True" ForeColor="#F7F7F7" />
40 <AlternatingRowStyle BackColor="#F7F7F7" />
41 </asp:GridView>
42 <asp:Button ID="btnDataToExcel" runat="server" Text="导入Excel" Width="166px" 
43 onclick="btnDataToExcel_Click"  />
44 <webdiyer:AspNetPager ID="PagerNet" runat="server"  PageSize="5" 
45 onpagechanged="PagerNet_PageChanged">
46 </webdiyer:AspNetPager>
47 </div>
48 </form>
49 </body>
50 </html>

    后台代码：

    数据绑定 
     1 public partial class _20100608_Default : System.Web.UI.Page
 2 {
 3 DataSet ds=DBAccess.ExecuteDataset("Select row_number() over(order by Id) as num, * from person");
 4 protected void Page_Load(object sender, EventArgs e)
 5 {
 6 if (!IsPostBack)
 7 {
 8 OnBind();
 9 }
10 }
11 private void OnBind()
12 {
13 PagerNet.RecordCount= 12;
14 DataView  tb = ds.Tables[0].DefaultView;
15     tb.RowFilter = "num >= " + PagerNet.StartRecordIndex+" and  num <= " +PagerNet.EndRecordIndex ;
16 //grd.DataSource = DBAccess.ExecuteDataset("select * from (Select row_number() over(order by Id) as num, * from xls) n  where  n.num between " + PagerNet.StartRecordIndex + "and " + PagerNet.EndRecordIndex);
17 grd.DataSource = tb;
18 grd.DataBind();
19 for (int j = 0; j < grd.Rows.Count; j++)
20 {
21 DropDownList drp = grd.Rows[j].FindControl("ddl") as DropDownList;
22 drp.Items.Insert(0,"AA");
23 }
24 }
    重点：Textbox等的显示 
    public void DisableControls(GridView gv)
         {
             for (int i = 0; i < gv.Rows.Count; i++)
             {
                 //dropdownlist
                 DropDownList drp = grd.Rows[i].FindControl("ddl") as DropDownList;
                 Label lb = new Label();
                 lb.Text = drp.SelectedItem.Text;
                 grd.Rows[i].Cells[2].Controls.Add(lb);
                 grd.Rows[i].Cells[2].Controls.RemoveAt(1); ;
                 //TextBox
                 TextBox txt = grd.Rows[i].FindControl("txt") as TextBox;
                 lb = new Label();
                 lb.Text = txt.Text;
                 grd.Rows[i].Cells[3].Controls.Add(lb);
                 grd.Rows[i].Cells[3].Controls.RemoveAt(1); ;
             }
         }
    导出事件 
     1 protected void btnDataToExcel_Click(object sender, EventArgs e)
 2         {
 3             StringWriter objStringWriter = new StringWriter();
 4             HtmlTextWriter objHtmlTextWriter = new HtmlTextWriter(objStringWriter);
 5             this.grd.AllowPaging = false;
 6             grd.DataSource = ds;
 7             grd.DataBind();
 8             DisableControls(grd);
 9             grd.RenderControl(objHtmlTextWriter);
10             string style = @"<html><head><meta http-equiv=""Content-Type"" content=""text/html; charset=utf-8"" /><style> .text { mso-number-format:\@; } </style></head><body>";
11             Response.Clear();
12             Response.Buffer = true;
13             Response.AppendHeader("Content-Disposition", "attachment;filename=123.xls");
14             Response.ContentType = "application/ms-excel ";
15             Response.Write(style);
16             Response.Write(objStringWriter.ToString());
17             Response.Write("</body></html>");
18             Response.End();
19             OnBind();
20         }
21         public override void VerifyRenderingInServerForm(System.Web.UI.Control control)
22         {
23             //== 處理 GridView的控制項。 'GridView' 必須置於有 runat=server 的表單標記之中
24             //== http://msdn.microsoft.com/zh-tw/library/system.web.ui.page.verifyrenderinginserverform(VS.80).aspx
25             //—註解：或是在 Web.Config檔案裡面，增加這一行<pages enableEventValidation ="false" ></pages> 就可以免除上面這個事件。
26         }
27         protected void PagerNet_PageChanged(object sender, EventArgs e)
28         {
29             OnBind();
30         }

    自己的项目：

    image

    image

    前台的一部分 
     1 <asp:GridView ID="gridView" runat="server" AllowPaging="True" Width="100%" CellPadding="3"
 2         OnPageIndexChanging="gridView_PageIndexChanging" BorderWidth="1px" DataKeyNames="payid"
 3         OnRowDataBound="gridView_RowDataBound" RowStyle-HorizontalAlign="Center" OnRowCreated="gridView_OnRowCreated"
 4         OnRowEditing="gridView_RowEditing" AutoGenerateColumns="False">
 5         <Columns>
 6             <%--1.序列号--%>
 7             <asp:TemplateField HeaderText="序列号" ShowHeader="False" Visible="false">
 8                 <ItemTemplate>
 9                     <asp:Label ID="lab_Payid" runat="server" Text='<%# Bind("payid") %>' Width="70"></asp:Label>
10                 </ItemTemplate>
11             </asp:TemplateField>
12             <%--2.选择--%>
13             <asp:TemplateField ControlStyle-Width="30" HeaderText="选择">
14                 <ItemTemplate>
15                     <asp:CheckBox ID="DeleteThis" onclick="javascript:CCA(this);" runat="server" />
16                 </ItemTemplate>
17                 <ControlStyle Width="30px"></ControlStyle>
18             </asp:TemplateField>
19             <%-- 3.月份--%>
20             <asp:TemplateField HeaderText="月份" SortExpression="dataMoth">
21                 <ItemTemplate>
22                     <% if (this.ddl_YesNo_State.SelectedValue == "未发放")
23                        {%>
24                     <asp:Label ID="Label1" runat="server" Text='<%# subString((DateTime.Now.ToString("yyyy年MM月")).ToString())%>'
25                         Width="70"></asp:Label>
26                     <%}
27                        else
28                        {
29                     %>
30                     <asp:Label ID="Label4" runat="server" Text='<%# subString((Eval("dataMoth")).ToString())%>'
31                         Width="70"></asp:Label>
32                     <%} %>
33                 </ItemTemplate>
34                 <EditItemTemplate>
35                     <asp:TextBox ID="TextBox1" runat="server" Text='<%# Bind("dataMoth") %>'></asp:TextBox>
36                 </EditItemTemplate>
37                 <ItemStyle HorizontalAlign="Center" />
38             </asp:TemplateField>
39             <%--4.部门--%>
40             <asp:TemplateField HeaderText="部门" SortExpression="departmentName">
41                 <ItemTemplate>
42                     <asp:Label ID="Label2" runat="server" Text='<%# Bind("departmentName") %>' Width="70"></asp:Label>
43                 </ItemTemplate>
44                 <EditItemTemplate>
45                     <asp:TextBox ID="TextBox2" runat="server" Text='<%# Bind("departmentName") %>'></asp:TextBox>
46                 </EditItemTemplate>
47                 <ItemStyle HorizontalAlign="Center" />
48             </asp:TemplateField>
49             <%--5.姓名--%>
50             <asp:TemplateField HeaderText="姓名" SortExpression="EName">
51                 <ItemTemplate>
52                     <asp:Label ID="Label3" runat="server" Text='<%# Bind("EName") %>' Width="70"></asp:Label>
53                 </ItemTemplate>
54                 <EditItemTemplate>
55                     <asp:TextBox ID="TextBox3" runat="server" Text='<%# Bind("EName") %>'></asp:TextBox>
56                 </EditItemTemplate>
57                 <ItemStyle HorizontalAlign="Center" />
58             </asp:TemplateField>
59             <%--6.基本工资--%>
60             <asp:TemplateField HeaderText="基本工资" SortExpression="basePay">
61                 <ItemTemplate>
62                     <asp:TextBox ID="txt_basePay" runat="server" Text='<%# Bind("basePay", "{0:0.00}") %>'
63                         Width="70"></asp:TextBox>
64                 </ItemTemplate>
65                 <EditItemTemplate>
66                     <asp:TextBox ID="TextBox4" runat="server" Text='<%# Bind("basePay", "{0:000.00}") %>'></asp:TextBox>
67                 </EditItemTemplate>
68                 <ItemStyle HorizontalAlign="Center" />
69             </asp:TemplateField>
    后台的一部分 
     1         #region 导入Excel
 2 
 3         protected void btn_Excel_Click(object sender, EventArgs e)
 4         {
 5             Export("application/ms-excel", "工资表.xls");
 6         }
 7 
 8         public void DisableControls(GridView gv)
 9         {
10             for (int i = 0; i < gv.Rows.Count; i++)
11             {
12                 TextBox txt = gridView.Rows[i].FindControl("txt_basePay") as TextBox;
13                 Label lb = new Label();
14                 lb.Text = txt.Text;
15                 gridView.Rows[i].Cells[5].Controls.Add(lb);
16                 gridView.Rows[i].Cells[5].Controls.RemoveAt(1); ;
17             }
18         }
19 
20         private void Export(string FileType, string FileName)
21         {
22             //GridView导出到Excel,导出所有页   
23             Response.Charset = "GB2312";
24             Response.ContentEncoding = System.Text.Encoding.UTF8;//换成UTF7编码出现乱码   
25             Response.AppendHeader("Content-Disposition", "attachment;filename=" + HttpUtility.UrlEncode(FileName, System.Text.Encoding.UTF8).ToString());
26             Response.ContentType = FileType;
27             this.EnableViewState = false;
28             StringWriter tw = new StringWriter();
29             HtmlTextWriter hw = new HtmlTextWriter(tw);
30 
31             this.gridView.AllowPaging = false;//取消分页   
32             this.gridView.AllowSorting = false;//取消排序   
33             //this.GridView1.AutoGenerateColumns = true;//取消自动生成列  
34             if (this.ddl_YesNo_State.SelectedValue == "未发放")
35             {
36                 BindData();
37             }
38             else
39             {
40                 BindData_Save();
41             }
42             DisableControls(gridView);
43             //GridView的独立绑定函数 
44 
45             //让一列不显示的方法
46             //this.gridView.Columns[0].Visible = false;
47             //this.gridView.Columns[7].Visible = false;
48             //this.gridView.Columns[6].Visible = false;
49             gridView.RenderControl(hw);
50             Response.Write(tw.ToString());
51             Response.End();
52         }
53 
54         //要导出EXCEL 必须重写VerifyRenderingInServerForm
55         public override void VerifyRenderingInServerForm(Control control)
56         {
57 
58         }
59 
60         #endregion
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  • 原文地址：https://www.cnblogs.com/tangge/p/2522843.html
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