asp.net中gridview匯出excel方法以及怎樣修改匯出的日期格式
阿新 • • 發佈：2019-02-10
<%@ Page Language="C#" AutoEventWireup="true" EnableEventValidation="false" CodeBehind="grid_excel_aspnet.aspx.cs" Inherits="FineUI.Examples.data.grid_excel_aspnet" %> <!DOCTYPE html> <html> <head runat="server"> <title></title> </head> <body> <form id="form1" runat="server"> <asp:GridView ID="GridView1" Width="900px" DataKeyNames="Id,Name" AutoGenerateColumns="False" runat="server"> <Columns> <asp:TemplateField> <ItemTemplate> <asp:Label ID="Label1" runat="server" Text='<%# Container.DataItemIndex + 1 %>'></asp:Label> </ItemTemplate> </asp:TemplateField> <asp:BoundField DataField="Name" HeaderText="姓名" /> <asp:TemplateField HeaderText="性別"> <ItemTemplate> <asp:Label ID="Label2" runat="server" Text='<%# GetGender(Eval("Gender")) %>'></asp:Label> </ItemTemplate> </asp:TemplateField> <asp:BoundField DataField="EntranceYear" HeaderText="入學年份" /> <asp:CheckBoxField DataField="AtSchool" HeaderText="是否在校" /> <asp:HyperLinkField HeaderText="所學專業" DataTextField="Major" DataTextFormatString="{0}" DataNavigateUrlFields="Major" DataNavigateUrlFormatString="http://gsa.ustc.edu.cn/search?q={0}" Target="_blank" /> <asp:ImageField DataImageUrlField="Group" DataImageUrlFormatString="~/res/images/16/{0}.png" HeaderText="分組"> </asp:ImageField> </Columns> </asp:GridView> <br /> <br /> <asp:Button ID="Button2" runat="server" Text="匯出為Excel檔案" OnClick="Button2_Click"> </asp:Button> <br /> <br /> <br /> </form> </body> </html>
using System; using System.Collections.Generic; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; using System.Data; using System.Text; using System.IO; using AspNet = System.Web.UI.WebControls; using System.Web.UI.HtmlControls; namespace FineUI.Examples.data { public partial class grid_excel_aspnet : PageBase { protected void Page_Load(object sender, EventArgs e) { if (!IsPostBack) { BindGrid(); } } #region BindGrid private void BindGrid() { DataTable table = DataSourceUtil.GetDataTable(); GridView1.DataSource = table; GridView1.DataBind(); } #endregion public override void VerifyRenderingInServerForm(Control control) { } protected void Button2_Click(object sender, EventArgs e) { BindGrid(); ResolveGridView(GridView1); Response.ClearContent(); Response.AddHeader("content-disposition", "attachment; filename=MyExcelFile.xls"); Response.ContentType = "application/excel"; Response.ContentEncoding = System.Text.Encoding.UTF8; StringWriter sw = new StringWriter(); HtmlTextWriter htw = new HtmlTextWriter(sw); GridView1.RenderControl(htw); Response.Write(sw.ToString()); Response.End(); } private void ResolveGridView(Control ctrl) { for (int i = 0; i < ctrl.Controls.Count; i++) { // 圖片的完整URL if (ctrl.Controls[i].GetType() == typeof(AspNet.Image)) { AspNet.Image img = ctrl.Controls[i] as AspNet.Image; img.ImageUrl = Request.Url.AbsoluteUri.Replace(Request.Url.AbsolutePath, Page.ResolveUrl(img.ImageUrl)); } // 將CheckBox控制元件轉化為靜態文字 if (ctrl.Controls[i].GetType() == typeof(AspNet.CheckBox)) { Literal lit = new Literal(); lit.Text = (ctrl.Controls[i] as AspNet.CheckBox).Checked ? "√" : "×"; ctrl.Controls.RemoveAt(i); ctrl.Controls.AddAt(i, lit); } if (ctrl.Controls[i].HasControls()) { ResolveGridView(ctrl.Controls[i]); } } } } }
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上報資料，要求出生日期必須是2001－01－01的格式， 但是匯出來的是2001/1/1處理辦法
開啟控制面板——區域和語言——格式——短日期格式，設定為：yyyy-MM-dd，所有表格就自動OK了！
如圖所示：
