使用颜色代码从Gridview导出为Excel
我在GridView使用基于一些百分比逻辑的颜色代码。 但是，导出到Excel我不知道如何维护Excel中的这种颜色代码。 请指导
以下是RowDataBound的代码
protected void Grd_QADetails_RowDataBound(object sender, GridViewRowEventArgs e) { if (e.Row.RowType == DataControlRowType.DataRow) { var dataRowView = e.Row.DataItem as DataRowView; DataRow row = dataRowView.Row; var Current = (row["Current Month Percentage"] as double?) ?? null; double? Yellow = (double?)Convert.ToDouble(row["Yellow"]); double? Green = (double?)Convert.ToDouble(row["Green"]); if (Current != null) { if (Current >= Green) e.Row.Cells[6].BackColor = Color.Green; if (Current >= Yellow && Current < Green) e.Row.Cells[6].BackColor = Color.Yellow; if (Current < Yellow) e.Row.Cells[6].BackColor = Color.Red; } } }
以下是Export to Excel的代码
private void ExportthroughWeb(DataTable dt, string FileName) { try { if (dt.Rows.Count > 0) { string filename = FileName + ".xls"; using (System.IO.StringWriter tw = new System.IO.StringWriter()) { System.Web.UI.HtmlTextWriter hw = new System.Web.UI.HtmlTextWriter(tw); DataGrid dgGrid = new DataGrid(); dgGrid.DataSource = dt; dgGrid.DataBind(); //Get the HTML for the control. dgGrid.RenderControl(hw); //Write the HTML back to the browser. Response.ContentType = "application/vnd.ms-excel"; Response.AppendHeader("Content-Disposition", "attachment; filename=" + filename + ""); this.EnableViewState = false; Response.Write("<meta http-equiv=Content-Type content=\"text/html; charset=utf-8\">" + Environment.NewLine); Response.Write(tw.ToString()); Response.Write("</body>"); Response.Write("</html>"); Response.End(); } } }
您需要为RowDataBound附加一个事件处理程序
请修改您的代码，如下所示：
private void ExportthroughWeb(DataTable dt, string FileName) { try { if (dt.Rows.Count > 0) { string filename = FileName + ".xls"; using (System.IO.StringWriter tw = new System.IO.StringWriter()) { System.Web.UI.HtmlTextWriter hw = new System.Web.UI.HtmlTextWriter(tw); GridView dgGrid = new GridView(); dgGrid.DataSource = dt; dgGrid.RowDataBound += new GridViewRowEventHandler(Grd_QADetails_RowDataBound); dgGrid.DataBind(); //Get the HTML for the control. dgGrid.RenderControl(hw); //Write the HTML back to the browser. Response.ContentType = "application/vnd.ms-excel"; Response.AppendHeader("Content-Disposition", "attachment; filename=" + filename + ""); this.EnableViewState = false; Response.Write("<meta http-equiv=Content-Type content=\"text/html; charset=utf-8\">" + Environment.NewLine); Response.Write(tw.ToString()); Response.Write("</body>"); Response.Write("</html>"); Response.End(); } }
希望这可以帮助..
我testing的例子：更新
<%@ Page Title="Home Page" Language="C#" MasterPageFile="~/Site.master" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="webapp1._Default" %> <asp:Content ID="HeaderContent" runat="server" ContentPlaceHolderID="HeadContent"> </asp:Content> <asp:Content ID="BodyContent" runat="server" ContentPlaceHolderID="MainContent"> <asp:GridView runat="server" ID="grdDetails" OnRowDataBound="Grd_QADetails_RowDataBound"> </asp:GridView> <asp:Button runat="server" ID="btnSubmit" OnClick="ExportToGrid"/> </asp:Content>
代码后面：
using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; using System.Data; using System.Drawing; namespace webapp1 { public partial class _Default : System.Web.UI.Page { DataTable dtDetails = new DataTable(); protected void Grd_QADetails_RowDataBound(object sender, GridViewRowEventArgs e) { if (e.Row.RowType == DataControlRowType.DataRow) { var dataRowView = e.Row.DataItem as DataRowView; DataRow row = dataRowView.Row; var Current = (row["Dosage"] as int?) ?? null; if (Current != null) { if (Current >= 1 && Current < 10) e.Row.Cells[1].BackColor = Color.Green; else if (Current >= 10 && Current < 20) e.Row.Cells[1].BackColor = Color.Yellow; else e.Row.Cells[1].BackColor = Color.Red; } } } protected void Page_Load(object sender, EventArgs e) { dtDetails.Columns.Add("Dosage", typeof(int)); dtDetails.Columns.Add("Drug Suggested", typeof(string)); dtDetails.Columns.Add("Patient Name", typeof(string)); dtDetails.Columns.Add("Date", typeof(DateTime)); dtDetails.Columns.Add("Type", typeof(string)); dtDetails.Columns.Add("Payment Mode", typeof(string)); dtDetails.Columns.Add("Appointment Status", typeof(string)); dtDetails.Columns.Add("Location", typeof(string)); dtDetails.Rows.Add(1, "Indocin", "David", DateTime.Now, "Casuality", "Cash", "Pending", "Kolkatta"); dtDetails.Rows.Add(2, "Enebrel", "Sam", DateTime.Now, "Casuality", "Cash", "Pending", "Kolkatta"); dtDetails.Rows.Add(3, "Hydralazine", "Christoff", DateTime.Now, "Casuality", "Cash", "Pending", "Kolkatta"); dtDetails.Rows.Add(4, "Combivent", "Janet", DateTime.Now, "Casuality", "Cash", "Pending", "Kolkatta"); dtDetails.Rows.Add(5, "Dilantin", "Melanie", DateTime.Now, "Casuality", "Cash", "Pending", "Kolkatta"); dtDetails.Rows.Add(6, "Indocin", "David", DateTime.Now, "Casuality", "Cash", "Pending", "Kolkatta"); dtDetails.Rows.Add(7, "Enebrel", "Sam", DateTime.Now, "Casuality", "Cash", "Pending", "Kolkatta"); dtDetails.Rows.Add(8, "Hydralazine", "Christoff", DateTime.Now, "Casuality", "Cash", "Pending", "Kolkatta"); dtDetails.Rows.Add(9, "Combivent", "Janet", DateTime.Now, "Casuality", "Cash", "Pending", "Kolkatta"); dtDetails.Rows.Add(10, "Dilantin", "Melanie", DateTime.Now, "Casuality", "Cash", "Pending", "Kolkatta"); dtDetails.Rows.Add(11, "Indocin", "David", DateTime.Now, "Casuality", "Cash", "Pending", "Kolkatta"); dtDetails.Rows.Add(12, "Enebrel", "Sam", DateTime.Now, "Casuality", "Cash", "Pending", "Kolkatta"); dtDetails.Rows.Add(13, "Hydralazine", "Christoff", DateTime.Now, "Casuality", "Cash", "Pending", "Kolkatta"); dtDetails.Rows.Add(14, "Combivent", "Janet", DateTime.Now, "Casuality", "Cash", "Pending", "Kolkatta"); dtDetails.Rows.Add(15, "Dilantin", "Melanie", DateTime.Now, "Casuality", "Cash", "Pending", "Kolkatta"); dtDetails.Rows.Add(16, "Indocin", "David", DateTime.Now, "Casuality", "Cash", "Pending", "Kolkatta"); dtDetails.Rows.Add(17, "Enebrel", "Sam", DateTime.Now, "Casuality", "Cash", "Pending", "Kolkatta"); dtDetails.Rows.Add(18, "Hydralazine", "Christoff", DateTime.Now, "Casuality", "Cash", "Pending", "Kolkatta"); dtDetails.Rows.Add(19, "Combivent", "Janet", DateTime.Now, "Casuality", "Cash", "Pending", "Kolkatta"); dtDetails.Rows.Add(20, "Dilantin", "Melanie", DateTime.Now, "Casuality", "Cash", "Pending", "Kolkatta"); dtDetails.Rows.Add(21, "Indocin", "David", DateTime.Now, "Casuality", "Cash", "Pending", "Kolkatta"); dtDetails.Rows.Add(22, "Enebrel", "Sam", DateTime.Now, "Casuality", "Cash", "Pending", "Kolkatta"); dtDetails.Rows.Add(23, "Hydralazine", "Christoff", DateTime.Now, "Casuality", "Cash", "Pending", "Kolkatta"); dtDetails.Rows.Add(24, "Combivent", "Janet", DateTime.Now, "Casuality", "Cash", "Pending", "Kolkatta"); dtDetails.Rows.Add(25, "Dilantin", "Melanie", DateTime.Now, "Casuality", "Cash", "Pending", "Kolkatta"); if (!IsPostBack) { grdDetails.DataSource = dtDetails; grdDetails.DataBind(); } } protected void ExportToGrid(object sender, EventArgs e) { ExportToGrid(dtDetails); } private void ExportToGrid(DataTable dt) { if (dt.Rows.Count > 0) { string filename = "Avinash" + ".xls"; using (System.IO.StringWriter tw = new System.IO.StringWriter()) { System.Web.UI.HtmlTextWriter hw = new System.Web.UI.HtmlTextWriter(tw); GridView dgGrid = new GridView(); dgGrid.DataSource = dt; dgGrid.RowDataBound += new GridViewRowEventHandler(Grd_QADetails_RowDataBound); dgGrid.DataBind(); //Get the HTML for the control. dgGrid.RenderControl(hw); //Write the HTML back to the browser. Response.ContentType = "application/vnd.ms-excel"; Response.AppendHeader("Content-Disposition", "attachment; filename=" + filename + ""); this.EnableViewState = false; Response.Write("<meta http-equiv=Content-Type content=\"text/html; charset=utf-8\">" + Environment.NewLine); Response.Write(tw.ToString()); Response.Write("</body>"); Response.Write("</html>"); Response.End(); } } } }![enter image description here][1] }
这里的链接，你会发现有帮助的。 只需相应地改变你的颜色条件。 http://gridview-excel.blogspot.in/2011/12/gridview-to-excel-in-aspnetc.html