我花了 5 天时间研究如何在 C# Visual Studio 网站中打印 DataList。我可以在 Web 项目中打印 DataList。看来，由于站点不像项目那样具有“命名空间”，微软只是没有费心使网站页面可打印。我有一个比较大的网站快要开发出来了，现在看来一个网站的主要功能是不可能的。我需要帮助！提前致谢。
PS 微软似乎会在他们将项目与站点进行比较的文献中提到这个小问题，但他们没有。
<%@ Page Title="" Language="C#" MasterPageFile="~/Site.Master" AutoEventWireup="true"
CodeBehind="PageLinkDetails.aspx.cs" Inherits="TestDataBase.PageLinkDetails" %>
<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="asp" %>
<asp:Content ID="Content1" ContentPlaceHolderID="HeadContent" runat="server">
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="MainContent" runat="server">
<div>
<asp:Panel ID="pnl1" runat="server">
<asp:SqlDataSource runat="server" ID="SqlDataSource1" ConnectionString="<%$ ConnectionStrings:Caribbean %>"
SelectCommand="SELECT * FROM [CaribbeanDirections] WHERE ([RecipeID] = @RecipeID)">
<SelectParameters>
<asp:QueryStringParameter Name="RecipeID" QueryStringField="RecipeID" Type="Int32" />
</SelectParameters>
</asp:SqlDataSource>
<asp:DataList ID="DataList1" runat="server" DataKeyField="DirectionID" DataSourceID="SqlDataSource1">
<ItemTemplate>
<asp:Label ID="NameLabel" runat="server" Text='<%# Eval("Name") %>' />
<br />
<br />
INGREDIENTS:<br />
<asp:Label ID="IngredientOneLabel" runat="server" Text='<%# Eval("IngredientOne") %>' />
<br />
<asp:Label ID="IngredientTwoLabel" runat="server" Text='<%# Eval("IngredientTwo") %>' />
<br />
<asp:Label ID="IngredientThreeLabel" runat="server" Text='<%# Eval("IngredientThree") %>' />
<br />
<asp:Label ID="IngredientFourLabel" runat="server" Text='<%# Eval("IngredientFour") %>' />
<br />
<asp:Label ID="IngredientFiveLabel" runat="server" Text='<%# Eval("IngredientFive") %>' />
<br />
<asp:Label ID="IngredientSixLabel" runat="server" Text='<%# Eval("IngredientSix") %>' />
<br />
<asp:Label ID="IngredientSevenLabel" runat="server" Text='<%# Eval("IngredientSeven") %>' />
<br />
<asp:Label ID="IngredientEightLabel" runat="server" Text='<%# Eval("IngredientEight") %>' />
<br />
<asp:Label ID="IngredientNineLabel" runat="server" Text='<%# Eval("IngredientNine") %>' />
<br />
<asp:Label ID="IngredientTenLabel" runat="server" Text='<%# Eval("IngredientTen") %>' />
<br />
Directions:<br />
<asp:Label ID="DirectionOneLabel" runat="server" Text='<%# Eval("DirectionOne") %>' />
<br />
<asp:Label ID="DirectionTwoLabel" runat="server" Text='<%# Eval("DirectionTwo") %>' />
<br />
<asp:Label ID="DirectionThreeLabel" runat="server" Text='<%# Eval("DirectionThree") %>' />
<br />
<asp:Label ID="DirectionFourLabel" runat="server" Text='<%# Eval("DirectionFour") %>' />
<br />
<br />
</ItemTemplate>
</asp:DataList>
</asp:Panel>
<asp:Button ID="btnPrintCurrent" runat="server" Text="Print Current Page" OnClick="PrintCurrentPage" />
</div>
<asp:HyperLink ID="HyperLink2" runat="server" NavigateUrl='<%# Bind("RecipeID", "PageLinkDetails.aspx?RecipeId={0}") %>'
Text='<%# Eval("Name") %>'>Rate This Recipe</asp:HyperLink>
</asp:Content>
using System;
using System.Data;
using System.Data.SqlClient;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.IO;
using System.Text;
using System.Web.SessionState;
namespace TestDataBase
{
public partial class PageLinkDetails : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
Response.Cache.SetCacheability(HttpCacheability.NoCache);
BindGrid();
}
private void BindGrid()
{
string strQuery = "select * " + "from CaribbeanDirections";
DataTable dt = new DataTable();
String strConnString = System.Configuration.ConfigurationManager
.ConnectionStrings["Caribbean"].ConnectionString;
SqlConnection con = new SqlConnection(strConnString);
SqlDataAdapter sda = new SqlDataAdapter();
SqlCommand cmd = new SqlCommand(strQuery);
cmd.CommandType = CommandType.Text;
cmd.Connection = con;
try
{
con.Open();
sda.SelectCommand = cmd;
sda.Fill(dt);
//*DataList1.DataSource = dt;
DataList1.DataBind();
}
catch (Exception ex)
{
throw ex;
}
finally
{
con.Close();
sda.Dispose();
con.Dispose();
}
}
public override void VerifyRenderingInServerForm(Control control)
{
/*Verifies that the control is rendered */
}
protected void OnPaging(object sender, PageEventArgs e)
{
DataList1.DataBind();
}
protected void PrintCurrentPage(object sender, EventArgs e)
{
DataList1.DataBind();
StringWriter sw = new StringWriter();
HtmlTextWriter hw = new HtmlTextWriter(sw);
DataList1.RenderControl(hw);
string gridHTML = sw.ToString().Replace("\"", "'")
.Replace(System.Environment.NewLine, "");
StringBuilder sb = new StringBuilder();
sb.Append("<script type = 'text/javascript'>");
sb.Append("window.onload = new function(){");
sb.Append("var printWin = window.open('', '', 'left=0");
sb.Append(",top=0,width=1000,height=600,status=0');");
sb.Append("printWin.document.write(\"");
sb.Append(gridHTML);
sb.Append("\");");
sb.Append("printWin.document.close();");
sb.Append("printWin.focus();");
sb.Append("printWin.print();");
sb.Append("printWin.close();};");
sb.Append("</script>");
ClientScript.RegisterStartupScript(this.GetType(), "GridPrint", sb.ToString());
DataList1.DataBind();
}
protected void btnPrint_Click(object sender, EventArgs e)
{
Session["ctrl"] = pnl1;
}
}
}