我的编码有问题，无法在新标签页或新窗口中打开我的pdf文件。然后，我在过滤gridview时也遇到了问题。这是因为当筛选gridview时，下载按钮无法工作，无法下载pdf。这是我的aspx编码
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="ViewDocument.aspx.cs" Title="Untitled Page" %>
<asp:Content ID="Content1" ContentPlaceHolderID="head" runat="server">
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" runat="server">
<center>
<br />
<br />
<asp:Label ID="Label1" runat="server" CssClass="title" Text="DOCUMENT LIST"></asp:Label>
<br />
<br />
<br />
<table>
<tr>
<td style="text-align: center; padding-left: 25px; padding-right: 25px">
</td>
<td style="text-align: center">
<asp:Button ID="Button1" runat="server" CssClass="button" Text="Contract(Test)" OnClick="Button1_Click" />
</td>
<td style="text-align: center; padding-left: 25px; padding-right: 25px">
</td>
</tr>
</table>
<br />
<br />
</center>
<asp:MultiView ID="MultiView1" runat="server">
<asp:View ID="DocView" runat="server">
<center>
<br />
<br />
<table>
<tr>
<td style="text-align: center; padding-left: 10px; padding-right: 15px">
<asp:Label ID="Label2" runat="server" Text="Search By :"></asp:Label>
</td>
<%-- <td style="text-align: center; padding-left: 5px; padding-right: 5px">
<asp:DropDownList ID="DropDownList1" runat="server" CssClass="dropDownMenu">
<asp:ListItem Value="Document Name"></asp:ListItem>
<asp:ListItem Value="Date"></asp:ListItem>
</asp:DropDownList>
</td>--%>
<td style="padding-left: 5px; padding-right: 5px">
<asp:TextBox ID="DocSearch" runat="server" CssClass="text-input" Width="200px" MaxLength="100"
Font-Names="verdana"></asp:TextBox>
</td>
<td>
<asp:Button ID="Button2" runat="server" CssClass="button" Text="Search" OnCommand="Button2_Command" />
</td>
</tr>
</table>
<br />
<br />
<br />
<asp:GridView ID="GridView1" runat="server" BackColor="White" BorderStyle="Solid"
BorderColor="#ccc" BorderWidth="2px" GridLines="Horizontal" Width="650px" AutoGenerateColumns="false"
CellPadding="3" OnRowCommand="ActionCommand" AllowSorting="true">
<RowStyle BackColor="#E7E7FF" ForeColor="#4A3C8C" />
<Columns>
<asp:BoundField DataField="folderName">
<ItemStyle CssClass="leftAligment" />
</asp:BoundField>
<asp:BoundField DataField="fileName" HeaderText="DOCUMENT NAME">
<ItemStyle CssClass="leftAligment" />
</asp:BoundField>
<asp:BoundField DataField="Date" HeaderText="DATE / TIME">
<ItemStyle CssClass="centerAlign" />
</asp:BoundField>
<asp:ButtonField CommandName="Open" Text="Open" ButtonType="Link" />
<asp:ButtonField CommandName="Download" Text="Download" />
</Columns>
<FooterStyle BackColor="#B5C7DE" ForeColor="#4A3C8C" />
<PagerStyle BackColor="#E7E7FF" ForeColor="#4A3C8C" HorizontalAlign="Right" />
<SelectedRowStyle BackColor="#738A9C" Font-Bold="True" ForeColor="#F7F7F7" />
<HeaderStyle BackColor="#4A3C8C" Font-Bold="True" ForeColor="#F7F7F7" />
<AlternatingRowStyle BackColor="#F7F7F7" />
</asp:GridView>
</center>
<br />
<br />
<br />
</asp:View>
</asp:MultiView>
我的aspx.cs编码
using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Linq;
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.Xml.Linq;
using System.IO;
using System.Threading;
using System.Net;
using System.Xml;
namespace Hibah_Total_v1._2.Secure
{
public partial class ViewDocument : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
MultiView1.Visible = false;
}
}
protected void Button1_Click(object sender, EventArgs e)
{
MultiView1.Visible = true;
MultiView1.SetActiveView(DocView);
string folderName = ConfigurationManager.AppSettings["folderPDF"].ToString();
string path = Server.MapPath("~") + "/Secure/";
string fullPath = path + folderName;
string[] filePaths = Directory.GetFiles(fullPath, "*.pdf");
DataTable table = GetTable(filePaths);
GridView1.Columns[0].Visible = true;
GridView1.DataSource = table;
GridView1.DataBind();
GridView1.Columns[0].Visible = false;
}
public DataTable GetTable(string[] filePaths)
{
DataTable table = new DataTable();
table.Columns.Add("folderName", typeof(string));
table.Columns.Add("fileName", typeof(string));
table.Columns.Add("Date", typeof(string));
DataRow row;
{
for (int i = 0; i < filePaths.Length; i++)
{
row = table.NewRow();
row["folderName"] = filePaths[i];
FileInfo Myfile = new FileInfo(filePaths[i]);
row["fileName"] = Myfile.Name.ToString();
row["Date"] = Myfile.CreationTime.ToString();
table.Rows.Add(row);
}
}
Session["Table"] = table;
this.GridView1.DataSource = ((DataTable)Session["Table"]).DefaultView;
this.GridView1.DataBind();
return table;
}
public void ActionCommand(object sender, GridViewCommandEventArgs e)
{
string commandName = e.CommandName.ToString().Trim();
GridViewRow row = GridView1.Rows[Convert.ToInt32(e.CommandArgument)];
string folderName = ConfigurationManager.AppSettings["folderPDF"].ToString();
string path = Server.MapPath("~") + "/Secure/";
string fullPath = path + folderName;
string[] filePaths = Directory.GetFiles(fullPath, "*.pdf");
switch (commandName)
{
case "Open":
ScriptManager.RegisterStartupScript(Page, typeof(Page), "OpenWindow", "window.open('OpenForm.aspx?path=" + row.Cells[0].Text + "');", true);
break;
case "Download":
FileStream fs = new FileStream(row.Cells[0].Text, FileMode.Open, FileAccess.Read);
byte[] ar = new byte[(int)fs.Length];
fs.Read(ar, 0, (int)fs.Length);
fs.Close();
Response.AddHeader("content-disposition", "attachment;fileName=" + HttpUtility.UrlEncode(row.Cells[1].Text, System.Text.Encoding.UTF8));
Response.ContentType = "application/octectstream";
Response.BinaryWrite(ar);
Response.End();
break;
default: break;
}
}
protected void Button2_Command(object sender, EventArgs e)
{
string folderName = ConfigurationManager.AppSettings["folderPDF"].ToString();
string path = Server.MapPath("~") + "/Secure/";
string fullPath = path + folderName;
string[] filePaths = Directory.GetFiles(fullPath, "*.pdf");
if (DocSearch.Text.ToString().Trim() != "")
{
DataTable dt = (DataTable)Session["Table"];
var query = from t in dt.AsEnumerable() where t.Field<string>("folderName").StartsWith(DocSearch.Text.ToString().Trim()) || t.Field<string>("folderName").Contains(DocSearch.Text.ToString().Trim()) select t;
DataTable dtable = new DataTable();
dtable = query.CopyToDataTable();
this.GridView1.DataSource = dtable;
this.GridView1.DataBind();
}
else
{
this.GridView1.DataSource = ((DataTable)Session["table"]).DefaultView;
this.GridView1.DataBind();
}
}
}
}
任何人都可以帮我搞清楚吗???
答案 0 :(得分：1)
private static void CreateCommand(string queryString,
string connectionString)
{
using (SqlConnection connection = new SqlConnection(
connectionString))
{
SqlCommand command = new SqlCommand(queryString, connection);
command.Connection.Open();
command.ExecuteNonQuery();
}
}