對于ASP.NET 2.0,FileUpload控件可以用來上傳檔案,首先得導入命名空間 System.IO; 利用FileUpload,指定上傳路徑,然後執行SaveAs,就可以輕松上傳,當然這隻能上傳小檔案,上傳檔案不能超過4M，這就是因為maxRequestLength的大小預設為4096，這就限制着每個請求的大小不得超過4096KB。這麼做的目的是為了保護應用程式不受惡意請求的危害。當請求超過maxRequestLength之後，ASP.NET處理程式将不會處理該請求。這裡和ASP.NET抛出一個異常是不同的，這就是為什麼如果使用者上傳檔案太大，看到的并非是ASP.NET應用程式中指定的錯誤頁面（或者預設的），因為ASP.NET還沒有對這個請求進行處理。
下面代碼是用FileUpload進行檔案上傳的執行個體,該執行個體中檔案删除有用到與資料庫的操作,還引用了主機闆頁,請根據實際情況進行修改!
頁面背景代碼:
using System;
using System.Data;
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;
public partial class Admin_Document_DocumentTemplateManage : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
//檔案上傳
protected void btnUpload_Click(object sender, EventArgs e)
{
FileUpload fu = (FileUpload)(this.fvDocumentTemplatee.FindControl("fuDocumentTemplate"));
TextBox pathText = (TextBox)(this.fvDocumentTemplatee.FindControl("DocumentPathTextBox"));
pathText.Text = Server.MapPath("..//..//Document//DocumentTemplate//" + fu.FileName); //将上傳路徑指派到,記得修改,哈哈!
DocumentPathTextBox
fu.SaveAs(pathText.Text);
Button btnCancel = (Button)(this.fvDocumentTemplatee.FindControl("btnDelDoc"));
btnCancel.Enabled = true;
}
protected void btnDelDoc_Click(object sender, EventArgs e)
{
TextBox pathText = (TextBox)(this.fvDocumentTemplatee.FindControl("DocumentPathTextBox"));
File.Delete(pathText.Text);
pathText.Text = "";
(sender as Button).Enabled = false;
}
protected void fvDocumentTemplatee_ItemInserted(object sender, FormViewInsertedEventArgs e)
{
}
protected void grdDocumentTemplateList_RowDeleted(object sender, GridViewDeletedEventArgs e)
{
}
protected void fvDocumentTemplatee_ItemInserting(object sender, FormViewInsertEventArgs e)
{
}
protected void grdDocumentTemplateList_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
e.Row.Cells[4].Attributes.Add("onclick", "javascript:return confirm('你确實要删除/"" + e.Row.Cells[1].Text + "/"嗎?')");
}
}
}
前台代碼:
<%@ Page Language="C#" MasterPageFile="~/Main.master" AutoEventWireup="true" CodeFile="DocumentTemplateManage.aspx.cs" Inherits="Admin_Document_DocumentTemplateManage" Title="公文模闆資料維護" %>
<asp:Content ID="Content1" ContentPlaceHolderID="MainContent" Runat="Server">
<div style="text-align: center; vertical-align: top;">
<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:WROA %>"
DeleteCommand="DELETE FROM [tDocumentTemplate] WHERE [DocumentTemplateID] = @original_DocumentTemplateID"
InsertCommand="INSERT INTO [tDocumentTemplate] ([DocumentName], [DocumentDescription], [DocumentPath]) VALUES (@DocumentName, @DocumentDescription, @DocumentPath)"
OldValuesParameterFormatString="original_{0}" SelectCommand="SELECT [DocumentTemplateID], [DocumentName], [DocumentDescription], [DocumentPath] FROM [tDocumentTemplate]"
UpdateCommand="UPDATE [tDocumentTemplate] SET [DocumentName] = @DocumentName, [DocumentDescription] = @DocumentDescription, [DocumentPath] = @DocumentPath WHERE [DocumentTemplateID] = @original_DocumentTemplateID">
<DeleteParameters>
<asp:Parameter Name="original_DocumentTemplateID" Type="Int64" />
</DeleteParameters>
<UpdateParameters>
<asp:Parameter Name="DocumentName" Type="String" />
<asp:Parameter Name="DocumentDescription" Type="String" />
<asp:Parameter Name="DocumentPath" Type="String" />
<asp:Parameter Name="original_DocumentTemplateID" Type="Int64" />
</UpdateParameters>
<InsertParameters>
<asp:Parameter Name="DocumentName" Type="String" />
<asp:Parameter Name="DocumentDescription" Type="String" />
<asp:Parameter Name="DocumentPath" Type="String" />
</InsertParameters>
</asp:SqlDataSource>
<table width="700" >
<tr align="left">
<td style="height: 128px">
新增文檔模闆</td>
</tr>
<tr align="left">
<td>
<asp:FormView ID="fvDocumentTemplatee" runat="server" DataKeyNames="DocumentTemplateID" DefaultMode="Insert" OnItemInserted="fvDocumentTemplatee_ItemInserted" Width="530px" OnItemInserting="fvDocumentTemplatee_ItemInserting" DataSourceID="SqlDataSource1" >
<EditItemTemplate>
DocumentTemplateID:
<asp:Label ID="DocumentTemplateIDLabel1" runat="server" Text='<%# Eval("DocumentTemplateID") %>'>
</asp:Label><br />
DocumentName:
<asp:TextBox ID="DocumentNameTextBox" MaxLength="50" runat="server" Text='<%# Bind("DocumentName") %>'>
</asp:TextBox><br />
DocumentDescription:
<asp:TextBox ID="DocumentDescriptionTextBox" MaxLength="250" runat="server" Text='<%# Bind("DocumentDescription") %>'>
</asp:TextBox><br />
DocumentPath:
<asp:TextBox ID="DocumentPathTextBox" MaxLength="250" runat="server" Text='<%# Bind("DocumentPath") %>'>
</asp:TextBox><br />
<asp:LinkButton ID="UpdateButton" runat="server" CausesValidation="True" CommandName="Update"
Text="更新">
</asp:LinkButton>
<asp:LinkButton ID="UpdateCancelButton" runat="server" CausesValidation="False" CommandName="Cancel"
Text="取消">
</asp:LinkButton>
</EditItemTemplate>
<InsertItemTemplate>
文檔名稱：<asp:TextBox ID="DocumentNameTextBox" MaxLength="50" runat="server" Text='<%# Bind("DocumentName") %>' Width="437px"></asp:TextBox><br />
<asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server" ControlToValidate="DocumentNameTextBox"
ErrorMessage="請輸入公文模闆名稱"></asp:RequiredFieldValidator><br />
上傳文檔：<asp:FileUpload ID="fuDocumentTemplate" runat="server" Width="397px" />
<asp:Button ID="btnUpload" runat="server" OnClick="btnUpload_Click" Text="上傳" /><br />
文檔描述：<asp:TextBox ID="DocumentDescriptionTextBox" MaxLength="250" runat="server" Text='<%# Bind("DocumentDescription") %>' Height="75px" TextMode="MultiLine" Width="442px"></asp:TextBox><br />
文檔路徑：<asp:TextBox ID="DocumentPathTextBox" runat="server" MaxLength="250" Text='<%# Bind("DocumentPath") %>' ReadOnly="True" Width="396px"></asp:TextBox>
<asp:Button ID="btnDelDoc" runat="server" Enabled="False" OnClick="btnDelDoc_Click"
Text="删除" /><br />
<asp:Label ID="lblMessage" runat="server"></asp:Label><br />
<asp:LinkButton ID="InsertButton" runat="server" CausesValidation="True" CommandName="Insert"
Text="插入"></asp:LinkButton>
<asp:LinkButton ID="InsertCancelButton" runat="server" CausesValidation="False" CommandName="Cancel"
Text="取消"></asp:LinkButton>
</InsertItemTemplate>
<ItemTemplate>
DocumentTemplateID:
<asp:Label ID="DocumentTemplateIDLabel" runat="server" Text='<%# Eval("DocumentTemplateID") %>'>
</asp:Label><br />
DocumentName:
<asp:Label ID="DocumentNameLabel" runat="server" Text='<%# Bind("DocumentName") %>'>
</asp:Label><br />
DocumentDescription:
<asp:Label ID="DocumentDescriptionLabel" runat="server" Text='<%# Bind("DocumentDescription") %>'>
</asp:Label><br />
DocumentPath:
<asp:Label ID="DocumentPathLabel" runat="server" Text='<%# Bind("DocumentPath") %>'>
</asp:Label><br />
<asp:LinkButton ID="NewButton" runat="server" CausesValidation="False" CommandName="New"
Text="建立">
</asp:LinkButton>
</ItemTemplate>
</asp:FormView>
<br />
文檔模闆清單</td>
</tr>
<tr align="left">
<td style=" word-break : break-all; height: 149px;">
<asp:GridView ID="grdDocumentTemplateList" runat="server" AutoGenerateColumns="False" DataKeyNames="DocumentTemplateID" OnRowDeleted="grdDocumentTemplateList_RowDeleted" Width="530px" DataSourceID="SqlDataSource1" OnRowDataBound="grdDocumentTemplateList_RowDataBound">
<Columns>
<asp:BoundField DataField="DocumentTemplateID" HeaderText="DocumentTemplateID" InsertVisible="False"
ReadOnly="True" SortExpression="DocumentTemplateID" Visible="False" />
<asp:BoundField DataField="DocumentName" HeaderText="文檔名稱" SortExpression="DocumentName" >
<ItemStyle Width="100px" />
</asp:BoundField>
<asp:BoundField DataField="DocumentDescription" HeaderText="文檔描述"
SortExpression="DocumentDescription" >
<ItemStyle Width="100px" />
</asp:BoundField>
<asp:BoundField DataField="DocumentPath" HeaderText="文檔路徑" SortExpression="DocumentPath" >
<ItemStyle Wrap="True"/>
</asp:BoundField>
<asp:CommandField ShowDeleteButton="True" >
<ItemStyle Width="50px" />
</asp:CommandField>
</Columns>
</asp:GridView>
</td>
</tr>
<tr align="left">
<td>
</td>
</tr>
<tr align="left">
<td style="height: 25px">
</td>
</tr>
</table>
</div>
</asp:Content>
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