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如何使用C#开发一个类似于live skydrive中的文件上传器控件

发布于 2024-08-03 10:10:52 字数 49 浏览 6 评论 0原文

我喜欢拖拽skydrive 文件上传控件的 drop 功能。我该如何开发类似的控件？

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秋日私语 2024-08-10 10:10:52

检查我的源代码是否有用

using System;
using System.Data.ProviderBase;
using System.Text;
using System.Xml.Schema;
using System.Xml.XPath;
using System.Xml.Xsl;
using System.Globalization;
using System.Diagnostics;
using System.ComponentModel.Design;
using System.Data.Common;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Collections.Specialized;
using System.Collections;
using System.Data;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Configuration;
using System.Web.Security;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;

public partial class _Default : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {

    }

    protected void upload_Click(object sender, EventArgs e)
    {
if (fileupload.HasFile)
try {

    fileupload.SaveAs("C:\\Uploads\\" + fileupload.FileName);
lbl.Text = "File name: " +
fileupload.PostedFile.FileName + "<br>" +
fileupload.PostedFile.ContentLength + " kb<br>" +
"Content type: " +
fileupload.PostedFile.ContentType;  
}
catch (Exception ex) {
lbl.Text = "ERROR: " + ex.Message.ToString(); 
}
else
{
lbl.Text = "You have not specified a file.";
} 
    }
}

HTML：

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="fileupload.aspx.cs" Inherits="_Default" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
</head>
<body>
<form id="myForm" runat="server">

<asp:FileUpload ID="fileupload" runat="server" />

<asp:Button ID="upload" Text="Upload" runat="server" onclick="upload_Click" />

<asp:Label ID="lbl" runat="server"></asp:Label>
</form>
</body>
</html>

check my source code if it's useful

using System;
using System.Data.ProviderBase;
using System.Text;
using System.Xml.Schema;
using System.Xml.XPath;
using System.Xml.Xsl;
using System.Globalization;
using System.Diagnostics;
using System.ComponentModel.Design;
using System.Data.Common;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Collections.Specialized;
using System.Collections;
using System.Data;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Configuration;
using System.Web.Security;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;

public partial class _Default : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {

    }

    protected void upload_Click(object sender, EventArgs e)
    {
if (fileupload.HasFile)
try {

    fileupload.SaveAs("C:\\Uploads\\" + fileupload.FileName);
lbl.Text = "File name: " +
fileupload.PostedFile.FileName + "<br>" +
fileupload.PostedFile.ContentLength + " kb<br>" +
"Content type: " +
fileupload.PostedFile.ContentType;  
}
catch (Exception ex) {
lbl.Text = "ERROR: " + ex.Message.ToString(); 
}
else
{
lbl.Text = "You have not specified a file.";
} 
    }
}

HTML:

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="fileupload.aspx.cs" Inherits="_Default" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
</head>
<body>
<form id="myForm" runat="server">

<asp:FileUpload ID="fileupload" runat="server" />

<asp:Button ID="upload" Text="Upload" runat="server" onclick="upload_Click" />

<asp:Label ID="lbl" runat="server"></asp:Label>
</form>
</body>
</html>

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