C#文件上传

最新推荐文章于 2024-09-18 10:09:50 发布

原创最新推荐文章于 2024-09-18 10:09:50 发布 · 975 阅读

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文章标签：

#c# #server #button #file #upload #input

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此博客展示了用C#实现文件上传的代码。在服务器端，通过Button1_Click方法处理上传逻辑，判断文件名输入和文件是否存在，尝试保存文件并给出相应提示；在客户端，提供文件选择、文件名输入和上传按钮等元素。

＜script language="c#" runat="server"＞

void Button1_Click(object Source, EventArgs e) {

if (Text1.Value == "") {
Span1.InnerHtml = "Error: you must enter a file name";
return;
}

if (File1.PostedFile != null) {

try {
File1.PostedFile.SaveAs("c://temp//"+Text1.Value);
Span1.InnerHtml = "File uploaded successfully to c://temp//"+Text1.Value+" on the web server";
}

catch (Exception exc) {
Span1.InnerHtml = "Error saving file c://temp//"+Text1.Value+""+ exc.ToString();
}

}

void Page_Load(object sender, System.EventArgs e){
Span1.InnerHtml="";
}

＜/script＞
＜html＞
＜body＞

HtmlInputFile Sample

＜form enctype="multipart/form-data" runat="server"＞

Select File to Upload: ＜input id="File1" type=file runat="server"＞

Save as filename : ＜input id="Text1" type="text" runat="server"＞

＜span id=Span1 style="font: 8pt verdana;" runat="server" /＞

＜input type=button id="Button1" value="Upload" OnServerClick="Button1_Click" runat="server"＞

＜/form＞
＜/body＞
＜/html＞