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在我的.aspx,我如何可以采取图片上传值
<div id="pictureBox">
<img width="150" height="150" runat="server" id="imageField" />
</div>
<br />
<input id="Upload" style="width: 200px; font-family: Myanmar3;" type="file" name="Upload"
runat="server" accept="image/*" >
<br />
<asp:Button ID="ImageButton1" runat="server" OnClick="upload_Click" CssClass="styleButton"
Text="Upload" />
在我的.cs,
protected void upload_Click(object sender, EventArgs e)
{
if (Upload.Value !="")
{
System.IO.Stream fs = Upload.PostedFile.InputStream;
img_uploadStream = Upload.PostedFile.InputStream;
System.IO.BinaryReader br = new System.IO.BinaryReader(fs);
Byte[] bytes = CreateThumbnail(br.ReadBytes((Int32)fs.Length),150);
string base64String = Convert.ToBase64String(bytes, 0, bytes.Length);
imageField.Src = String.Format("data:{0};base64,{1}", "image/jpeg", base64String);
}
}
的形象已上传和“ImageField的”成功展示,但值字段“upload_Click”事件后,“上传”输入的内容为空。 我想回这个值来做另一个过程!
非常感谢! :) – zey 2013-03-20 07:25:54
我可以使用asp.net视图状态吗? – zey 2013-03-23 10:44:15
是的,你可以,但图像将从客户端到服务器的每个请求...不是非常高性能.... – 2013-03-23 21:12:44