怎么得到上传问件的大小（如33K）和长宽 用 uploadFile.PostedFile

Question

<input id="uploadFile" type="file" name="uploadFile" runat="server">上传文件

Answer 1

//从文件取得图片对象
System.Drawing.Image image = System.Drawing.Image.FromFile(sourcepath);
wt = image.Width;
ht = image.Height;
image.Dispose();

Answer 2

判断大小：myFile.PostedFile.ContentLength
myFile为控件的ID

Answer 3

<form id="Form1" method="post" runat="server">
<INPUT id="upload" type="file" runat="server">
<asp:Button id="Button1" runat="server" Text="Button"></asp:Button></FONT>
</form>Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        Response.Write((upload.PostedFile.ContentLength / 1024) & "KB" & "<br>")
        Dim image As System.Drawing.Image = System.Drawing.Image.FromFile(upload.PostedFile.FileName)
        Dim w As Integer = image.Width
        Dim h As Integer = image.Height
        Response.Write(w & "&nbsp;" & h)
    End Sub

Answer 4

我开始以为ContentLength 还是文件名得长度呢
晕死
谢谢