上传图片时，该参数在vb.net中无效 [英] parameter is not valid in vb.net while upload image

问题描述

大家好，

我正在使用asp.net，vb.net和vs2008.

我想使用文件上传控件浏览图像文件(.jpg).
我收到此类错误参数无效"

我的代码在下面

将selected_image昏暗为System.Drawing.Bitmap

Hi All,

I am using asp.net,vb.net and vs2008.

I want to browse image file (.jpg) using file upload control.
I am getting this type of error "Parameter is not valid"

my code in below

Dim selected_image As System.Drawing.Bitmap

If FileUpload1.PostedFile.FileName <> "" Then


                        in_file = FileUpload1.PostedFile.FileName 
                        selected_image = New System.Drawing.Bitmap(in_file)
                        property_ids = selected_image.PropertyIdList

                    End If

我在这行代码中遇到错误
selected_image =新的System.Drawing.Bitmap(in_file)

请帮助

问候
mukesh

i am getting error in this line of code
selected_image = New System.Drawing.Bitmap(in_file)

plz help

Regards
mukesh

推荐答案

也许您应该添加另一行代码:

Perhaps you should add another line of code:

If FileUpload1.PostedFile.FileName <> "" Then
    in_file = FileUpload1.PostedFile.FileName ' **** ADD THIS
    selected_image = New System.Drawing.Bitmap(in_file)

这篇关于上传图片时，该参数在vb.net中无效的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！