Hi,
When I press the button Upload I get the error "Value cannot be null". I've looked everywhere but unable to find the OnFileUploadCompleted and I don't know what to look for. Could you give me a hint on this ? After the files are selected which they all appear in the list, There's no errors and nothing seems to be wrong until I press UPLOAD.
Value cannot be null.
Parameter name: key
at System.ThrowHelper.ThrowArgumentNullException(ExceptionArgument argument)
at System.Collections.Generic.Dictionary`2.FindEntry(TKey key)
at System.Collections.Generic.Dictionary`2.ContainsKey(TKey key)
at Telerik.Windows.Controls.RadUpload.OnFileUploadCompleted(Object sender, EventArgs e)
Here's the parameters I did set for the RadUpload
When I press the button Upload I get the error "Value cannot be null". I've looked everywhere but unable to find the OnFileUploadCompleted and I don't know what to look for. Could you give me a hint on this ? After the files are selected which they all appear in the list, There's no errors and nothing seems to be wrong until I press UPLOAD.
Value cannot be null.
Parameter name: key
at System.ThrowHelper.ThrowArgumentNullException(ExceptionArgument argument)
at System.Collections.Generic.Dictionary`2.FindEntry(TKey key)
at System.Collections.Generic.Dictionary`2.ContainsKey(TKey key)
at Telerik.Windows.Controls.RadUpload.OnFileUploadCompleted(Object sender, EventArgs e)
Here's the parameters I did set for the RadUpload
<
telerik:RadUpload
Grid.Column
=
"1"
x:Name
=
"RadUpload1"
Margin
=
"0"
Filter
=
"Image Files (*.jpg;*.jpeg;*.png)| *.jpg;*.jpeg;*.png"
FilterIndex
=
"0"
MaxFileCount
=
"500"
AllowDrop
=
"true"
Width
=
"Auto"
IsAutomaticUpload
=
"false"
OverwriteExistingFiles
=
"True"
UploadServiceUrl
=
"../receiver.ashx"
IsAppendFilesEnabled
=
"True"
FileUploadStarting
=
"RadUpload1_FileUploadStarting"
FileUploaded
=
"RadUpload1_FileUploaded"
UploadStarted
=
"RadUpload1_UploadStarted"
MaxFileSize
=
"12000000"
MaxUploadSize
=
"900000000"
SelectionMode
=
"Multiple"
MinWidth
=
"0"
MinHeight
=
"0"
MaxHeight
=
"Infinity"
Style="{StaticResource
RadUploadStyle1}"
TargetFolder
=
"~/ClientBin/Photos"
BufferSize
=
"900000000"
/>