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Solved
ASP.net pdf file opening in debug mode but not on web
Posted on 2016-11-05
Hi
I use the following VB.net code in my ASP.net web app to view a pdf file. It works in debug mode but not in the deployed site online
Protected Sub btnView_Click(sender As Object, e As EventArgs) Handles btnView.Click
Try
Dim oSelectedFile As String
If Me.ListBox1.SelectedItem.T
oSelectedFile = Me.ListBox1.SelectedItem.T
Else
Exit Sub
End If
Response.Clear()
'Dim filePath As String = "~/Uploads/GREAT.pdf"
Dim filePath As String = "~/Uploads/" & oSelectedFile
Response.ContentType = "application/pdf"
Response.WriteFile(filePat
Catch ex As Exception
'Response.Write(ex.Message
Me.lblErrorDeleting.Text = ex.Message & " hr556"
End Try
End Sub
I use the following VB.net code in my ASP.net web app to view a pdf file. It works in debug mode but not in the deployed site online
Protected Sub btnView_Click(sender As Object, e As EventArgs) Handles btnView.Click
Try
Dim oSelectedFile As String
If Me.ListBox1.SelectedItem.T
oSelectedFile = Me.ListBox1.SelectedItem.T
Else
Exit Sub
End If
Response.Clear()
'Dim filePath As String = "~/Uploads/GREAT.pdf"
Dim filePath As String = "~/Uploads/" & oSelectedFile
Response.ContentType = "application/pdf"
Response.WriteFile(filePat
Catch ex As Exception
'Response.Write(ex.Message
Me.lblErrorDeleting.Text = ex.Message & " hr556"
End Try
End Sub
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13 Comments
Active today
>>It works in debug mode
and in release mode it does what ? (Before jumping to conclusions that the version you use on the web site is working but the problem is with the web site you should test it first.)
and in release mode it does what ? (Before jumping to conclusions that the version you use on the web site is working but the problem is with the web site you should test it first.)
Active today
To repeat myself (because debug and release builds of code are not the same, and because you distribute a release build not a debug build):
and in release mode it does what ?
and in release mode it does what ?
Active 5 days ago
This is ASP.net of course so by release mode if you mean deployed to the web then this mode doesn't work. Nothing happens
Active today
Please confirm you have the web config set to use the release mode (debug=false) otherwise you have a set of code that works and a different set of code running in a browser somewhere else which fails. I'm just trying to rule out one possible source of the error.
Active 5 days ago
Here's the markup in web config. Should debug=false here?
<system.web>
<httpHandlers>
<add path="ChartImg.axd" verb="GET,HEAD,POST" type="System.Web.UI.DataVi
validate="false" />
</httpHandlers>
<authentication mode="None"/>
<compilation debug="true" strict="false" explicit="true" targetFramework="4.5.2">
<assemblies>
<add assembly="System.Web.DataV
</assemblies>
<system.web>
<httpHandlers>
<add path="ChartImg.axd" verb="GET,HEAD,POST" type="System.Web.UI.DataVi
validate="false" />
</httpHandlers>
<authentication mode="None"/>
<compilation debug="true" strict="false" explicit="true" targetFramework="4.5.2">
<assemblies>
<add assembly="System.Web.DataV
</assemblies>
Active today
Set the debug to false. (It should result in faster code because all the debugging is removed at compile time).
In reality I'm expecting it to still fail BUT it might be the problem.
ps.
http://aspalliance.com/1341_The_Infamous_DebugTrue_Attribute_in_ASPNET
In reality I'm expecting it to still fail BUT it might be the problem.
ps.
http://aspalliance.com/1341_The_Infamous_DebugTrue_Attribute_in_ASPNET
Active today
OK, that clears one potential problem out of the way.
Am I correct that you don't see any error message in the label?
Does this show what you expect in the (error) label in terms of the path, or nothing at all (which implies the click event isn't getting processed).
Protected Sub btnView_Click(sender As Object, e As EventArgs) Handles btnView.Click
Try
Dim oSelectedFile As String
If Me.ListBox1.SelectedItem.T
oSelectedFile = Me.ListBox1.SelectedItem.T
Else
Exit Sub
End If
Response.Clear()
'Dim filePath As String = "~/Uploads/GREAT.pdf"
Dim filePath As String = "~/Uploads/" & oSelectedFile
Me.lblErrorDeleting.Text = filePath
Response.ContentType = "application/pdf"
Response.WriteFile(filePat
Catch ex As Exception
'Response.Write(ex.Message
Me.lblErrorDeleting.Text = ex.Message & " hr556"
End Try
End Sub
Am I correct that you don't see any error message in the label?
Does this show what you expect in the (error) label in terms of the path, or nothing at all (which implies the click event isn't getting processed).
Protected Sub btnView_Click(sender As Object, e As EventArgs) Handles btnView.Click
Try
Dim oSelectedFile As String
If Me.ListBox1.SelectedItem.T
oSelectedFile = Me.ListBox1.SelectedItem.T
Else
Exit Sub
End If
Response.Clear()
'Dim filePath As String = "~/Uploads/GREAT.pdf"
Dim filePath As String = "~/Uploads/" & oSelectedFile
Me.lblErrorDeleting.Text = filePath
Response.ContentType = "application/pdf"
Response.WriteFile(filePat
Catch ex As Exception
'Response.Write(ex.Message
Me.lblErrorDeleting.Text = ex.Message & " hr556"
End Try
End Sub
Active today
So the button click event isn't being called in that case. Do other button click events work?
Active today
Or paranoia - just in case
Protected Sub btnView_Click(sender As Object, e As EventArgs) Handles btnView.Click
Try
Dim oSelectedFile As String
If Me.ListBox1.SelectedItem.T
oSelectedFile = Me.ListBox1.SelectedItem.T
Else
Me.lblErrorDeleting.Text = "Nothing selected"
Exit Sub
Protected Sub btnView_Click(sender As Object, e As EventArgs) Handles btnView.Click
Try
Dim oSelectedFile As String
If Me.ListBox1.SelectedItem.T
oSelectedFile = Me.ListBox1.SelectedItem.T
Else
Me.lblErrorDeleting.Text = "Nothing selected"
Exit Sub
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