How to fix Error executing child request?

Question

I am building an asp.net app and I keep getting this error while trying to transfer pages:

Error executing child request for Edit_PropertyData.aspx

I have no clue what's causing it or how to fix it, any help would be greatly appreciated!

Here is the Page_Load event of Edit_PropertyData.aspx

Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

    cmdChangeMaterial.Attributes.Add("onclick", "CheckSaveStatus();")
    cmdEditMaterial.Attributes.Add("onclick", "CheckSaveStatus();")

    If Session("Mode") Is "Edit" Then
        cmdEditMaterial.Enabled = True
        cmdSaveData.Enabled = True
    Else
        cmdEditMaterial.Enabled = False
        cmdSaveData.Enabled = False
    End If

    pnlMain.Visible = True
    pnlMain.Height = Unit.Pixel(650)

End Sub

`Server.Transfer` is very limited. Why do you need it? Wouldn't e.g. `HttpContext.Current.RewritePath` work better? Or perhaps you should use an even better approach? — Luaan, Apr 11 '14 at 12:48
@Luaan hmmm, I'll try `HttpContext.Current.RewritePath` I've never used that before — bbesase, Apr 11 '14 at 12:50
More importantly, why are you doing `Server.Transfer` in the first place? What are you trying to do? — Luaan, Apr 11 '14 at 12:51

score 2 · Accepted Answer · answered Apr 11 '14 at 12:52

2

Server.Transfer doesn't allow you to do a lot of things. You're probably trying to use it to pass query string parameters or some such. But you don't need that - the URL doesn't change in the target of the transfer, so you've still got the original query string. This can be both a good and a bad thing, depending on how you use it :)

You probably want to use a different transfer method instead - if you're inside a HttpModule, have a look at HttpContext.Current.RewritePath.

answered Apr 11 '14 at 12:52

Luaan

62,244
7
97
116

I tried the `HttpContext.Current.RewritePath` and another error came up. I'm just trying to make it so when the user clicks a button a different web page comes up – bbesase Apr 11 '14 at 12:59
@bbesase That's what `Response.Redirect` is for :) Or if you need the action to go to a different page, use `PostBackUrl` or change the form action. – Luaan Apr 11 '14 at 13:01

score 0 · Answer 2 · edited May 23 '17 at 11:57

What have you tried so far? A quick search gives a number of similar error messages with proposed and accepted solutions.

Server.Transfer throws Error executing child request. How to resolve?

http://forums.asp.net/t/1489436.aspx?Server+Transfer+Error+executing+child+request

http://support.microsoft.com/kb/320439

You don't mention what you're transferring from, but I suspect Response.Redirect or HttpContext.Current.RewritePath will be a better alternative for you.

How to fix Error executing child request?

2 Answers2