Object reference not set to an instance of an object

Hi,

I have button on a page, which when clicks gives this error message:

Object reference not set to an instance of an object

It is meant to response.redirect to a new page:

protected void Button2_Click(object sender, EventArgs e)
{
Int32 ProductId = Convert.ToInt32(Request.QueryString["proID"]);
bool result = Executeupdateclickedin(ProductId);
result = Executedeleteshipping(ProductId);
result = Executemassmail2(ProductId);
result = Executeupdatenumberclickedin(ProductId);

Response.Redirect("~/Buyers/defaultedbuyer.aspx?proID=productID");

}

Thanks if someone can help!

Jon

What could be causing this?

Thanks for any help,

Jon

Hi there

To me, it sounds like it doesn't have the value that it is expecting.

Have you debugged and checked that your variables contain values?

Are your queries and methods returning the correct values?

Did you debug it?

Did you see if productid is not coming to null

Hi

I have debugged it - it doesnt show anything up. productid isn't coming null.

Here is the stack trace -

[NullReferenceException: Object reference not set to an instance of an object.]
 Sellers_managelisting.Executeupdateclickedin(Int32 ProductId) +143
 Sellers_managelisting.Button2_Click(Object sender, EventArgs e) +114
 System.Web.UI.WebControls.Button.OnClick(EventArgs e) +75
 System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument) +97
 System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +7
 System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +11
 System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +33
 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +4886

I bolded a line - does that mean the problem is with the updateclickedin section?

Thanks,

Jon

sure the problem looks in that section itself...

Got it!