Web Forms :: Object Reference Not Set?

Mar 2, 2012

i have following code in page load

conn = new SqlConnection(); 
conn.ConnectionString = Session["Constr"].ToString(); 
if (Session["Constr"] == null)  { 
Response.Redirect("index.ASPX", false); 
}

If i navigate from index page I get the pages properly but if I directly type in the test.aspx in the url instead of navigation from index i get above error inspite of checking for is null...

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[Code]....

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[code]....

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Forms Data Controls :: Object Reference Not Set To An Instance Of An Object Repeater Control

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erver Error in '/WebSite4' Application.

Object reference not set to an instance of an object.
Description:
An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.

Source Error:

[Code]....

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Description:

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[Code]....

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Aug 27, 2010

private void FillDetails(string pId, out string Name, out string Address)

[code]....

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Web Forms :: Error When Adding To Listbox / Object Reference Not Set To An Instance Of An Object

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I have just recently converted my VB code to C# and now having this error when I try to add an item to my listbox, and the value is coming from the item page. I get the error at this segement:

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Here's what I have so far:

[code]...

[Code]....

[Code]....

My guess is that the source of the problem could be in the foreach loop from my cart class, shouldn't I be using that for arrays only? If I need to post any markup code or any other class, let me know.

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I am using C# and VS 2008 attached with access database, where Date1 is the PKey in Text defined.

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I am trying to use

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Jul 10, 2010

I would like to enable/disable the field BagNo in my gridview, depending on the value of another field in the gridview called ScriptNo, when I click the edit button I get this message "Object reference not set to an instance of an object".

here is the code

Protected Sub GridView1_RowEditing(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewEditEventArgs) Handles GridView1.RowEditing
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Web Forms :: Object Reference Not Set To Instance Of Object Error Happen When Use 2 Linkbutton

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<asp:DataList ID="DLclass" runat="server">
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[Code] ....

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protected void c(object sender, EventArgs e)
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[Code] ....

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Server Error in '/' Application.

Object reference not set to an instance of an object.

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.

Source Error:

Line 537: {
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Line 540: }
Line 541:

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Web Forms :: Reading Cookies - Object Reference Not Set To Instance Of Object Error

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I am using following code for remember me check box

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[Code] ....

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'Object reference not set to an instance of an object'

error occur..

How to check the cookies or exist or not in local machine?

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Jul 12, 2013

In manager.aspx page I have gridview that bind product information from database in this gridview I define linkbutton EDIT that when users click on it they go to Edit.aspx page and in this page users can see their product information and Edit them

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[Code] ....

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Server Error in '/behtop website' Application.

Object reference not set to an instance of an object.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.

Source Error: 

Line 79:
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[Code]....

[Code]....

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This might have been asked before but I did a quick search and found nothing.

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[Code]....

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