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Hi Every body
 
I am trying to pass a value form a GridView to a TextBox or a session.
Session["SEmpID"] = GridView1.SelectedRow.FindControl("SubjectID").ToString();
or
TXTTest.Text = GridView1.SelectedRow.FindControl("SubjectID").ToString();
But I always recive the error:
Object reference not set to an instance of an object.
 
I hope any one can solve it to me.
 
Thank you
Posted 18-Jan-13 5:12am
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Solution 1

GridView1.SelectedRow.FindControl("SubjectID") is null.
When you try to cast null to ToString(), you will get an error.
 
Try to find out why GridView1.SelectedRow.FindControl("SubjectID") is not returning anything.
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Comments
Espen Harlinn at 18-Jan-13 11:48am
   
Good point :-D
Abhinav S at 18-Jan-13 12:03pm
   
Thank you.
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Solution 2

Hi,
 
1) Is your given code in GridView1_SelectedIndexChanged() event.
 
2) Where you set GridView DataSource
if it is in page_load() event then it should be in
 
 if (!IsPostBack) { GridView1.DataSource = "xyzDataset" }
 

Please mark it as ans & rate if you find it helps you.
Thank You
Asp.Net/C#.Net Help[^]
Hemant Singh
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v2
Comments
Nasser Abu Farah at 18-Jan-13 10:50am
   
Hi
I added a button form the edit tiplatte in the grid view. and place the code in the button.

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