Passing a GridView Value to a Session

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Hi Every body

I am trying to pass a value form a GridView to a TextBox or a session.

C#

Session["SEmpID"] = GridView1.SelectedRow.FindControl("SubjectID").ToString();

or

C#

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 4:12am

Nasser Abu Farah

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Abhinav S · Answer 1 · 2013-01-18T04:16:00

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.

Posted 18-Jan-13 4:16am

Abhinav S

Comments

Espen Harlinn 18-Jan-13 11:48am

Good point :-D

Abhinav S 18-Jan-13 12:03pm

Thank you.

Hemant Singh Rautela · Answer 2 · 2013-01-18T04:37:00

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

C#

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

Posted 18-Jan-13 4:37am

Hemant Singh Rautela

Updated 18-Jan-13 4:39am

v2

Comments

Nasser Abu Farah 18-Jan-13 10:50am

HiI added a button form the edit tiplatte in the grid view. and place the code in the button.