object reference not set to an instance of an object.

Question

Hi Guys Please Help Me . see to this error display this message when i Insert new record using Sqldatasource in gridview

Midhun Tp · Answer

Hi, You can't just call Findcontrol method to get textbox value from gridview. You have to specify the row index for which you need the textbox value, like below - ((TextBox)grdviewnew .Rows[0] .FindControl("TxtFleetNo")).Text;

Abdalla Elawad · Answer

Thanks to all Programmer This is solution : I forget the Footer Raw of Gridview before Find Control like below code SqlDataSource1.InsertParameters["Fleet_No"].DefaultValue = ((TextBox)GridView1. FooterRow .FindControl("TxtFleetNo")).Text; SqlDataSource1.InsertParameters["Registration_No"].DefaultValue = ((TextBox)GridView1. FooterRow .FindControl("TxtRegNo")).Text; SqlDataSource1.InsertParameters["Reg_Alpha"].DefaultValue = ((TextBox)GridView1. FooterRow .FindControl("TxtRegAlpha")).Text;

Ramesh Palanivel · Answer

Hi Abdalla, Your TxtFleetNo values is empty .. Behind the reason you are getting error.. Check the field value whether it has value or not..

Avinash Aher · Answer

Use FooterRow.findControl('ControlName').Text

Abdalla Elawad · Answer

Check any thing is good , but display same error

Ranjeet Patra · Answer

Hi Abdalla, Check once the "TxtFleetNo" control's spelling and its existance inside Gridview.

Abdalla Elawad · Answer

i try your code same problem .

Ramesh Palanivel · Answer

Hi Abdalla, Try the below code and create the break point in that and check whether the string is null or not if ( string .IsNullOrEmpty(value)) // set break point in this line, { //set some flag here } else { // set some flag here }

Abdalla Elawad · Answer

Hi Ramesh Sure not empty , please see below

object reference not set to an instance of an object.

Answers (9)