I got Error Line in code Update Command

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SQL-server-2000

SQL-Server-2005

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Dear All Experts

C#

string query = "update Questionnaire_UserAnswers set Comments='" + (TextBox)grdView.Rows[0].Cells[e.index].Controls[0] + "', Marks=" + (TextBox)grdView.Rows[4].Cells[e.index].Controls[0] + " where Question_ID=" + (TextBox)grdView.Rows[0].Cells[e.index].Controls[0] + "UserName='" + Request.QueryString["UserName"] + "'";

Error near In this [e.index]

correct the update command

Unable to cast object of type 'System.Web.UI.LiteralControl' to type 'System.Web.UI.WebControls.TextBox'.

thanks for valuable replay

Posted 9-Nov-11 19:30pm

2011999

Updated 9-Nov-11 19:31pm

Prerak Patel

v2

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Prerak Patel · Answer 1 · 2011-11-09T19:33:00

Solution 1

As the error says Controls[0] is not TextBox. You can debug and look how many controls does the cell have, or even find the control by id/name.

Posted 9-Nov-11 19:33pm

Prerak Patel

Comments

2011999 10-Nov-11 2:05am

Index was out of range. Must be non-negative and less than the size of the collection.
Parameter name: index

2011999 10-Nov-11 2:05am

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