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

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con.Open();
int ID = Convert.ToInt32(GVDetails.DataKeys[e.RowIndex].Values["ID"]);

TextBox txtName = GVDetails.Rows[e.RowIndex].FindControl("txtName") as TextBox;
TextBox txtAddress = GVDetails.Rows[e.RowIndex].FindControl("tctAddress") as TextBox;
SqlCommand cmd = new SqlCommand("update MyGrid set Name='" + txtName + "',Address='" + txtAddress + "' where ID=" + ID, con);
cmd.ExecuteNonQuery();
con.Close();
GVDetails.EditIndex = -1;
GridBind();
when i click on delete button it gvs error

SQL

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

Posted 11-Jun-13 16:47pm

mohdniyaz169

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Sergey Alexandrovich Kryukov 11-Jun-13 22:50pm

In what line?
—SA

mohdniyaz169 11-Jun-13 23:01pm

in first line
int ID = Convert.ToInt32(GVDetails.DataKeys[e.RowIndex].Values["ID"]);

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Sergey Alexandrovich Kryukov · Answer 1 · 2013-06-11T16:58:00

Solution 1

It's either GVDetails.DataKeys or GVDetails.Rows, or both, have number of element less then e.RowIndex − 1, maybe even 0. You can check it all if you execute your code under debugger. Find out the reason and check the size of a collection/array before accessing an element by index.

—SA

Posted 11-Jun-13 16:58pm

Sergey Alexandrovich Kryukov