Index was outside the bounds of the array. how to solve this error?

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C#

con = new SqlConnection("Data Source=MNISH-PC\\SQLEXPRESS;Initial Catalog=ecommerce;Integrated Security=True");

       con.Open();
       string str = "select FirstName from Newuser where FirstName ='" + Label1.Text + "'";
       cmd = new SqlCommand(str, con);
       dr = cmd.ExecuteReader();
       while (dr.Read())
       {
         Textname.Text = dr["FirstName"].ToString();
         TextLastName.Text = dr["LastName"].ToString();
           TextAge.Text = dr[8].ToString();
           TextEmailId.Text = dr["EmailId"].ToString();
         TextLastName.Text = dr["LastName"].ToString();


       }
       con.Close();

Posted 21-Jan-13 0:35am

M@anish

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Member 9626721 21-Jan-13 6:39am

TextAge.Text = dr[8].ToString(); I think This line return error.Check this Line

3 solutions

Solution 1

You are trying to access an array element which is at an index greater than the size of the array itself.

You dont have an an eighth column in your result set.
Infact, you have just one column FirstName in your query.

string str = "select FirstName from Newuser where FirstName ='" + Label1.Text + "'";

Posted 21-Jan-13 0:43am

Abhinav S

Solution 4

Hi,

In your Select statement you call only FirstName alone

C#

"select FirstName from Newuser where FirstName ='" + Label1.Text + "'";

C#

Textname.Text = dr["FirstName"].ToString();
      TextLastName.Text = dr["LastName"].ToString();
        TextAge.Text = dr[8].ToString();
        TextEmailId.Text = dr["EmailId"].ToString();
      TextLastName.Text = dr["LastName"].ToString();

why are you calling the highlighted one's...
in your DataReader having one column only. But in your code you call more than one.

That's the issue on here..

Posted 21-Jan-13 1:16am

pranathis012

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Valery Possoz · Accepted Answer · 2013-01-21T00:44:00

Hello,

It looks like the SQL statement is not correct, and the code is not correct too...

You wrote:

C#

Textname.Text = dr["FirstName"].ToString();
         TextLastName.Text = dr["LastName"].ToString();
           TextAge.Text = dr[8].ToString();
           TextEmailId.Text = dr["EmailId"].ToString();
         TextLastName.Text = dr["LastName"].ToString();

This means that the columns FirstName, LastName, EmailId must be fields present in your SQL statement.
And dr[8] means that there are at least 9 elements in your SQL select.

As you wrote "select FirstName from Newuser... " that means there is only 1 element in your SQL statement and it won't work as there are plenty of missing data.

so a way to solve it is to rework your statement:

C#

Select FirstName, LastName, Age, EmailId From Newuser where FirstName ='" + Label1.Text + "'"

and replace

C#

TextAge.Text = dr[8].ToString();

with

C#

TextAge.Text = dr["Age"].ToString();

Assuming there is a column called "Age".

Valery.