Index was outside the bounds of the array. ?

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C#

cmd = new SqlCommand("select RefferBy from UsersIncome where UserName='" + Label1.Text + "'", con);

    dtr = cmd.ExecuteReader();
        if (dtr.Read())
    {
       Label2.Text = dtr[0].ToString();
       Label3.Text = dtr[1].ToString();
        Label4.Text = dtr[2].ToString();
       Label5.Text = dtr[3].ToString();
    }

it is showing Index was outside the bounds of the array why ?????

Posted 24-Dec-11 8:05am

Pr!y@

Updated 24-Dec-11 8:18am

Chris Maunder773.3K

v2

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Richard MacCutchan 24-Dec-11 14:31pm

Are you sure that dtr contains 4 elements?

3 solutions

Solution 1

Because dtr doesn't have enough columns to support your code.

Posted 24-Dec-11 8:35am

#realJSOP

Comments

Monjurul Habib 24-Dec-11 14:39pm

excellent,5!

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Monjurul Habib · Accepted Answer · 2011-12-24T08:38:00

C#

cmd = new SqlCommand("select RefferBy from UsersIncome where UserName='" + Label1.Text + "'", con);

    dtr = cmd.ExecuteReader();
        if (dtr.Read())
    {
       Label2.Text = dtr[0].ToString();
       /*Label3.Text = dtr[1].ToString();
        Label4.Text = dtr[2].ToString();
       Label5.Text = dtr[3].ToString();*/
    }

Kim Togo · Accepted Answer · 2011-12-24T10:15:00

Check out SQL Tutorial[^] for basic understanding of SQL syntax.

The problem with your code is, that there is only 1 column in your SELECT statement. "RefferBy".

If you want to read all rows, you have to loop the DataReader.
Check out Retrieving Data Using a DataReader[^]

Hope it can help you.

Index was outside the bounds of the array. ?

3 solutions

Solution 1

Solution 2

Solution 3

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