vb.net : There is no row at position 1.

The following line of code in the attached function crashes with the error "There is no row at position 1"
TextBox_Sent.Text= dt.Rows[1]["Sent"].ToString();

I do not understand this since the value of dt.rows[0] has a value and the datatable gets populated with 1 row....

Any ideas..why this crashes?

Thanks

private void SetAgreement()
    {
        DataTable dt = GetProviderAssignmentAggreementData(AssignmentId);
 
        if (dt.Rows.Count == 0)
        {
            hdn_AgreementFiledId.Value = TextBox_Sent.Text = TextBox_Received.Text = string.Empty;
 
        }
        else
        {
          hdn_AgreementFiledId.Value = dt.Rows[0]["AgreementFiledID"].ToString();
          TextBox_Sent.Text= dt.Rows[1]["Sent"].ToString();
          TextBox_Received.Text = dt.Rows[2]["Received"].ToString();
        }
    }

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