如何从CellClick事件调用弹出窗体DataReader

Question

当我将值从调用表单传递给弹出窗口时，会收到值，但是当代码到达while（drInsiderInfo.Read）语句时，它会弹回到调用表单上的insiderPopUp.ShowDialog，而DataReader从不执行。

这是我的CellClick事件代码：

        private void allInsiderTransactionsDataGridView_CellClick(object sender, DataGridViewCellEventArgs e)
    {
        string passedInsider;

        try
        {
            passedInsider = allInsiderTransactionsDataGridView.Rows[e.RowIndex].Cells[3].Value.ToString();

            DataGridViewCell cellClicked = (DataGridViewCell)allInsiderTransactionsDataGridView.Rows[e.RowIndex].Cells[e.ColumnIndex];
            if (cellClicked.ColumnIndex == this.allInsiderTransactionsDataGridView.Columns["Insider"].Index) 
            {
                frmInsiderPopUp insiderPopUp = new frmInsiderPopUp(passedInsider);
                insiderPopUp.passedNumber = passedInsider;
                insiderPopUp.ShowDialog();
            }
        }
        catch (Exception ex)
        {
            throw (ex);
        }
    }

这是我的弹出窗体DataReader代码：

        public string passedNumber { get; set; }

    public frmInsiderPopUp(string passedNumber)
    {
        InitializeComponent();

        passedInsiderNumberTextBox.Text = passedNumber;
        populateVipNumberTextBoxes();

    }

    public void populateVipNumberTextBoxes()
    {

        if (passedInsiderNumberTextBox.Text != null) 

        connect.Open();
        try
        {
            SqlCommand insiderStProc = new SqlCommand("RMM3InsiderInformation");
            insiderStProc.Connection = connect;
            insiderStProc.CommandType = CommandType.StoredProcedure;

            insiderStProc.Parameters.AddWithValue("@InsiderNumber", passedInsiderNumberTextBox.Text);

            using (SqlDataReader drInsiderInfo = insiderStProc.ExecuteReader())
            {
                while (drInsiderInfo.Read())
                {
                    insiderNameTextBox.Text = drInsiderInfo["Name"].ToString();
                    insiderStoreTextBox.Text = drInsiderInfo["Store"].ToString();
                    insiderPhoneTextBox.Text = drInsiderInfo["Phone"].ToString();
                    insiderStreetTextBox.Text = drInsiderInfo["Street"].ToString();
                    insiderSuiteTextBox.Text = drInsiderInfo["Apt"].ToString();
                    insiderCityTextBox.Text = drInsiderInfo["City"].ToString();
                    insiderStateTextBox.Text = drInsiderInfo["State"].ToString();
                    insiderZipCodeMaskedTextBox.Text = drInsiderInfo["ZipCode"].ToString();
                    insiderEmailTextBox.Text = drInsiderInfo["Email"].ToString();
                    insiderSignUpDateMaskedTextBox.Text = drInsiderInfo["DateIn"].ToString();
                    insiderLastMailedMaskedTextBox.Text = drInsiderInfo["LastMailed"].ToString();
                    insiderTotalTransactionsTextBox.Text = drInsiderInfo["TotalTrans"].ToString();
                    insiderTotalDollarsTextBox.Text = drInsiderInfo["TotalDollars"].ToString();
                    insiderColorTextBox.Text = drInsiderInfo["Color"].ToString();
                }
            }
        }
        catch (Exception ex)
        {
            throw (ex);
        }
           connect.Close();
    }