[Solved] ASP.Net Error: Can not convert from Decimal to int

Below is my code in which i am trying to insert decimal value to database but having error.

Arguement 3 Can not convert from Decimal to int

ResultValue += this.InsertRows(i_id, qty, rate);

        DataTable dt = (DataTable)ViewState["dt"];
        string codeitem, qty,  ResultValue = 0;
        decimal rate;
        foreach (DataRow row in dt.Rows)
        {
            rate = decimal.Parse(row["I_Rate"].ToString());
            qty = decimal.Parse(row["QTY"].ToString());
            codeitem = int.Parse(row["I_ID"].ToString());
            ResultValue += this.InsertRows(codeitem, qty, rate);
        }
        if (ResultValue == dt.Rows.Count)
        {
          //  Response.Redirect("BalePack.aspx");
             Response.Redirect("Packrpt.aspx?PID=" + lbid.Text + "");
        }
        else
        {
            Response.Write("<script>alert('Not Save'</script>");
        }
    }
}
 
private void InsertRows(string codeitem, string qty, string rate)
{
    using (SqlCommand cmd = new SqlCommand("[SP_insert_Sales]", con))
    {
        cmd.CommandType = CommandType.StoredProcedure;
        cmd.Parameters.AddWithValue("@Action", "Detail");
        cmd.Parameters.AddWithValue("@S_ID", lbid.Text);
        cmd.Parameters.AddWithValue("@I_ID", codeitem);
        cmd.Parameters.AddWithValue("@I_Rate", Decimal.Parse(rate));
        cmd.Parameters.AddWithValue("@E_Date", DateTime.Now.ToString());
        cmd.Parameters.AddWithValue("@E_Time", DateTime.Now.ToString("HH:mm:ss"));
        con.Open();
        int ResultValue = cmd.ExecuteNonQuery();
        con.Close();
        return ResultValue;
    }

dt.Columns.Add("rate", typeof(decimal));
 dt.Columns.Add("qty", typeof(string));
dt.Columns.Add("codeitem", typeof(string));
 ViewState["dt"] = dt;