索引（从零开始）必须大于或等于零且小于参数列表的大小 (VB.NET)

Question

我在生成报告时收到此错误。它说“索引（从零开始）必须大于或等于零且小于参数列表的大小。”

我该如何解决这个问题？谁能帮我这个？我是 vb.net 编程的新手。提前致谢。

这是我的代码：

If String.IsNullOrEmpty(reportFilter) Then
   daEmployee.SetWhereClause(String.Format("cdr_site_id = '{0}' AND cdr_datetime BETWEEN '{1}' AND '{2}' AND cdr_call_class_code = 'OUTGOING' AND cdr_call_type_id IN({3}) AND a.employee_id IN({4}) group by cdr_date,cdr_time,cdr_call_type_code ORDER BY employee_name", siteId, employeeId))
Else
   daEmployee.SetWhereClause(String.Format("cdr_site_id = '{0}' AND cdr_datetime BETWEEN '{1}' AND '{2}' AND cdr_call_class_code = 'OUTGOING' AND cdr_call_type_id IN({3}) AND a.employee_id IN({4}) group by cdr_date,cdr_time,cdr_call_type_code ORDER BY employee_name", siteId, employeeId))
End If

Answer 1

string.Format 需要五个替换参数，而您只传递了两个。您正在访问未传递的 {2}、{3}、{4} 索引参数。

daEmployee.SetWhereClause(String.Format("cdr_site_id = '{0}' AND cdr_datetime BETWEEN '{1}' AND '{2}' AND cdr_call_class_code = 'OUTGOING' AND cdr_call_type_id IN({3}) AND a.employee_id IN({4}) group by cdr_date,cdr_time,cdr_call_type_code ORDER BY employee_name", siteId, employeeId, another-three-parameters-here))