我在我的应用程序中遇到了一个错误,但是我不知道如何解决它。以下是代码:
SqlConnection myConnection = new SqlConnection(ConfigurationManager.ConnectionStrings["DBConnection"].ConnectionString);
myConnection.Open();
SqlCommand cmd = new SqlCommand("SELECT ServerIP FROM Servers", myConnection);
SqlDataReader rdr = cmd.ExecuteReader();
if (rdr.HasRows)
{
while (rdr.Read())
{
string serverIP = rdr["ServerIP"].ToString();
ScheduledTasks st = new ScheduledTasks(@"\\" + serverIP);
string[] taskNames = st.GetTaskNames();
foreach (string name in taskNames)
{
Task t = st.OpenTask(name);
var status = t.Status;
var recentRun = t.MostRecentRunTime;
var nextRun = t.NextRunTime;
var appName = t.ApplicationName;
SqlConnection myConnection2 = new SqlConnection(ConfigurationManager.ConnectionStrings["DBConnection"].ConnectionString);
SqlCommand myCommand2 = new SqlCommand("sp_AddScheduledTasks", myConnection2);
try
{
myConnection2.Open();
myCommand2.CommandType = CommandType.StoredProcedure;
myCommand2.Parameters.Add("@ID", SqlDbType.Int);
myCommand2.Parameters["@ID"].Direction = ParameterDirection.Output;
myCommand2.Parameters.Add("@ServerIP", SqlDbType.NVarChar, 20).Value = serverIP;
myCommand2.Parameters.Add("@TaskName", SqlDbType.NVarChar, 50).Value = t;
myCommand2.Parameters.Add("@MostRecentRun", SqlDbType.DateTime).Value = recentRun;
myCommand2.Parameters.Add("@NextRunTime", SqlDbType.DateTime).Value = nextRun;
myCommand2.Parameters.Add("@AppName", SqlDbType.NVarChar, 50).Value = appName;
myCommand2.Parameters.Add("@Status", SqlDbType.NVarChar, 50).Value = status;
int rows = myCommand2.ExecuteNonQuery();
}
finally
{
myConnection2.Close();
}
我收到的错误与
ExecuteNonQuery
有关。它说:
InvalidCastException 无法将参数值从任务转换为字符串。
我认为这与我放 try 的位置有关(在 if 语句内部),但我不确定。任何帮助都将不胜感激。
谢谢,
Matt