数据从 C# 插入 SQL Server

Question

I'm attempting to insert some data into Microsoft SQL Server, all the data inserted until it gets to the final table scmd3 . Any ideas as to why its not inserting into that table?

Here is my code I have so far... I've tried everything I can think of any help would be appreciated... thanks in advance guys.

Answer 1

Solution: The error wasn't within the insert service code it was in the I service... Just simply adding a question mark solved all my problems. Added the question mark after int, also added the if statement and now everything works beautifully!!!! Posting the answer because if somenoe had posted anything remotely close it would have saved me a days worth of work looking for a single solution... THANKS for all of you that helped.

[DataMember]
public string EmailAddress { get; set; }
[DataMember]
public int? InitialSleep { get; set; }
[DataMember]
public int? RepeatPeriod { get; set; }
[DataMember]
public int? RepeatTimes { get; set; }
[DataMember]
public DateTime? LastSent { get; set; }
[DataMember]
public int TimeSent { get; set; }
[DataMember]
public DateTime DateStarted { get; set; }
[DataMember]
public DateTime LastModified { get; set; }

if statement:

    if (textBox1.Text == "")
        userInfo.InitialSleep = null;
    else
        userInfo.InitialSleep = Convert.ToInt32(textBox1.Text);