C# sql只创建一个表

C# sql只创建一个表,c#,sql,winforms,sql-server-ce,C#,Sql,Winforms,Sql Server Ce,我有一段代码专门用于创建几个表,但是它创建了第一个表,然后抛出异常,但是异常不包含任何内容,它是空白的。这是我的密码: string connectionString = "DataSource=\"EventControl.sdf\""; SqlCeEngine en = new SqlCeEngine(connectionString); en.CreateDatabase(); string createTable = "CREATE TAB

我有一段代码专门用于创建几个表,但是它创建了第一个表,然后抛出异常,但是异常不包含任何内容,它是空白的。这是我的密码:

string connectionString = "DataSource=\"EventControl.sdf\"";
        SqlCeEngine en = new SqlCeEngine(connectionString);
        en.CreateDatabase();
        string createTable = "CREATE TABLE Login (userName nvarchar(50), UserType nvarchar(10), Salt nvarchar(100), Hash nvarchar(100))";
        string connection = "Data Source =\"EventControl.sdf\"";
        SqlCeConnection connexion = new SqlCeConnection(connection);
        SqlCeCommand table = new SqlCeCommand(createTable, connexion);
        try
        {
            connexion.Open();
        }
        catch (Exception ex)
        {
            MessageBox.Show(ex.ToString());
        }
        table.ExecuteNonQuery();
        connexion.Close();
        string createTable1 = "CREATE TABLE Logs (LogNo nvarchar(5), LoggedBy nvarchar(20), DateAndTime nvarchar(20), Callsign nvarchar(20), Category nvarchar(20), SubCategory nvarchar(20), Escalated nvarchar(15), Summary nvarchar(MAX), Complete nvarchar(10))";
        string connection1 = "Data Source =\"EventControl.sdf\"";
        SqlCeConnection connexion1 = new SqlCeConnection(connection1);
        SqlCeCommand table1 = new SqlCeCommand(createTable1, connexion1);
        try
        {
            connexion1.Open();
        }
        catch (Exception ex)
        {
            MessageBox.Show(ex.ToString());
        }
        table1.ExecuteNonQuery();
        connexion1.Close();
        string createTable2 = "CREATE TABLE Sites (SiteName nvarchar(100),SiteAddress nvarchar(100),PersonInCharge nvarchar(100))";
        string connection2 = "Data Source =\"EventControl.sdf\"";
        SqlCeConnection connexion2 = new SqlCeConnection(connection2);
        SqlCeCommand table2 = new SqlCeCommand(createTable2, connexion2);
        try
        {
            connexion2.Open();
        }
        catch (Exception ex)
        {
            MessageBox.Show(ex.ToString());
        }
        table2.ExecuteNonQuery();
        connexion2.Close();
        string createTable3 = "CREATE TABLE Categories (Category nvarchar(50), SubCategory nvarchar(50))";
        string connection3 = "Data Source =\"EventControl.sdf\"";
        SqlCeConnection connexion3 = new SqlCeConnection(connection3);
        SqlCeCommand table3 = new SqlCeCommand(createTable3, connexion3);
        try
        {
            connexion3.Open();
        }
        catch (Exception ex)
        {
            MessageBox.Show(ex.ToString());
        }
        table3.ExecuteNonQuery();
        connexion3.Close();
        string createTable4 = "CREATE TABLE Callsigns (StaffName nvarchar (50), Callsign nvarchar(50))";
        string connection4 = "Data Source =\"EventControl.sdf\"";
        SqlCeConnection connexion4 = new SqlCeConnection(connection4);
        SqlCeCommand table4 = new SqlCeCommand(createTable4, connexion4);
        try
        {
            connexion4.Open();
        }
        catch (Exception ex)
        {
            MessageBox.Show(ex.ToString());
        }
        table4.ExecuteNonQuery();
        connexion4.Close();
        string createTable5 = "CREATE TABLE Events (EventName nvarchar(100), EventLocation nvarchar(100), PersonInCharge nvarchar(100))";
        string connection5 = "Data Source =\"EventControl.sdf\"";
        SqlCeConnection connexion5 = new SqlCeConnection(connection5);
        SqlCeCommand table5 = new SqlCeCommand(createTable5, connexion5);
        try
        {
            connexion5.Open();
        }
        catch (Exception ex)
        {
            MessageBox.Show(ex.ToString());
        }
        table5.ExecuteNonQuery();
        connexion5.Close();
它到达table1.ExecuteOnQuery,然后停止。有人能帮忙吗

PS,在有人说为什么不在VS中创建数据库之前,这是因为我已经尝试过了,它们在我的计算机上工作得很好,但是当我创建部署的设置文件时,文件夹变得一团糟,程序再也无法识别数据库了

SqlCeEngine engine = new SqlCeEngine("Data Source = AdventureWorks.sdf");
engine.Compact(null);
//you need add a user and a password to acess the database 
engine.Compact("Data Source=; Password =a@3!7f$dQ;");

将表1中的最大值更改为4000

SQl Server Compact不支持数据类型nvarchar(MAX),请改用ntext:

Summary ntext,

有错误信息吗?您是否在单步执行代码时运行了SQL Profiler?当你说“停止”是什么意思?就像代码控制停止一样,应用程序崩溃了?SQL Profiler?从没听说过,不过听起来很有用。它不会冻结,它只是停留在那一行,然后打开应该打开的表单,当所有的事情都说了和做了之后。我的建议是,
table1.ExecuteNonQuery()在Try-Catch中,查看是否弹出提示。祝你好运“分析查询时出错。[令牌行编号=1,令牌行偏移量=201,令牌错误=MAX]??完成。将最大值更改为400:)您能解释一下为什么这样做吗?请在系统允许您这样做时接受您自己的答案。”