dotConnect for PostgreSQL Documentation
Devart.Common Namespace / DbScript Class / Error Event
Example

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    Error Event (DbScript)
    In This Topic
    Occurs when a SQL statement within script has produced an error.
    Syntax
    'Declaration
     
    Public Event Error As ScriptErrorEventHandler
    public event ScriptErrorEventHandler Error
    Event Data

    The event handler receives an argument of type ScriptErrorEventArgs containing data related to this event. The following ScriptErrorEventArgs properties provide information specific to this event.

    PropertyDescription
    Gets the System.Exception instance that DbScript throws.  
    Gets or sets whether the current error will be ignored or not.  
    Gets length of statement where an error occurred.  
    Gets number of the line where an error occurred.  
    Gets position in the line where an error occurred.  
    Gets offset of statement where an error occurred.  
    Gets type of the statement that caused an error.  
    Gets SQL statement where an error occurred.  
    Remarks

    This event can be generated by Execute and ExecuteNext methods when an error happens.

    By default, Execute method stops and returns immediately after event handler finishes. If you want to ignore the error and continue execution of the script, set ScriptErrorEventArgs.Ignore property to true.

    Example
    This sample demonstrates how to execute script and retrieve information about execution flow using Progress and Error events.
    [STAThread]
    static void Main(string[] args)
    {
    string script =
      "DROP TABLE DEPT;"+
      "CREATE TABLE DEPT ("+
      "  DEPTNO INT PRIMARY KEY,"+
      "  DNAME VARCHAR(14),"+
      "  LOC VARCHAR(13)"+
      ")WITH OIDS;"+
      "INSERT INTO DEPT VALUES (10,'ACCOUNTING','NEW YORK');"+
      "INSERT INTO DEPT VALUES (20,'RESEARCH','DALLAS');"+
      "INSERT INTO DEPT VALUES (30,'SALES','CHICAGO');"+
      "INSERT INTO DEPT VALUES (40,'OPERATIONS','BOSTON');"+
      "SELECT * FROM DEPT";
          PgSqlConnection pgConn = new PgSqlConnection(
              "host=server;database=test;user id=postgres;");
          PgSqlScript pgScript = new PgSqlScript(script,pgConn);
          pgScript.Progress += new Devart.Common.ScriptProgressEventHandler(OnProgress);
          pgScript.Error += new Devart.Common.ScriptErrorEventHandler(OnError);
          pgConn.Open();
          pgScript.Execute();
          pgConn.Close();
        }
    
    static void OnProgress(object sender, Devart.Common.ScriptProgressEventArgs e)
    {
      Console.WriteLine(e.Text);
      Console.WriteLine("  Successfully executed.");
    }
    
    static void OnError(object sender, Devart.Common.ScriptErrorEventArgs e)
    {
      e.Ignore = true;
      Console.WriteLine(e.Text);
      Console.WriteLine("  Failed.");
    }
    Module Module1
    
      Friend WithEvents pgScript As Devart.Data.PostgreSql.PgSqlScript
    
      Sub Main()
        Dim script As String = _
      "DROP TABLE DEPT;" + _
      "CREATE TABLE DEPT (" + _
      "  DEPTNO INT PRIMARY KEY," + _
      "  DNAME VARCHAR(14)," + _
      "  LOC VARCHAR(13)" + _
      ")WITH OIDS;" + _
      "INSERT INTO DEPT VALUES (10,'ACCOUNTING','NEW YORK');" + _
      "INSERT INTO DEPT VALUES (20,'RESEARCH','DALLAS');" + _
      "INSERT INTO DEPT VALUES (30,'SALES','CHICAGO');" + _
      "INSERT INTO DEPT VALUES (40,'OPERATIONS','BOSTON');" + _
      "SELECT * FROM DEPT"
        Dim pgConn As PgSqlConnection = New PgSqlConnection( _
            "host=server;database=test;user id=postgres;")
        pgScript = New PgSqlScript(script, pgConn)
        pgConn.Open()
        pgScript.Execute()
        pgConn.Close()
        Console.ReadLine()
      End Sub
    
      Sub OnProgress(ByVal sender As Object, ByVal e As Devart.Common.ScriptProgressEventArgs) Handles pgScript.Progress
        Console.WriteLine(e.Text)
        Console.WriteLine("  Successfully executed.")
      End Sub
    
      Sub OnError(ByVal sender As Object, ByVal e As Devart.Common.ScriptErrorEventArgs) Handles pgScript.Error
        e.Ignore = True
        Console.WriteLine(e.Text)
        Console.WriteLine("  Failed.")
      End Sub
    
    End Module
    Requirements

    Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

    See Also