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I wrote a small C# application, which reads an Excel file and should import the data into an existing SQL Server database.

As there is a foreign key constraint in the table the entries should be inserted to, I already prevented this error directly in my SQL query by using

IF NOT EXISTS (SELECT * FROM [dbo].[InvoiceAccount] 
               WHERE Caption = @Caption) 
    INSERT INTO [dbo].[InvoiceAccount] (Caption, IdInvoiceAccountType, Account)     
    VALUES (@Caption, @IdInvoiceAccountType, @Account)

On my development machine, executing my app and trying to insert an Excel sheet works fine without any issues.

As soon as I am doing the same on a different PC, I do get a ThreadExceptionDialog, although the SQL query works as expected.

The C# code looks like this:

foreach (DataGridViewRow row in dataGridViewToInsert.Rows)
{
    using (SqlConnection con = new SqlConnection(ConfigurationManager.AppSettings.Get("connectionString")))
    {
        using (SqlCommand cmd = new SqlCommand("IF NOT EXISTS (SELECT * FROM [dbo].[InvoiceAccount] WHERE Caption = @Caption) INSERT INTO [dbo].[InvoiceAccount] (Caption, IdInvoiceAccountType, Account) VALUES (@Caption, @IdInvoiceAccountType, @Account)", con))
        {
            Debug.WriteLine(cmd.CommandText);

            cmd.Parameters.AddWithValue("@Caption", row.Cells[1].Value);

            switch (row.Cells[2].Value)
            {
                case "Erlöskonto":
                case "Revenue account":
                    cmd.Parameters.AddWithValue("@IdInvoiceAccountType", 1);
                    break;

                case "Kostenkonto":
                case "Expense Account":
                    cmd.Parameters.AddWithValue("@IdInvoiceAccountType", 2);
                    break;

                case "Geldkonto":
                case "Cash Account":
                    cmd.Parameters.AddWithValue("@IdInvoiceAccountType", 3);
                    break;

                case "Abschreibungskonto":
                case "Depreciation Account":
                    cmd.Parameters.AddWithValue("@IdInvoiceAccountType", 4);
                    break;

                default:
                    cmd.Parameters.AddWithValue("@IdInvoiceAccountType", 2);
                    break;
            };

            cmd.Parameters.AddWithValue("@Account", row.Cells[0].Value);

            con.Open();
            addedRows = cmd.ExecuteNonQuery();
            con.Close();
        }
    }

    if (addedRows > 0)
    {
        insertedRows = insertedRows + addedRows;
    }
}

So I really do not understand, what I am doing wrong here and why I only get the ThreadExceptionDialog only on other machines then my development PC.

What can I do to prevent this behaviour?


The exception:

System.Data.SqlClient.SqlException (0x80131904): The INSERT statement conflicted with the FOREIGN KEY constraint "FK_VatType2InvoiceAccount_InvoiceAccount". The conflict occurred in database "easyjob", table "dbo.InvoiceAccount", column 'IdInvoiceAccount'.
The INSERT statement conflicted with the FOREIGN KEY constraint "FK_VatType2InvoiceAccount_InvoiceAccount". The conflict occurred in database "easyjob", table "dbo.InvoiceAccount", column 'IdInvoiceAccount'.
The INSERT statement conflicted with the FOREIGN KEY constraint "FK_VatType2InvoiceAccount_InvoiceAccount". The conflict occurred in database "easyjob", table "dbo.InvoiceAccount", column 'IdInvoiceAccount'.
The INSERT statement conflicted with the FOREIGN KEY constraint "FK_VatType2InvoiceAccount_InvoiceAccount". The conflict occurred in database "easyjob", table "dbo.InvoiceAccount", column 'IdInvoiceAccount'.
The INSERT statement conflicted with the FOREIGN KEY constraint "FK_VatType2InvoiceAccount_InvoiceAccount". The conflict occurred in database "easyjob", table "dbo.InvoiceAccount", column 'IdInvoiceAccount'.
The INSERT statement conflicted with the FOREIGN KEY constraint "FK_VatType2InvoiceAccount_InvoiceAccount". The conflict occurred in database "easyjob", table "dbo.InvoiceAccount", column 'IdInvoiceAccount'.
The INSERT statement conflicted with the FOREIGN KEY constraint "FK_VatType2InvoiceAccount_InvoiceAccount". The conflict occurred in database "easyjob", table "dbo.InvoiceAccount", column 'IdInvoiceAccount'.
The statement has been terminated.
The statement has been terminated.
The statement has been terminated.
The statement has been terminated.
The statement has been terminated.
The statement has been terminated.
   bei System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)
   bei System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)
   bei System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj, Boolean callerHasConnectionLock, Boolean asyncClose)
   bei System.Data.SqlClient.TdsParser.TryRun(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj, Boolean& dataReady)
   bei System.Data.SqlClient.SqlCommand.RunExecuteNonQueryTds(String methodName, Boolean async, Int32 timeout, Boolean asyncWrite)
   bei System.Data.SqlClient.SqlCommand.InternalExecuteNonQuery(TaskCompletionSource`1 completion, String methodName, Boolean sendToPipe, Int32 timeout, Boolean& usedCache, Boolean asyncWrite, Boolean inRetry)
   bei System.Data.SqlClient.SqlCommand.ExecuteNonQuery()
   bei ejDatabaseAnonymizer.MasterDataUserControl.buttonImport_Click(Object sender, EventArgs e)
   bei System.Windows.Forms.Control.OnClick(EventArgs e)
   bei System.Windows.Forms.Button.OnClick(EventArgs e)
   bei System.Windows.Forms.Button.OnMouseUp(MouseEventArgs mevent)
   bei System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
   bei System.Windows.Forms.Control.WndProc(Message& m)
   bei System.Windows.Forms.ButtonBase.WndProc(Message& m)
   bei System.Windows.Forms.Button.WndProc(Message& m)
   bei System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
   bei System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
   bei System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
ClientConnectionId:d94a62b5-fb09-4d31-9561-76b2525c7321
Fehlernummer (Error Number):547,Status (State):0,Klasse (Class):16
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2 回答 2

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真丢人!该异常是由另一个sql查询引起的,该查询是在上述查询之后直接调用的。所以我能够修复它。

但是我仍然不明白为什么ThreadExceptionDialog没有出现在我的开发机器上,尽管我也在它上面运行了完全相同的版本......

谢谢你的帮助。

于 2020-04-07T18:24:17.133 回答
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“在对表执行 INSERT 命令并且表的列之一引用另一个表上的主键并且插入到该特定列的值在另一个表中不存在时,会发生此错误。”

检查外键引用的行是否存在。

看到这个,相信会对你有所帮助: http ://www.sql-server-helper.com/error-messages/msg-547-insert.aspx

于 2020-04-07T10:55:59.953 回答