Instead of directly binding the datasource to DataGridView, I added columns manually and then let the rows get bound to them. I created one temporary dataset to get the total records. I used the adapter’s Fill() method, which takes the starting record and number of records as input parameters with dataset. I tried to bind a temporary datatable object to DataGridView and then update the main table, but I was not able to do so. The following two functions load the data and bind it to a DataGridView. TempDataSet = new DataSet("TempDataSet") private void SetDataObjects()Ĭonnection = new SqlConnection(connectionString) Ĭommand = new SqlCommand(sqlQuery, connection) īuilder = new SqlCommandBuilder(adapter) This function sets the database objects required throughout the application. You can delete/update/insert multiple records. Use buttons such as Add/Update, Commit, and Delete to insert/update or delete.Get all tables from the selected database.Get all databases from the selected instance.You need to follow the sequence, like this: This is push all call stack to the parent thread from the executing thread and puts the parent thread into working status. You have to declare a delegate with a similar signature of call back method and call the same method by using the control’s Invoke() method. InvokeRequired and Invoke() functions to overcome this problem. In my previous project, I implemented the same architecture and. I have faced a very common problem of cross thread exception. Builder will automatically generate insert, update, and delete command, provided that you select a primary key in your select query. I have designed this application with SqlCommandBuilder because I have some questions about using SqlCommandBuilder. A switch case statement manages the behavior of different call backs. This is done because only one call back method handles all call backs from async calls. This enum is used to set a private variable called when making calls to the SQL server list, databases, and tables. When you start reading the code from the beginning, there is an enum named CallFor. Delegates are the best practices to design the async architectures because most things are handled internally by CLR and you do not have to bother much about them. I use this feature to get all tables from the selected database. NET 2.0, SqlCommand object supports async calling to the database. Because the SQLEnumerator does not supporting async calling, I have added delegates to call those methods asynchronously. The application uses an async calling mechanism to make database calls.
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