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How to: Insert New Records into a Database

To insert new records into a database, you can use the TableAdapter.Update method, or one of the TableAdapter's DBDirect methods (specifically the TableAdapter.Insert method). For more information, see TableAdapter Overview.

If your application does not use TableAdapters, you can use command objects to interact and insert new records in your database (for example, SqlCommand).

Use the TableAdapter.Update method when your application uses datasets to store data. The Update method sends all changes (updates, inserts, and deletes) to the database.

Use the TableAdapter.Insert method when your application uses objects to store data, or when you want finer control over creating new records in the database.

If your TableAdapter does not have an Insert method, it means that either the TableAdapter is configured to use stored procedures or its GenerateDBDirectMethods property is set to false. Try setting the TableAdapter's GenerateDBDirectMethods property to true from within the Dataset Designer and then save the dataset to regenerate the TableAdapter. If the TableAdapter still does not have an Insert method, then the table probably does not provide enough schema information to distinguish between individual rows (for example, no primary key is set on the table).

TableAdapters provide different ways to insert new records into a database, depending on the requirements of your application.

If your application uses datasets to store data, then you can simply add new records to the desired DataTable in the dataset, and then call the TableAdapter.Update method. The TableAdapter.Update method takes any changes in the DataTable and sends those changes to the database (including modified and deleted records).

To insert new records into a database using the TableAdapter.Update method

  1. Add new records to the desired DataTable by creating a new DataRow and adding it to the Rows collection. For more information, see How to: Add Rows to a DataTable.

  2. After the new rows are added to the DataTable, call the TableAdapter.Update method. You can control the amount of data to update by passing in either an entire DataSet, a DataTable, an array of DataRows, or a single DataRow.

    The following code shows how to add a new record to a DataTable and then call the TableAdapter.Update method to save the new row to the database. (This example uses the Northwind database Region table.)

    // Create a new row.
    NorthwindDataSet.RegionRow newRegionRow;
    newRegionRow = northwindDataSet.Region.NewRegionRow();
    newRegionRow.RegionID = 5;
    newRegionRow.RegionDescription = "NorthWestern";
    
    // Add the row to the Region table 
    this.northwindDataSet.Region.Rows.Add(newRegionRow);
    
    // Save the new row to the database 
    this.regionTableAdapter.Update(this.northwindDataSet.Region);
    

If your application uses objects to store the data in your application, you can use the TableAdapter.Insert method to create new rows directly in the database. The Insert method accepts the individual values for each column as parameters. Calling the method inserts a new record into the database with the parameter values passed in.

The following procedure uses the Northwind database Region table as an example.

To insert new records into a database using the TableAdapter.Insert method

  • Call the TableAdapter's Insert method, passing in the values for each column as parameters.

    Note Note

    If you do not have an instance available, instantiate the TableAdapter you want to use.

    NorthwindDataSetTableAdapters.RegionTableAdapter regionTableAdapter = 
        new NorthwindDataSetTableAdapters.RegionTableAdapter();
    
    regionTableAdapter.Insert(5, "NorthWestern");
    

The following example inserts new records directly into a database using command objects. For more information on using command objects to execute commands and stored procedures, see Fetching Data into Your Application.

The following procedure uses the Northwind database Region table as an example.

To insert new records into a database using command objects

  • Create a new command object, set its Connection, CommandType, and CommandText properties.

    System.Data.SqlClient.SqlConnection sqlConnection1 = 
        new System.Data.SqlClient.SqlConnection("YOUR CONNECTION STRING");
    
    System.Data.SqlClient.SqlCommand cmd = new System.Data.SqlClient.SqlCommand();
    cmd.CommandType = System.Data.CommandType.Text;
    cmd.CommandText = "INSERT Region (RegionID, RegionDescription) VALUES (5, 'NorthWestern')";
    cmd.Connection = sqlConnection1;
    
    sqlConnection1.Open();
    cmd.ExecuteNonQuery();
    sqlConnection1.Close();
    

You must have access to the database you are trying to connect to, as well as permission to perform inserts into the desired table.

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