I currently have this code:
/// <summary>
/// This is an ineffecient method of getting a tenant by their id.
/// </summary>
/// <param name="id">int ID of the tenant to be selected</param>
/// <returns>Tenant with the specific ID, or null if not found.</returns>
public static Tenant GetTenantByID(int id){
RentalEaseDataSetTableAdapters.tblTenantTableAdapter adapter = new RentalEaseLogic.Database.RentalEaseDataSetTableAdapters.tblTenantTableAdapter();
RentalEaseDataSet ds = new RentalEaseDataSet();
adapter.Fill(ds.tblTenant);
DataRow[] rows = ds.tblTenant.Select("ID = " + id);
if (rows.Length > 0) {
return new Tenant(rows[0] as RentalEaseDataSet.tblTenantRow);
} else {
return null;
}
}
Which is pretty terrible in performance. It grabs and loads a large table everytime someone wants one row. There has to be a better way.
How can I select one row from a table, without having to fill an entire table and still keep the strong data typing?
There is. Associate a query with your TableAdapter
. TableAdapter Overview and mainly How to: Create TableAdapter Queries .
Then you fill the dataset with the queried rows.
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