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delete command with sqlite

delete command with sqlite

delete command with sqlite

the class listed below is used to access a sqlite database.
read data from database or insert or update data works fine.delete however does not.
what I want to do is delete one record by given id from one table (where it's the primary key) and all records by given id from a second table.
on debug I see that DeleteData() removes the corresponding records correctly but the DataAdapter's Update-Method will not do so in the database.
any idea what will cause this problem. any help appreciated.
thanks in advance

public class CTableAdapter
public CTableAdapter(string name)
Name = name;
SqlCommand = new SQLiteCommand();
DataAdapter = new SQLiteDataAdapter();
Builder = new SQLiteCommandBuilder();
Dataset = new DataSet(name);
UpdateFlag = false;


public DataTable Load()
return(this.Load(Dataset.DataSetName,"select * from "+Name));

public DataTable Load(string datasetname, string query)
SqlCommand.CommandText = query;
try {

DataAdapter.SelectCommand = SqlCommand;
DataAdapter.SelectCommand.Connection = SqlConnection;
Datatable = Dataset.Tables[0];
Datatable.TableName = datasetname;
catch(Exception e)
Info = e.Message;
Datatable = null;

Builder.DataAdapter = DataAdapter;


public void Delete(int id)

public void DeleteData(int id)
DataRow[] dra = Datatable.Select("ID="+id);
for (int r = 0; r < dra.Length; r++) {

private void _Update()
try {


UpdateFlag = false;
catch(Exception ex)
string s = ex.Message;


public SQLiteConnection SqlConnection { get; set; }
public string Name { get; set; }
public DataSet Dataset { get; private set; }
public DataTable Datatable { get; private set; }
public string Info { get; private set; }
public bool UpdateFlag { get; set; }
private SQLiteCommand SqlCommand { get; set; }

SQLiteDataAdapter DataAdapter;
SQLiteCommandBuilder Builder;

RE: delete command with sqlite

What is DataTable? Does it issue SQL commands to SQLite? If not then you need to issue some SQL to remove the data from the database.

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