/*
* Init all table names into a listbox
*/
private void InitTableNames()
{
// show DB tables
SQLManager manager = new SQLManager(sSelectedDB);
string sQuery = "Select name, id from sysobjects where xtype='U'";
// handle errors
//if (manager.GetQueryDataSet(sQuery) == null)
//{
// HandleQueryError();
// return;
//}
DataSet objSet = manager.GetQueryDataSet(sQuery);
ListBoxTables.DataSource = objSet;
ListBoxTables.DataTextField = "name";
ListBoxTables.DataValueField = "id";
ListBoxTables.DataBind();
manager.CloseConnection();
}
/*
* Run selected query and populate the data grid
*/
private void ExecuteRelationalQuery(string sQuery)
{
SQLManager manager = new SQLManager(sSelectedDB);
DataTable objTable = new DataTable();
// handle errors
//if (manager.GetQueryResult(sQuery) == null)
//{
// HandleQueryError();
// return;
//}
objTable.Load(manager.GetQueryResult(sQuery));
GridViewData.DataSource = objTable;
GridViewData.DataBind();
manager.CloseConnection();
// store the data table and prepare the mining link
Session.Add("queryData", objTable);
Session.Add("queryTable", ListBoxTables.SelectedItem.ToString());
Session.Add("queryDB", DropDownListDatabases.SelectedItem.ToString());
}
/*
* Init databases from the server
*/
private void InitDatabases()
{
SQLManager manager = new SQLManager();
string sQuery = "SELECT name, dbid FROM master..sysdatabases order by name";
// handle errors
//if (manager.GetQueryDataSet(sQuery) == null)
//{
// HandleQueryError();
// return;
//}
DataSet objSet = manager.GetQueryDataSet(sQuery);
DropDownListDatabases.DataSource = objSet;
DropDownListDatabases.DataTextField = "name";
DropDownListDatabases.DataValueField = "dbid";
DropDownListDatabases.DataBind();
manager.CloseConnection();
}
/*
* Select all the column names for the selected table
*/
protected void ListBoxTables_SelectedIndexChanged(object sender, EventArgs e)
{
// Sets the array count variable makes sure index is not -1.
if (ListBoxTables.SelectedIndex >= 0)
{
// clear current query
GridViewData.DataSource = null;
GridViewData.DataBind();
// list selected table: to be removed
//Label1.Text = ListBoxTables.SelectedItem.ToString();
string sQueryText = "SELECT COLUMN_NAME FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME = '" +
ListBoxTables.SelectedItem.ToString() + "'ORDER BY ORDINAL_POSITION";
// execute query
SQLManager manager = new SQLManager(sSelectedDB);
DataTable objTable = new DataTable();
// handle errors
//if (manager.GetQueryResult(sQueryText) == null)
//{
// HandleQueryError();
// return;
//}
objTable.Load(manager.GetQueryResult(sQueryText));
GridViewMain.DataSource = objTable;
GridViewMain.DataBind();
manager.CloseConnection();
}
}
