public DB_Helper getInstance()
{
if (instance == null)
{
instance = new DB_Helper();
}
return(instance);
}
private void DB_Delete()
{
DB_Helper.Query_Delete(textBox1.Text);
}
private void DB_Update()
{
DB_Helper.Query_Update(textBox1.Text, textBox2.Text);
}
private void DB_Insert()
{
DB_Helper.Query_Insert(textBox1.Text, textBox2.Text);
}
private void DB_Select()
{
DB_Helper.Query_Select();
dataGridView1.DataSource = DB_Helper.ds;
dataGridView1.DataMember = "TB_CUST";
}
public Form1()
{
InitializeComponent();
dh = new DB_Helper().getInstance();
}
