C#

<br />
string tempStr = "Input can not contain the characters: &,^,!";<br />
this.mainErrorProvider.SetError(this.inputTxtBox, tempStr);<br />

...



namespace Keystore

{

public partial class FindKey : Form

{

public FindKey()

{

InitializeComponent();

}



DataSet ds;

System.Data.SqlClient.SqlDataAdapter da;

DatabaseHelper dataHelper = new DatabaseHelper();

DataRow dRow;



private void FindKey_Load(object sender, EventArgs e)

{

string sql = "SELECT * FROM Key";

string name = "AllKeys";

da = dataHelper.getAdapter(sql, name);

ds = dataHelper.getDataSet();



refreshList(1);

fillcboProvider();

fillcboProduct();



}



...



...



namespace Keystore

{



class DatabaseHelper

{

System.Data.SqlClient.SqlConnection con;

DataSet ds;

System.Data.SqlClient.SqlDataAdapter da;



public DatabaseHelper()

{

con = new System.Data.SqlClient.SqlConnection();

con.ConnectionString = "Data Source=.\\SQLEXPRESS;AttachDbFilename=|DataDirectory|\\KeyStore.mdf;Integrated Security=True;User Instance=True";

ds = new DataSet();

}



public System.Data.SqlClient.SqlDataAdapter getAdapter(String sql, String name)

{

da = new System.Data.SqlClient.SqlDataAdapter(sql, con);

da.Fill(ds, name); *** Code 'finishes' the load after here ***

return da;

}



...