source.cpp

#using <System.dll>
#using <System.Drawing.dll>
#using <System.Data.dll>
#using <System.Windows.Forms.dll>
#using <System.Xml.dll>

usingnamespaceSystem;
usingnamespaceSystem::Data;
usingnamespaceSystem::Windows::Forms;
usingnamespaceSystem::Globalization;

public ref classForm1: publicForm
{
protected:
 TextBox^ text1;

// <Snippet1>
private:
voidBindTextBoxControl()
 {
 DataSet^ myDataSet = gcnew DataSet;
/* Insert code to populate the DataSet with tables, 
 columns, and data. */

// Creates a new Binding object. 
 Binding^ myBinding = gcnew Binding(
"Text",myDataSet,"customers.custToOrders.OrderAmount" );

// Adds event delegates for the Parse and Format events.
 myBinding->Parse += gcnew ConvertEventHandler( this, &Form1::CurrencyToDecimal );
 myBinding->Format += gcnew ConvertEventHandler( this, &Form1::DecimalToCurrency );

// Adds the new Binding to the BindingsCollection.
 text1->DataBindings->Add( myBinding );
 }

voidDecimalToCurrency( Object^ /*sender*/, ConvertEventArgs^ cevent )
 {
/* This method is the Format event handler. Whenever the 
 control displays a new value, the value is converted from 
 its native Decimal type to a string. The ToString method 
 then formats the value as a Currency, by using the 
 formatting character "c". */
 cevent->Value = safe_cast<Decimal ^>(cevent->Value)->ToString( "c" );
 }

voidCurrencyToDecimal( Object^ /*sender*/, ConvertEventArgs^ cevent )
 {
/* This method is the Parse event handler. The Parse event 
 occurs whenever the displayed value changes. The static 
 Parse method of the Decimal structure converts the 
 string back to its native Decimal type. */
 cevent->Value = Decimal::Parse( cevent->Value->ToString(),
 NumberStyles::Currency, nullptr );
 }
// </Snippet1>
};