Stark getippte Windows Forms Datenbank ⇐ C#

[Anonymous]

Ich suche mithilfe von Erweiterungsmethoden in stark typisierte Windows Forms -Datenbank. Ich habe so weit folgt von Xavier wie unten gefolgt: < /p>
using System;
using System.Linq.Expressions;
using System.Windows.Forms;

namespace WindowsFormsApplication1
{
public static Binding Add
(this ControlBindingsCollection dataBindings,
object dataSource,
Expression controlExpression,
Expression objectExpression)
{
return Add(dataBindings, dataSource, controlExpression, objectExpression, false);
}

public static Binding Add
(this ControlBindingsCollection dataBindings,
object dataSource,
Expression controlExpression,
Expression objectExpression,
bool formattingEnabled)
{
string controlPropertyName = ProcessExpression(controlExpression.Body);
string bindingTargetName = ProcessExpression(objectExpression.Body);

return dataBindings
.Add(controlPropertyName, dataSource, bindingTargetName, formattingEnabled);
}

public static Binding Add
(this ControlBindingsCollection dataBindings,
object dataSource,
Expression controlExpression,
Expression objectExpression)
{
return Add(dataBindings, dataSource, controlExpression, objectExpression, false);
}

public static Binding Add
(this ControlBindingsCollection dataBindings,
object dataSource,
Expression controlExpression,
Expression objectExpression,
bool formattingEnabled
)
{
string controlPropertyName = ProcessExpression(controlExpression.Body);
string bindingTargetName = ProcessExpression(objectExpression.Body);

return dataBindings.Add(controlPropertyName, dataSource, bindingTargetName, formattingEnabled);
}

private static string ProcessExpression(Expression expression)
{
string propertyName;
if (expression is MemberExpression)
{
propertyName = ((MemberExpression) (expression)).Member.Name;
}
else if (expression is UnaryExpression)
{
propertyName = ((MemberExpression) ((UnaryExpression) (expression)).Operand).Member.Name;
}
else
{
throw new InvalidOperationException(
"Unknown expression type error in DataBindingsExtensionMethods.Add");
}
return propertyName;
}
}
< /code>
Jetzt kann ich eine Datenbank wie folgt einrichten: < /p>
txtBoundInt.DataBindings.Add
(bindingSource, tb => tb.Text, contact => contact.Id);
< /code>
Oder: < /p>
cboBoundSelectedItem.DataBindings.Add

(bindingSource, cbo => cbo.SelectedItem, con => con.ContactType)
< /code>
Es scheint jedoch eine Menge Ausdrücke zu geben. Gibt es einen besseren Weg?>