public static void ObjectNotNull(Expression <Func <object> > propertyExpression)
{
var func = propertyExpression.Compile();
var obj = func();
if (obj == null)
{
var propertyName = ExpressionHandler.GetPropertyName(propertyExpression);
throw new ArgumentException($"Object {propertyName} must not be null.");
}
}
public static void StringNotNullorEmpty(Expression <Func <string> > propertyExpression)
{
var func = propertyExpression.Compile();
var stringValue = func();
if (string.IsNullOrEmpty(stringValue))
{
var propertyName = ExpressionHandler.GetPropertyName(propertyExpression);
throw new ArgumentException($"String {propertyName} must not be null or empty.");
}
}
public static void StringNotNullOrEmpty(Expression <Func <string> > propertyExpression)
{
var func = propertyExpression.Compile();
var stringValue = func();
if (!string.IsNullOrEmpty(stringValue))
{
return;
}
var propertyName = ExpressionHandler.GetPropertyName(propertyExpression);
var exceptionMessage = string.Format(StringNullOrEmptyExceptionMessage, propertyName);
throw new ArgumentException(exceptionMessage);
}
public static void ObjectNotNull(Expression <Func <object> > propertyExpression)
{
var func = propertyExpression.Compile();
var obj = func();
if (obj != null)
{
return;
}
var propertyName = ExpressionHandler.GetPropertyName(propertyExpression);
var exceptionMessage = string.Format(NullObjectExceptionMessage, propertyName);
throw new ArgumentException(exceptionMessage);
}