In the development it is always require to sort grids that has dynamic data source. Here is the code to sort with any property of object that is generic type.
/* Pass object to sort */
public static List<T> DynamicSort<T>(List<T> genericList, string sortExpression, string
sortDirection)
{
if (genericList != null)
{
int sortReverser =
sortDirection.ToLower().StartsWith("asc")
? 1 : -1;
Comparison<T>
comparisonDelegate =
new Comparison<T>(delegate(T x, T y)
{
MethodInfo
compareToMethod = GetCompareToMethod<T>(x, sortExpression);
object xSortExpressionValue =
x.GetType().GetProperty(sortExpression).GetValue(x, null);
object ySortExpressionValue = y.GetType().GetProperty(sortExpression).GetValue(y,
null);
object result = compareToMethod.Invoke(xSortExpressionValue, new object[] {
ySortExpressionValue });
return sortReverser * Convert.ToInt16(result);
});
genericList.Sort(comparisonDelegate);
}
return genericList;
}
/* Get compare to method */
public static MethodInfo GetCompareToMethod<T>(T
genericInstance, string sortExpression)
{
Type genericType = genericInstance.GetType();
object sortExpressionValue =
genericType.GetProperty(sortExpression).GetValue(genericInstance, null);
Type sortExpressionType =
sortExpressionValue.GetType();
MethodInfo compareToMethodOfSortExpressionType =
sortExpressionType.GetMethod("CompareTo",
new Type[] {
sortExpressionType });
return compareToMethodOfSortExpressionType;
}
