Check full article : How to set value of a property using Reflection?
full code if you are setting value for nullable type
public static void SetValue(object inputObject, string propertyName, object propertyVal)
{
//find out the type
Type type = inputObject.GetType();
//get the property information based on the type
System.Reflection.PropertyInfo propertyInfo = type.GetProperty(propertyName);
//find the property type
Type propertyType = propertyInfo.PropertyType;
//Convert.ChangeType does not handle conversion to nullable types
//if the property type is nullable, we need to get the underlying type of the property
var targetType = IsNullableType(propertyType) ? Nullable.GetUnderlyingType(propertyType) : propertyType;
//Returns an System.Object with the specified System.Type and whose value is
//equivalent to the specified object.
propertyVal = Convert.ChangeType(propertyVal, targetType);
//Set the value of the property
propertyInfo.SetValue(inputObject, propertyVal, null);
}
private static bool IsNullableType(Type type)
{
return type.IsGenericType && type.GetGenericTypeDefinition().Equals(typeof(Nullable<>));
}
you need to convert value like this i.e you need to convert value to your property type like as below
PropertyInfo info = t.GetProperty("Value");
object value = null;
try
{
value = System.Convert.ChangeType(123,
Nullable.GetUnderlyingType(info.PropertyType));
}
catch (InvalidCastException)
{
return;
}
propertyInfo.SetValue(obj, value, null);
you need to do this because you cannot convert any arbirtary value to given type...so you need to convert it like this
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