tacojoosterkamp
asked on
Use Reflection to determine if a property is System.Nullable<System.DateTime>
Hi,
I'm trying to use reflection to copy some Request.QueryString[] values into a Linq2SQL object. This I do by iterating through the properties of the Linq Object and then checking if there is a QueryString available for that property.
However, these properties have different kind of types and I need to convert the QueryString data to the appropriate type before I can store it in the properties of the Linq Object.
This seems to work well:
Type propertyType = propertyInfo.GetType();
if (propertyType == typeof(Int32))
{
// do some intelligent stuff here
}
But the following one does not work if the column is marked as Nullable:
if (propertyType == typeof(System.Nullable<Sys
{
// do some intelligent stuff here
}
Any suggestions as to how to fix this?
Taco
I'm trying to use reflection to copy some Request.QueryString[] values into a Linq2SQL object. This I do by iterating through the properties of the Linq Object and then checking if there is a QueryString available for that property.
However, these properties have different kind of types and I need to convert the QueryString data to the appropriate type before I can store it in the properties of the Linq Object.
This seems to work well:
Type propertyType = propertyInfo.GetType();
if (propertyType == typeof(Int32))
{
// do some intelligent stuff here
}
But the following one does not work if the column is marked as Nullable:
if (propertyType == typeof(System.Nullable<Sys
{
// do some intelligent stuff here
}
Any suggestions as to how to fix this?
Taco
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Nullable<DateTime> val = DateTime.Now;
or
DateTime ? val = DateTime.Now;
and check its type u get "DateTime"
check this code snippet:
Nullable<DateTime> val = DateTime.Now;
Type t = val.GetType();
bool equal = (t == typeof(DateTime));
equal is always true...