C# Type to Generic class

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Hi All,

I have a project in MVC C# code-first.I want to pass type to my method.And my method needs to class to work.But I don't want to pass class I want dynamic.I don't know is it possible or not?

Here is my codes;

C#

strimg item ="PERSON" // item is a parametric I give the table name to get the type of table 
Assembly asm = Assembly.Load("ProjectName");
Type entityType = asm.GetType(String.Format("NameSpace.Model.{0}", item));

 var test = LINQDynamic<>.GetQueryResult(ssa,entityType,ddd); // In LINQDynamic<> I want to use entityType like that LINQDynamic<entityType> but it's not acceptable what can I make the convert type to generic?..Because table name is parametric.Is it possible to convert that type?

C#

public class LINQDynamic<TEntity> where TEntity: class
       {
           
           public static object GetQueryResult(object pkKey,Type type, params object[] pkKeys)
           {

                         //TODO
}

Posted 6-Oct-15 20:19pm

bora1891

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Duncan Edwards Jones · Answer 1 · 2015-10-06T20:37:00

Solution 1

You want type to be of TEntity?

C#

public class LINQDynamic<TEntity> where TEntity: class
       {

           public static TEntity GetQueryResult(object pkKey,TEntity type, params object[] pkKeys)
           {

                         //TODO
}

or a different known type?

C#

public class LINQDynamic<TEntity> where TEntity: class
       {

           public static TOther GetQueryResult<TOther>(object pkKey,Tother type, params object[] pkKeys)
           {

                         //TODO
}

Posted 6-Oct-15 20:37pm

Duncan Edwards Jones

Updated 6-Oct-15 23:45pm

v2

Comments

bora1891 7-Oct-15 2:45am

My problem is here;
var test = LINQDynamic<-?->.GetQueryResult();

which is the question mark.I want to pass my Type which is entityTpe.Is there a way to pass my entityType variable?

Duncan Edwards Jones 7-Oct-15 5:05am

If the type manager can't derive it (like here where you have no explicit parameters of TEntity) you can explicitly state it. e.g. to get a guery result of Customer:-

var test = LINQDynamic<customer>.GetQueryResult();

You should also make the return type of GetQueryResult be TEntity rather than object.

public class LINQDynamic<tentity> where TEntity: class
{

public static TEntity GetQueryResult(object pkKey,TEntity type, params object[] pkKeys)
{

//TODO
}

bora1891 7-Oct-15 8:48am

Thank you for reply.
But I think I cannot get the "Class" name. If i get the class name (like when i write the class name statistically as an input) this part will work:
public class LINQDynamic<-TEntity-> where TEntity: class
{

public static object GetQueryResult(object pkKey,Type type, params object[] pkKeys)
{
//TODO
}

So I am even not sure that I can get the class name from table type.And maybe I make some conversition type to real class but I don't know how to make and I'm notsure this is possible becasue my entityType is dynamic.
The LINQDynamic, wait a class.