Type.GetType()

// .net code 

private Type GetType(string className) 
{ 
    // Creates current domain. 
    AppDomain currentDomain = AppDomain.CurrentDomain; 

    // Makes an array for the list of assemblies. 
    Assembly[] assems = currentDomain.GetAssemblies(); 

    Type type = null; 
    for (int j = 0; j < assems.Length; j++) 
    { 
        Type[] types = assems[j].GetTypes(); 
        for (int k = 0; k < types.Length; k++) 
        { 
            if (types[k].Name.Equals(className) || (types[k].FullName.Equals(className))) 
            { 
                type = types[k]; 
                break; 
            } 
        } 
        if (type != null) 
        { 
            break; 
        } 
    } 

    return type; 
}