Get class from string in asp net c# using Reflection

Assembly assembly = Assembly.Load("AssemblyName.ClassName");
Class class = (Class)assembly.CreateInstance("AssemblyName.ClassName", true);

asp net c# Get executing assembly name

// Full-name, e.g. MyApplication, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null
string exeAssembly = Assembly.GetEntryAssembly().FullName;
 
// or just the "assembly name" part (e.g. "MyApplication")
string exeAssemblyName = Assembly.GetEntryAssembly().GetName().Name;