C# Copy the Permissions from one list to another list in SharePoint

Today I have got a requirement to copy the permission from existing list and Create a new list with the permissions inherited from existing list programmatically.

Here is code which is very simple will make you better understanding .

using (SPSite spSite = new SPSite("http://servername:Portnumber/"))
{
using (SPWeb spWeb = spSite.OpenWeb())
{
SPList spList = spWeb.Lists["AgeRating"];

//Get all roles from the existing list
SPRoleAssignmentCollection coll = spList.RoleAssignments;

SPListCollection lists = spWeb.Lists;

// create new Generic list called "MyList"

if (!spWeb.Lists.Cast().Any(list => string.Equals(list.Title, "MyList")))
{
spWeb.AllowUnsafeUpdates = true;
lists.Add("MyList", "My list Description", SPListTemplateType.GenericList);
spWeb.AllowUnsafeUpdates = false;
}

SPList targetList = spWeb.Lists["MyList"];
foreach (SPRoleAssignment role in coll)
{
targetList.BreakRoleInheritance(false);
spWeb.AllowUnsafeUpdates = true;
targetList.RoleAssignments.Add(role);
}

spWeb.AllowUnsafeUpdates = false;
}
}