public static string CreateGroup(String GroupName)
{
string group_title = GroupName;
if (!Regex.IsMatch(group_title, @"^[a-zA-Z]+$") || group_title.Length < 4 || !UniquieGroup(group_title))
{
return("no match format");
}
using (chatEntities context = new chatEntities())
{
group groups = new group
{
title = group_title,
};
context.groups.Add(groups);
context.SaveChanges();
}
return("added succesfully");
}