private string CheckExistCollectionLink(string Str)
{
string result = string.Empty;
if (Str != null)
{
result = Str;
int stt = 0;
bool rs = false;
while (rs == false)
{
stt++;
if (!controller.CheckExistCollectionLink(ref rs, result))
{
result = string.Empty;
break;
}
if (!rs)
{
result = Str + "-" + stt;
}
}
}
return(result);
}