protected virtual void AddClicked(object sender, EventArgs e)
{
UniqueConstraintSchema uni = schemaProvider.CreateUniqueConstraintSchema(string.Concat(table.Name,
"_",
"uni_new"));
int index = 1;
while (constraints.Contains(uni.Name))
{
uni.Name = string.Concat(table.Name, "_", "uni_new", (index++).ToString());
}
constraints.Add(uni);
AddConstraint(uni);
EmitContentChanged();
}