Use control the contains of function
For example: whether in called panel3 picturebox control of dynamically add label (dynamically added when using LabelWorkCount (I) as a deposit label information array)
Is to determine whether a label in the array exists available
Private LabelWorkCount (139), the As System. Windows. Forms. Label
For I=0 to LabelWorkCount. Length - 1
If panel3. The Contains (LabelWorkCount (I)) then
Msgbox (" exist ")
The else
Msgbox (" does not exist ")
End the if
next