Forum Discussion

abrar22's avatar
abrar22
Frequent Contributor
9 years ago

Wait for Element until its exists

Hi,    Is there any specific method which I can use to wait until a certain element exists or loads up only then it goes to next step. As currently I am using .Delay() method which can fail if elem...
djadhav's avatar
djadhav
Regular Contributor

I have found best results using WaitChild or WaitAliasChild(if you use NameMapping Aliases).

Directly checking Exists on an object throws an error while Delay() will always add fixed additonal time to the script while running.

 

WaitChild over comes both of these issues.

 

Here is more information on WaitChild: https://support.smartbear.com/viewarticle/72783/

NisHera's avatar
NisHera
Valued Contributor
9 years ago

 

Also be aware that even though some objects exists may not visible
in which case TC coulc not use or operate the object
It is usefull in some case check visible or VisibleOnScreen is true
along with Exists see this

  • abrar22's avatar
    abrar22
    Frequent Contributor
    9 years ago

    Hi,

     

    Thanks for you replies.


    So I have WBtn_ABC in ny Name mapping (Aliases.Product.TransitionBox.PriceTicker.WBtn_ABC)

     

    Can i just use 

     

    (WBtn_ABC.Exists &&WBtn_ABC.VisibleOnScreen)

     

    ?

     

    Thanks

    A

    • djadhav's avatar
      djadhav
      Regular Contributor
      9 years ago

      If you do this

       

      (WBtn_ABC.Exists &&WBtn_ABC.VisibleOnScreen)

       

      WBtn_ABC.Exists can throw an error and stop the script if the object does not exist.

       

      I would do it this way:

       

      IF Aliases.Product.TransitionBox.PriceTicker.WaitAliasChild("WBtn_ABC", 10000).Exists THEN

        IF Aliases.Product.TransitionBox.PriceTicker.WBtn_ABC.VisibleOnScreen THEN

              'Do something because it is visible on screen

        END IF

ELSE

        Log.Error("The WBtn_ABC object does not exist")

END IF

      NOTE: The number 10000 means I would like to wait 10 seconds to check if the object exists. You can change it as required.

       

       

      • m_essaid's avatar
        m_essaid
        Valued Contributor
        9 years ago

        I have now plenty of functions that waits for an enabled state, or disabled, or exists, or not, etc etc

        I use a delay (ms) and a an passes (integer)

        at every passes, I wait for the delay time. and they I check the property. when the test returns true, stop, exit.

         

        function WaitForExists(Alias: AliasObj; Time, Passes: integer): boolean;
        var
        i: integer;
        begin
        result:= false;
        for i:= 0 to Passes do
        begin
        Delay(Time);

        // note : put wathever you want in this test :

        if (Alias.Exists) then
        begin
        result:= true;
        exit;
        end;
        end;
        end;