Hello,
I am trying to implement the following feature:
There are the edit text and push button text in the dialog. I want to have
the button disabled if the text field is empty but once end-users starts
entering the text, enable the button. if the text is edited and becomes
empty, disable the button again.
The code I use is:
* The custom action to check the text:
<CustomAction Id="CheckSerialVbs" Script="vbscript" Execute="immediate"
>
<![CDATA[
On Error Resume Next
Dim serial
serial = Session.Property("SERIALNUMBER")
If serial.Len=0 Then
Session.Property("SERIALVALID")="0"
Else
Session.Property("SERIALVALID")="1"
End If
]]>
</CustomAction>
* The edit control:
<Control Id="SerialEdit" Type="Edit" X="15" Y="150" Width="220"
Height="16" Property="SERIALNUMBER" Text="{20}">
<Publish Event="DoAction" Value="CheckSerialVbs">1</Publish>
</Control>
* The button:
<Control Id="Next" Type="PushButton" X="220" Y="250" Width="56"
Height="17" Text="Next">
<Condition Action="disable"><![CDATA[SERIALVALID<>"1"]]></Condition>
<Condition Action="enable">SERIALVALID="1"</Condition>
</Control>
However, this doesn't work - the button state is changed, but only if I
leave the SerialEdit field.
If I insert line MsgBox "CheckSerial call" in the custom action script then
it shows the message box every time when I type something in SerialEdit
field, leave the field or focus it. This proves that custom action is
executed properly according to my needs. However, the button state isn't
changed properly.
Can anyone help me and point to my mistake with the described approach?
Thanks in advance...
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