possible way to disable controls at runtime? - wix

Question

Is there a way to disable UI controls while I'm doing some actions like checking database availability? Now it's like this:
<Control Id="Next" Type="PushButton">
<Publish Event="DoAction" Value="CheckDBConnection" Order="3">
<![CDATA[SQL_SERVER <> "" AND SQL_USER <> "" AND SQL_PASSWORD <> ""]]>
</Publish>
<Publish Event="DoAction" Value="Confirm_OverwriteDatabase" Order="2"/>
<Publish Event="NewDialog" Value="VerifyReadyDlg" Order="1"/>
</Control>
When CheckDBConnection is executing, all controls are alive, but doesn't do anything. It will be more accurate to disable them while performing background action.

Answer 1

Use Conditions with enable\disable Actions, based on the desired properties:
<Control Id="{Id}" Type="{Type}">
<Condition Action="enable" ><![CDATA[SOMEPROPERTY = SomeValue]]></Condition>
<Condition Action="disable"><![CDATA[SOMEPROPERTY <> SomeValue]]></Condition>
</Control>

Answer 2

Thanks to #vitaliy-zadorozhnyy, I was able to come up with an extra weird code that I dont't understand myself. But it works.
...
...
<Property Id="DBCHECK_INPROGRESS" Value="0" />
<Property Id="DBCHECK_NOTINPROGRESS" Value="0" />
...
...
<Control Id="{Id}" Type="{Type}">
<Condition Action="enable"><![CDATA[DBCHECK_INPROGRESS <> 1]]></Condition>
<Condition Action="disable"><![CDATA[DBCHECK_INPROGRESS = 1]]></Condition>
</Control>
{insert those conditions for any control you want to disable during action}
...
...
<Control Id="Next" Type="PushButton">
<Condition Action="enable"><![CDATA[DBCHECK_INPROGRESS <> 1]]></Condition>
<Condition Action="disable"><![CDATA[DBCHECK_INPROGRESS = 1]]></Condition>
<Publish Event="DoAction" Value="SetInProgress">1</Publish>
<Publish Property="TEMP_INPROGRESS" Value="[DBCHECK_INPROGRESS]">1</Publish>
<Publish Property="DBCHECK_INPROGRESS" Value="[TEMP_INPROGRESS]" />
<Publish Event="DoAction" Value="CheckDBConnection"/>
<Publish Event="DoAction" Value="SetNotInProgress">1</Publish>
<Publish Property="TEMP_NOTINPROGRESS" Value="[DBCHECK_NOTINPROGRESS]">1</Publish>
<Publish Property="DBCHECK_NOTINPROGRESS" Value="[TEMP_NOTINPROGRESS]" />
{other events}
</Control>
and custom actions (JScript) are simple:
function SetInProgress_CA() {
Session.Property("DBCHECK_INPROGRESS") = "1";
}
function SetNotInProgress_CA() {
Session.Property("DBCHECK_INPROGRESS") = "0";
}