Disable a button based on a dropdown value & dropdown on change event

(1) Share

Report

Posted on by CH-11102210-0

Hello PowerApps Community

I'd like to disable a button based on the value of a dropdown. The dropdown (drpdProperty_Type)

is fed by a table PropertyTable

I have the button's DisplayMode property connected to a formula:

If(drpdProperty_Type.Selected.Property_Type = "Select......" || varOCPropType = "Select......", DisplayMode.Disabled,DisplayMode.Edit)
 
I have a variable varOCPropType connected to the On Change property of drpdProperty_Type as Set(varOCPropType,drpdProperty_Type.Selected.Property_Type) which evaluates to a text datatype, as does drpdProperty_Type.Selected.Property_Type = "Select......"
 
The drpdProperty_Type items are set to PropertyTable.
 
When I inspect button DisplayMode,  the IF expression still evaluates to false even when datatype text values are the same and I'm expecting the expression to be evaluated as true.
 
Could you please tell me why this doesn't evaluate to true?

Categories:

Power Apps component framework

Power Platform Build Tools

All responses (2)

Answers (1)

CH-11102210-0 6 on at

Like (1)

Report
Disable a button based on a dropdown value & dropdown on change event

Thank you so much WarrenBelz!

As another test, I created another dropdown with more simple items:

["Item 1", "Item 2", "Item 3"] and the disabled mode evaluated as true.

This tells me my values from the dropdown are at fault, so I'll need to revisit those.

Len(ComboBox.Selected.Property_Type) = 0
makes perfect sense and seems much more robust. I will give it try! Cheers!
Verified answer

WarrenBelz 148,556 Most Valuable Professional on at

Like (3)

Report
Disable a button based on a dropdown value & dropdown on change event

Hi CH-11102210-0

Firstly Modern Controls are still in Preview and really should not be used in Production apps. I notice that nothing is selected in your screenshot, so you would need to make the DefaultSelectedItems
{Value: "Select......"}

If you had a Classic Combo Box, you could set the InputTextPlaceHolder to "Select......" and then
If( Len(ComboBox.Selected.Property_Type) = 0, DisplayMode,Disabled, DisplayMode.Edit )

Please click Does this answer your question if my post helped you solve your issue. This will help others find it more readily. It also closes the item. If the content was useful in other ways, please consider giving it a Like.
MVP (Business Applications) Visit my blog Practical Power Apps Buy me a coffee