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Setting value of a dropdown based on global variable

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Posted on by Smilee279

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Working on a canvas app with a SPList. The SPList has columns for data, one including a Location Choice column. The choices are Chicago or Atlanta (may include more sites later on).

Screen 1 has 2 buttons to select the location.

Button1 OnSelect property: Set(varSite, "Chicago")

Button2 OnSelect property: Set(varSite, "Atlanta")

Screen 2 has the form, including the datacard for the site. For the dropdown's Default property I put in the following:
LookUp(Choices(SPList.Location),Value=varSite) (i've also tried Text = varSite which doesn't work)

For the DataCard's Update property, I put in the same thing.

This does not save the information. If I add a .Value at the end of the Default and Update properties, I get this error:

I was using this solution to help--which looked like it would, but it is not saving the data. I've tried patching the variable as well, which isn't working. I'm out of ideas on how to have it default to the global variable's data as the selection for the drop-down. Help!

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Building Power Apps

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shoog 2,164 on at

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Do you want to be able to modify the value using the dorpdown or is that just informational?

Right now you are updating with the same value as the default.

If you want to update with the selected value, you should modify the update property to

DataCardValue1.Selected

* replace the 1 with the right value of the datacardvalue under the datacard you are trying to update.

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Smilee279 135 on at

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@shoog that may 100% work...but the data from the global variable isn't passing into the default for the drop-down. I'm sure once that's populating correctly, the update property should work.

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shoog 2,164 on at

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What is the Items property of the dropdown?

It should be something like Choices([@SPlist].Location)

Did you set the Default at the datacard level or explicitly in the dropdown? The common way is to set it at the datacard and keep the dropdown DefaultSelectedItems set to Parent.Default

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Smilee279 135 on at

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I moved the lookup LookUp(Choices(SPList.Location),Value=varSite) to the Default at the datacard and set the DefaultSelectedItems to Parent.Default.

Thank you!!

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CVR 3 on at

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In my case, I have needed to make a little adjust in the expression to Default property as follow: LookUp(Choices(SPList.Location),Value in varSite). After that, it worked perfectly.

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