Creating a Calculator from Scratch in a PowerApps Example 

Error showing again

@@AltafKhan-mm4sz I tested it, have it working right now. Here is the equation I used. The only issue was the 2nd number was not using the Length and trying to calculate "5 +" it needed to remove the space and the " +" symbol. UpdateContext({varCalculate: varCalculate & varNumber}); Switch( varCalcType, "Plus", UpdateContext({varNumber: Text(Left(lblCalculate.Text,Len(lblCalculate.Text) - (Len(varNumber)+3)) + Value(lblNumber.Text))}), "Subtract", UpdateContext({varNumber: Text(Left(lblCalculate.Text,Len(lblCalculate.Text) - (Len(varNumber)+3)) - Value(lblNumber.Text))}), "Multiply", UpdateContext({varNumber: Text(Left(lblCalculate.Text,Len(lblCalculate.Text) - (Len(varNumber)+3)) * Value(lblNumber.Text))}), "Divide", UpdateContext({varNumber: Text(Left(lblCalculate.Text,Len(lblCalculate.Text) - (Len(varNumber)+3)) / Value(lblNumber.Text))}) ); UpdateContext({varToggle: true});

@@andrewhess123 thanks, error solved.

Please how to fix it? It is my first app and do not know what and where. Thank you :)

@@MartinaPokorna-b3r So, I believe you put that equation in the OnSelect property of the Equal Sign Button

Thank you Bajio!

Awesome, did you do it a different way?

So in mine, I stored the first and second arguments in separate variables. I like the approach with len, very nice.

@@kingsleyudeagha Looks really good! Very Impressive! Love it!

@@kingsleyudeagha Thanks for sharing!

That's a good question. There probably would need to be some sort of variable that changes true/false depending on if you hit another "number" button or not. If you don't hit a new "number" button it just does the previous calculation.

UpdateContext({varCalculate: varCalculate & varNumber}); Switch( varCalcType, "Plus", UpdateContext({varNumber: Text(Left(lblCalculate.Text,Len(lblCalculate.Text) - (Len(varNumber)+3)) + Value(lblNumber.Text))}), "Subtract", UpdateContext({varNumber: Text(Left(lblCalculate.Text,Len(lblCalculate.Text) - (Len(varNumber)+3)) - Value(lblNumber.Text))}), "Multiply", UpdateContext({varNumber: Text(Left(lblCalculate.Text,Len(lblCalculate.Text) - (Len(varNumber)+3)) * Value(lblNumber.Text))}), "Divide", UpdateContext({varNumber: Text(Left(lblCalculate.Text,Len(lblCalculate.Text) - (Len(varNumber)+3)) / Value(lblNumber.Text))}) ); UpdateContext({varToggle: true});

Needed to fix the equal equation

Another awesome question. I think it could be possible but no it's not set up that way yet.

@@andrewhess123 Thanks for your replay. I don't think so powerapps can analyse the key stroke from key board.. Can you please check once

Thank Gurpreet, there's a couple errors still but hopefully it get's a lot of the beginning steps fixed 😀

the same error

Here's a fix on the Equal Sign Formula UpdateContext({varCalculate: varCalculate & varNumber}); Switch( varCalcType, "Plus", UpdateContext({varNumber: Text(Left(lblCalculate.Text,Len(lblCalculate.Text) - (Len(varNumber)+3)) + Value(lblNumber.Text))}), "Subtract", UpdateContext({varNumber: Text(Left(lblCalculate.Text,Len(lblCalculate.Text) - (Len(varNumber)+3)) - Value(lblNumber.Text))}), "Multiply", UpdateContext({varNumber: Text(Left(lblCalculate.Text,Len(lblCalculate.Text) - (Len(varNumber)+3)) * Value(lblNumber.Text))}), "Divide", UpdateContext({varNumber: Text(Left(lblCalculate.Text,Len(lblCalculate.Text) - (Len(varNumber)+3)) / Value(lblNumber.Text))}) ); UpdateContext({varToggle: true});

@staralfa5959 you error is solved or not? because i face same problrm and i cant solve it. pls help me .

Thank you for watching Ron, awesome to know that this video helped.

Obrigado por assistir!!

Thanks, good idea! Duh, I should of known that! haha That would fix it too. Thanks Alexandre!

Would you be so kind and could you write here how it will be? I am a beginer so it would realy help. Tank you

What's the error? If you hover over, it can help you resolve the issue?

Good Point 😁 Yeah I was just seeing how fast I could create one, not that anyone should copy the exact example. There's def some things that could be done to fix the app to perfection.

Thanks for sharing Victor, You can always do the "real" coding part in Power Apps too, just use Power Apps Framework: learn.microsoft.com/en-us/power-apps/developer/component-framework/overview