Login problem with button conditions

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Posted on by kashif18oc

Greetings,

My syntax is correct for button : on select statement but it only work for false condition but not true condition.

may be its not refreshing or what.

Please support

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Building Power Apps

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BCBuizer 22,833 Super User 2026 Season 1 on at

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Hi @kashif18oc ,

Use IsBlank instead of IsEmpty.

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mmollet 3,187 on at

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Seems like you are saying tho following with your logic:
If(UN/PW don't Match a row in SP List, navigate to screen, show invalid input error)
It seems to me that you would want these to be flipped. Try adding a ! right before IsBlank to make it not is blank like this !IsBlank(etc....

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kashif18oc 47 on at

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The issue is solved with the solution provided,
but
after going inside and coming back to the login page again, now even if i type the wrong password or leave blank still it goes inside.
what is it, is it holding in cache or what?

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mmollet 3,187 on at

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This is due to the logic I believe. The logic you gave is doing the following:
IsBlank(LookUp(TLESI_UserMasters, UserName = txtUserName_1.Text And Password = txtPassword_1.Text))
This will return true if it does not find a row that matches the 2 conditions. If it returns true then it will execute:
Navigate(pgMasterHome, ScreenTransition.Fade)
The issue, I think, is that you will return true any time the username and password DONT match as well. The lookup returns Blank() when it doesnt find a match which makes IsBlank be true which executes the navigate instead of the error message.

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Ethan_009 4,838 Moderator on at

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Hi @kashif18oc ,

Do you face the same issue if you use the following code when you click login?

With( { PasswordByList: LookUp(TLESI_UserMasteres, UserName = txtUserName_1.Text, ThisRecord.Password), PasswordEntered: txtPassword_1.Text }, If( IsBlank(PasswordByList), Notify("Enter UserName!", NotificationType.Warning, 1000), If( PasswordByList <> PasswordEntered, Notify("Invalid Username/Password!", NotificationType.Error, 1000), Navigate(pgMastersHome, ScreenTransition.Fade) ) ) )

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kashif18oc 47 on at

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Thanks a lot

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kashif18oc 47 on at

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this one also worked, Thanks

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