Filter sharepoint list, don't show in gallery items with missing field

[Anonymous]

Hi 

I am stll working in my sign in app. I want the gallery to only show people who hasn't signed out yet. Which means I want it  to pull out only the names of people who'se field in the "SignOutTimeDate" is empty. I have a search text input and a sort button. What I have at the moment on the gallery which works is:

SortByColumns(Filter(Visitor_1, StartsWith(Title, TextInput1.Text)),"Title", If(SortDescending1, Descending, Ascending))

I am a noob with scripting and am looking for anyone who can help me refine this code so that it will onlys show items in the sharepoint list of people who hasn't signed out yet. 

Thanks!

[v-yamao-msft · Accepted solution]

Hi Chrom3d,

You could consider to combine IsBlank function with Filter function.

According to your scenario, you want to filter the name of people whose field in the SingnOutDateTime is empty.

On an app that is based on SharePoint list, set the Gallery’s item property as:

SortByColumns(Filter(ProjectEmail,IsBlank(Date)=true),"Title",If(SortDescending1,Descending,Ascending))

The all the items which date column is empty will be shown on the app.

About IsBlank function, please check the documentation at here:
https://powerapps.microsoft.com/en-us/tutorials/function-isblank-isempty/

Please to adjust the code according to your needs and let us know if you need more help.

Best regards,
Mabel Mao

[Anonymous]

Hi Mabel

I have no prior knowledge on coding and I have been pulling my hair out on this one but you just solved it with a simple line that actually makes sense! 

Thanks so much, that solved the issue for me! 

Chrom3d

[Anonymous]

Hi Mabel 

Just a quick question, me being not fluent in coding. The formula you gave which i tweaked worked really well to what I am trying to accomplish with just one hiccup. My original formula is tied up to a text input search box 

SortByColumns(Filter(Visitor_1, StartsWith(Title, TextInput1.Text)),"Title", If(SortDescending1, Descending, Ascending))

I tweaked your formula which worked perfectly

SortByColumns(Filter(Visitor_1,IsBlank(SignOutDateTime)=true),"Title",If(SortDescending1,Descending,Ascending))

But it does not incorporate the text input search box anymore, I know this might be something easy to do but I have no prior knowledge to coding and I am just learning at this stage and if you could help me out, I hope blessing rain on you!

[v-yamao-msft · Accepted solution]

Hi Chrom3d,

Please consider to use And function. About And function, please check the doc at here for more reference:
https://powerapps.microsoft.com/en-us/tutorials/function-logicals/

So according to your scenario, you could try to adjust your code looks like below:

SortByColumns(Filter(ProjectEmail,IsBlank(Date)=true&&StartsWith(Title,TextSearchBox1.Text)),"Title",If(SortDescending1,Ascending,Descending))

Hope this could be a reference for you.

Best regards,
Mabel Mao

[Anonymous]

Hi Mabel

I tried it and it worked! Thanks so much, saves me a lot of headache! 

I need to read more on the documentation and broaden my knowledge.

Kind regards

Andy

[Jimmy_King]

I have a similar issue to this I have the whole app working perfect but my leaving gallery shows all items rather than just the ones who haven't signed out, if this is a standard SharePoint list is there a string or command I could copy and paste and then just add the sharepoint list in, I am very new to this and would be great if I could finish this last bit

at the moment my Gallery is called LeavingGallery in Items  I have the sharepoint list attached called Visitors and this displays all the people who have signed in and out