How To Reset Paging info ?

RE: How To Reset Paging info ?

Peter Lewis — Fri, 25 Feb 2022 13:23:30 GMT

Can you also confirm which version of Appian you are using? In general 19.2 and later it is usually not necessary to manage paging outside of the grid at all, which could simplify your UI. For example, here's a sample expression for a grid that contains a filter above it: docs.appian.com/.../recipe-filter-the-data-in-a-grid.html

RE: How To Reset Paging info ?

GopalK — Fri, 25 Feb 2022 07:31:58 GMT

It would be easier for us to find out the issue if you could paste the code here. You need to make sure you have data in your local variable and total count is not 0.

RE: How To Reset Paging info ?

minhajk0002 — Fri, 25 Feb 2022 07:28:33 GMT

Hi after applying null check in grid, it is showing same error

RE: How To Reset Paging info ?

marcusmoo — Thu, 24 Feb 2022 09:32:07 GMT

Total count is 0 means you're not fetching any data. If possible you can show your a!queryEntity codes as well.

local!pagingInfo: a!pagingInfo(
startIndex: 1,
batchSize: 5,
sort: a!sortInfo(field: "Id", ascending: false())
)

At the pagingInfo parameter, if you were to call local!pagingInfo. It will work if data is there.

Further insights, if you are using a later version of appian with a!localVariables

local!pagingInfo:
a!refreshVariable(
value: a!pagingInfo(
startIndex: 1,
batchSize: 5,
sort: a!sortInfo(field: "Id", ascending: false())
),
refreshOnReferencedVarChange: false()
)

RE: How To Reset Paging info ?

Richard Michaelis — Thu, 24 Feb 2022 08:43:16 GMT

like i mentioned before ;)
the issue is not the paginginfo. its your data. You grid has no data as totalcount is 0
so check why you query rule (or whatever you are using to get the data) is giving you no valid result.

RE: How To Reset Paging info ?

GopalK — Thu, 24 Feb 2022 07:46:04 GMT

you are getting total count is 0 . It means you dont have data to be fed into the grid. So you have to apply null check . you would need to pass data into the grid only if its not null. So just make sure your data does not have null , otherwise you will get this error

RE: How To Reset Paging info ?

minhajk0002 — Thu, 24 Feb 2022 07:42:21 GMT

I tried the above solution but getting same error

Interface Definition: Expression evaluation error at function a!gridField [line 186]: A grid component [label="Search results"] has an invalid value for "value" and "totalCount". "startIndex" must not be greater than "totalCount", but "startIndex" was 6 and "totalCount" was 0.

RE: How To Reset Paging info ?

GopalK — Thu, 24 Feb 2022 07:28:48 GMT

Hi, Try to do something like below, this way , everytime you select anything from dropdown, your local!pagingInfo variable will refresh,

a!localVariables(
  
  local!pagingInfo:a!pagingInfo(
    startIndex: 1,
    batchSize: 5,
    sort: a!sortInfo(field: "Id", ascending: false())
  ),
  a!dropdownField(
    label: "Dropdown",
    saveInto: {
      a!save(
        local!pagingInfo,
        a!pagingInfo(
          startIndex: 1,
          batchSize: 5,
          sort: a!sortInfo(field: "Id", ascending: false())
        )
      )
    }
  )
)

RE: How To Reset Paging info ?

minhajk0002 — Thu, 24 Feb 2022 07:23:39 GMT

for Paging I am using localvarialble to save

RE: How To Reset Paging info ?

minhajk0002 — Thu, 24 Feb 2022 07:23:06 GMT

No, I try to reset the paging based on drop down

RE: How To Reset Paging info ?

GopalK — Thu, 24 Feb 2022 07:21:18 GMT

Are you trying to save pagingInfo in your dropdown's save into?

RE: How To Reset Paging info ?

minhajk0002 — Thu, 24 Feb 2022 07:19:01 GMT

my requirement is if I select any thing from DropDown I am getting result and able to display in grid,

like the If I select another value from drop down I am able to reset everything but paging not getting reset and for that reason I am getting error

Interface Definition: Expression evaluation error at function a!gridField [line 185]: A grid component [label="Search results"] has an invalid value for "value" and "totalCount". "startIndex" must not be greater than "totalCount", but "startIndex" was 6 and "totalCount" was 0.

RE: How To Reset Paging info ?

minhajk0002 — Thu, 24 Feb 2022 07:14:02 GMT

I can't insert code due to some restriction

RE: How To Reset Paging info ?

Richard Michaelis — Thu, 24 Feb 2022 06:16:36 GMT

I think you issue looks like more that the paginginfo is in general working. its complaining that you have "no data" (Total Count is 0) and you try to start at the 11th item in your data(array). that doesn't fit.
Can You insert your code via "Insert" (below the writing box)- "insert code" function ?

RE: How To Reset Paging info ?

GopalK — Thu, 24 Feb 2022 06:03:04 GMT

Try to use fv!pagingInfo instead local variable.Please go through below link ,

docs.appian.com/.../read-only-grid-configuration.html

RE: How To Reset Paging info ?

minhajk0002 — Thu, 24 Feb 2022 05:59:08 GMT

I have configure value parameter for the grid, problem is I am using Local Variable to save the paging info like

local!groupWorkPagingInfo: a!pagingInfo(
startIndex: 1,
batchSize: 5,
sort: a!sortInfo(field: "Id", ascending: false())
)

I want to refresh/reset the paging when the value is blank in text field

RE: How To Reset Paging info ?

GopalK — Thu, 24 Feb 2022 05:52:01 GMT

Hi , can you share your code. I think you did not configure value parameter for the grid, also pagination is not working