Grid rows disappear when adding rows with PageSize set

[R Brian Lindahl]

If I add a row to a grid when (a) PageSize is set and (b) the current grid page is full, a row that should be displayed in the grid disappears to make room for the "add new" row. If I add another row, yet another row disappears, until I'm left with a seemingly empty grid. I would expect the "add new" row to appear without removing a row from the grid, even though this would temporarily show more rows in the grid than the PageSize setting. I've attached a video demonstrating the problem.

Attachment: custscroll_92ddcc15.zip

[R Brian Lindahl]

Also, once the grid is "empty", the add new row doesn't show up at all. I have to switch pages to be able to add more items.

[Prasanna Kumar Viswanathan]

Hi Brian, 

Thanks for contacting Syncfusion support. 

In grid when we set allowPaging as true, it will set pageSize as 12 by default or we can set the pageSize in pageSettings. While adding new record in the current page the last record will be moved to the next page when it exceeds the pageSize. 

We checked your video demonstration and before proceed with this query, share the following details. 

1. In video we found that the newly added record is not saved. So, we suspect that the script has been thrown while saving the newly added record. If any error thrown in the console, please share the stackrace of an issue.  

2. Are you using any adaptors like URL or remoteSave in grid?  

3. Code example of a Grid.  

3. Essential Studio Version details.  

Regards, 

Prasanna Kumar N.S.V 

[R Brian Lindahl]

1. The records are saved, they're just not visible on the first page of the grid.
2. Adaptor is UrlAdaptor.
3. Sample code is attached.
4. Version is latest, 2016 release 4.

VS info is:

Microsoft Visual Studio Enterprise 2015
Version 14.0.25431.01 Update 3
Microsoft .NET Framework
Version 4.6.01586

Installed Version: Enterprise

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Attachment: WebApplication12_97e7435b.zip

[R Brian Lindahl]

Also, I've noticed in my main app that it doesn't depend on PageSize being set - the default page size does the same thing.

[Seeni Sakthi Kumar Seeni Raj]

Hi Brian, 

 

By default, the newly added records in the Grid will be added to the dataSource in certain order. The same order has been retrieved from the server as a result of the Read or POST request. For instance, if a record is saved at some index in the server database which has been retrieved in the same order while requesting for them for the current page. If the current page of the Grid only holds 0 to 11 index and the data saved at the 15^th index, then the current page will not populate the newly added records which is the default behavior.  

 

Regards, 

Seeni Sakthi Kumar S. 

[R Brian Lindahl]

I understand that... the problem is that, when the records are added to a different page, the current page doesn't go back to the proper number of rows.

* when I click add, the grid shows the new row, and removes one row from the grid to make room for it.
* on update, if the row is on the current page, it shows up and the page is again full.
* if the row isn't on the current page, the page stays 1 row short. However, the grid still thinks that it's full, and further adds will continue to reduce the number of rows shown on the grid.