Even though I have my issues with Infragistics WebHierarchicalDataGrid control, it has some neat features and I found that with some tweaks you can make it work. Case in point: Manual Load on Demand. If you have hierarchical data structure, it allows you to retrieve only root level data and then when user clicks “Expand” […]
I had high hopes for Infragistics Web Hierarchical Data Grid control. Especially in NetAdvantage 10.3 release (current as of this post). Control from Aikido Framework, build on AJAX from ground up, lightweight and fast – I was really excited. Unfortunately it didn’t turned out exactly as I expected. First – WHDG cannot bind to a […]
Nested controls aren’t available in ASP.NET Page PreInit event. Learn how to make them available – even when no Master Page is involved.
WebHierarchicalDataGrid grouping feature offers handy “Group By” area – a place where columns can be dragged to for grouping. It has one limitation though: by default it can be positioned only on top or the bottom of the grid. But what if you want to place it elsewhere? For example you have a dedicated navigation […]
If you work with Infragistics WebHierarchicalDataGrid and try to use its grouping features, you may notice that it uses grid column keys instead of column header’s captions to name items in “Group By” area. To work around this limitation, let’s take a look at how Grouped By area is rendered: Basically a container DIV holds […]
This post continues topic started in “WHDG: Correctly detect Async Callback“. Back then I described a way to correctly detect server-side when an infragistics control (WebHierarchicalDataGrid) issues an async callback. But what if you need to detect actual type of the call and distinguish paging from sorting from filtering from row expanding? Well, where there […]
When using Infragistics WebHierarchicalDataGrid often there’s a need to detect grid’s async callback (for example we need to rebind the grid if it performs AJAX paging or expanding children). For flat WebDataGrid it was suggested to use grid’s RunBot.IsCallback property: Now, WHDG also has RunBot.IsCallback property, but the above code always returns False for it. […]
I’ve been successfully using manual load on demand in WebHierarchicalDataGrid for a while now, but recently noticed strange thing. The deeper in grid’s hierarchy I expanded the children – the slower it went. In my case every time user clicks [+] to expand a row, VB.NET code calls an SQL Server Stored procedure to bring […]
While working with Infragistics WebDataGrid/WebHierarchicalDataGrid I noticed a strange thing: column’s HtmlEncode property (which should control whether HTML value of grid’s cell is rendered as HTML or shown as is in raw tags) had no effect. Maybe I was doing something wrong, maybe it was the fact that grid columns were generated in server-side code […]
Ever wished your WebDataGrid could have Table Layout = Auto like old UltraWebGrid? Then it could automatically resize columns width to data width with respect line breaks. Well, it can, and in style (pan intended). Thanks to Infragistics tech-support for starting me in the right direction – here’s first 2 steps that need to be […]