Hello,
I'm currently trying out igniteui grid and I'm trying to display a directory structure. I don't know how many levels there are in the directory structure.
My model contains the following objects:
public class Server{ public string ServerName { get; set; } public List<Directory> Directories { get; set; }}
public class Directory{ public string DirectoryName { get; set; } public List<Directory> Directories { get; set; }}
I'm using the following grid model:
var model = new Infragistics.Web.Mvc.GridModel();model.AutoGenerateColumns = false;model.Columns.Add(new GridColumn("Server Name", "ServerName", "string", "120px"));var directoriesLayout = new GridColumnLayoutModel{ Key = "Directories", AutoGenerateColumns = false,}directoriesLayout.Columns.Add(new GridColumn("Directory Name", "DirectoryName", "string", "800px"));directoriesLayout.ColumnLayouts.Add(directoriesLayout); ***HERE IS THE PROBLEM***model.ColumnLayouts.Add(directoriesLayout);
Unfortunately, the following exception occurs: An unhandled exception of type 'System.StackOverflowException' occurred in mscorlib.dll
I'm assuming that the grid has trouble with the recursive nature of the datasource. In WinGrid I was used to set the MaxBandDepth property to tell the grid how many bands should be loaded. But I cannot find a similar property in igGrid.
Please advice,
Michael
Hi Michael,
It seems like the line you have highlighted is causing an infinite loop and thus an exception is thrown. I would suggest you to try setting autoGeneratedLayouts to true and see if it works.
Please let me know if this helps.
Hi,
I'm just checking if you need any further assistance with the matter.
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Hey Nikolay,
Thanks for the reply.I'm not sure your solution helps me further. I know that the highlighted line is causing an infinite loop.
I would rather not enable autoGenerateLayouts because I like to control what is being displayed and what is not. In a situation where autoGenerateLayout is disabled, how would I display an "infinite" recursive datasource ? In WinGrid I was used to set the MaxbandDepth to tell the control how many levels should be displayed. That setting would stop the infinite loop. Is this feature available for igGrid and if not would I be able to make a feature request for the future ?
I have implemented a workaround in my application and it works now, so if there is no such feature in igGrid, you can help me make a feature request.
Thanks