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Michael Mangelschots
2732
Hierarchical recursive grid
posted

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