[Solved] FileExplorer stops working when visibility is toggled

[Jenna Schmidt]

Hi,

I am running into a problem with the FileExplorer. Here is how I have my page setup:

The FileExplorer is in a placeholder which starts with visible=true.
When a button on the page is clicked, the placeholder containing the FileExplorer is set to visible=false.
When another button on the page is clicked, the placeholder containing the fileexplorer is set back to visible=true

After the second button is clicked and the fileexplorer becomes visible again, it no longer works. No items load in the right pane. I copied the following code for the initialization of the fileexplorer on page_load from the demo located at http://demos.telerik.com/aspnet-ajax/fileexplorer/examples/default/defaultcs.aspx

Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)
            FileExplorer1.EnableViewState = False
            UpdateVisibleControls()
            FileExplorer1.EnableOpenFile = enableOpenFile.Checked
            FileExplorer1.DisplayUpFolderItem = displayUpFolder.Checked
            If Not enableUpload.Checked Then
                FileExplorer1.Configuration.UploadPaths = New String(0) {}
            End If
            FileExplorer1.InitialPath = Page.ResolveUrl("~/FileExplorer/Examples/Default/Images/Northwind/Flowers/")
        End Sub
        Protected Sub UpdateVisibleControls()
            Dim explorerControls As Telerik.Web.UI.FileExplorer.FileExplorerControls = 0
            If visibleControls.Items(0).Selected Then
                explorerControls = explorerControls Or Telerik.Web.UI.FileExplorer.FileExplorerControls.AddressBox
            End If
            If visibleControls.Items(1).Selected Then
                explorerControls = explorerControls Or Telerik.Web.UI.FileExplorer.FileExplorerControls.Grid
            End If
            If visibleControls.Items(2).Selected Then
                explorerControls = explorerControls Or Telerik.Web.UI.FileExplorer.FileExplorerControls.Toolbar
            End If
            If visibleControls.Items(3).Selected Then
                explorerControls = explorerControls Or Telerik.Web.UI.FileExplorer.FileExplorerControls.TreeView
            End If
            FileExplorer1.VisibleControls = explorerControls
        End Sub

After running into the problem, I thought that the fileexplorer might need to be re-initialized after having its visibility toggled, so I tried running the above code again. It did not work, so I tried running just certain parts of it, and it still did not work.

Any ideas?

Thanks,
Jenna

[Fiko]

Hello Jenna,

On the example we set a value "false" to the EnableViewState property for demonstration purposes only. In a real scenario we do not recommend to set it to "true" because of possible problems - such as in your scenario.

Best wishes,
Fiko
the Telerik team

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