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File explorer is not refreshed ?

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FileExplorer
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koteswararao
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koteswararao asked on 16 Oct 2012, 01:32 PM
hi experts ,

i am using the file explorer control in my project , i have one dropdown with two folder names when user select the folder all the file explorer functionality will apply to that chosen folder here i find two panels one is for folder treeview other one is for files which shows the file name and size when i change the option in the folder dropdown first panel didn't show the selected folder but second panel shows the selected folder files can u tell me the reason  plz, please check the screen shots also,

following is the code sinnpet which is written by be
-====================-------
<%@ Page Title="" Language="VB" MasterPageFile="~/Admin/Admin.master" AutoEventWireup="false" CodeFile="FileExplorer.aspx.vb" Inherits="Admin_FileExplorer" %>
<%@ Register Assembly="Telerik.Web.UI" Namespace="Telerik.Web.UI" TagPrefix="telerik" %>
<asp:Content ID="Content1" ContentPlaceHolderID="CP" Runat="Server">
  <div style="margin-left:50px" >
  <asp:DropDownList ID="ddlFiles" runat="server" AutoPostBack="true">
  <asp:ListItem >Images Folder</asp:ListItem>
  <asp:ListItem  Selected="True">Mass Image Uploading Folder</asp:ListItem>
  </asp:DropDownList>
 <br /><br />
    <telerik:RadFileExplorer runat="server" ID="fileExp" Width="520px" Height="520px">
                    <Configuration ViewPaths="~/HTMLEditorImages" UploadPaths="~/HTMLEditorImages" MaxUploadFileSize="26214400"
                    DeletePaths="~/HTMLEditorImages" />

                </telerik:RadFileExplorer>
                </div>
</asp:Content>


-===============================------
Imports Telerik.Charting
Imports Telerik.Web.UI
Partial Class Admin_FileExplorer
    Inherits AdminPage

    Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load

        If ddlFiles.SelectedIndex <= 0 Then
            fileExp.Configuration.UploadPaths = {"~/HTMLEditorImages"}
            fileExp.Configuration.ViewPaths = {"~/HTMLEditorImages"}
            fileExp.Configuration.DeletePaths = {"~/HTMLEditorImages"}
        Else
            fileExp.Configuration.UploadPaths = {"~/Admin/FTPDirectory/MassImages"}
            fileExp.Configuration.ViewPaths = {"~/Admin/FTPDirectory/MassImages"}
            fileExp.Configuration.DeletePaths = {"~/Admin/FTPDirectory/MassImages"}
        End If

    End Sub

End Class

 

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koteswararao
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answered on 17 Oct 2012, 05:52 AM
can you tell me the way to achieve my  functionality plz,i struck for at this problem.
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Vessy
Telerik team
answered on 17 Oct 2012, 03:46 PM
Hi,

I managed to reproduce the described issue and it has never entered in the "else" statement, because on Page_Load the ddlFiles.SelectedIndex was still equal to 0.

We managed to workaround the problem, with the following approach:
 -  add a hidden field to the page and assigning it the DropDownList.selectedIndex value in the drop-down OnChange event handler
 - in the Page_Load event check if the hidden field's value is <= 0 (or NULL) and set the desired paths to the FileExplorer.
 - in order to reload the FileExplorer's TreeView with the new folders, we clear its nodes on every Page_Load call.

ASPX:
<form id="form1" runat="server">
<telerik:RadScriptManager ID="RadScriptManager1" runat="server">
</telerik:RadScriptManager>
 
<div style="margin-left:50px">
<asp:DropDownList ID="ddlFiles" runat="server" AutoPostBack="true" onchange="javascript:OnChange();">
    <asp:ListItem>Images Folder</asp:ListItem>
    <asp:ListItem>Mass Image Uploading Folder</asp:ListItem>
</asp:DropDownList>
</div>
 
<telerik:RadFileExplorer ID="fileExp" runat="server"></telerik:RadFileExplorer>
 
<asp:HiddenField ID="DDLSelectedIndex" runat="server" />
 
<script type="text/javascript">
    function OnChange() {
        $get("DDLSelectedIndex").value = $get("ddlFiles").selectedIndex;
    }
</script>
</form>

VB:
Protected Sub Page_Load(sender As Object, e As EventArgs)
    fileExp.TreeView.Nodes.Clear()
 
    If [String].IsNullOrEmpty(DDLSelectedIndex.Value) OrElse Int32.Parse(DDLSelectedIndex.Value) <= 0 Then
        fileExp.Configuration.ViewPaths = New String() {"~/HTMLEditorImages"}
        fileExp.Configuration.DeletePaths = New String() {"~/HTMLEditorImages"}
        fileExp.Configuration.UploadPaths = New String() {"~/HTMLEditorImages"}
    Else
        fileExp.Configuration.ViewPaths = New String() {"~/Admin/FTPDirectory/MassImages"}
        fileExp.Configuration.DeletePaths = New String() {"~/Admin/FTPDirectory/MassImages"}
        fileExp.Configuration.UploadPaths = New String() {"~/Admin/FTPDirectory/MassImages"}
    End If
 
End Sub


Regards,
Vesi
the Telerik team
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koteswararao
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answered on 19 Oct 2012, 10:58 AM
thank you

i resolved my problem by adding this line in the page load
fileExp.TreeView.Nodes.Clear()

Thanks & Regards,
Koteswara Rao.
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koteswararao
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answered on 19 Oct 2012, 11:17 AM
is there any possibility to show the units to that size columns like (kb,mb ...)

let me know the feasibility of this 
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Vessy
Telerik team
answered on 22 Oct 2012, 02:00 PM
Hi,

It could be done by attaching a handler to the OnRowDataBound() event of the Grid. More information and a demo project on the subject is available in the following code library:
Customize the value shown in the Size column

Regards,
Vesi
the Telerik team
If you want to get updates on new releases, tips and tricks and sneak peeks at our product labs directly from the developers working on the RadControls for ASP.NET AJAX, subscribe to their blog feed now.
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koteswararao
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koteswararao
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Vessy
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