Iterate Through Directory Filenames Using JavaScript On C#?

May 16, 2010

I'm trying to read all filenames from a specified (server- not client) folder, and insert all the filenames into a javascript Array. It should behave like the Directory.GetFiles method in ASP.NET C#. I created a new array, and I just need the loop method (Javascript or jQuery) to iterate in the specific folder, and insert all the filenames into the array.

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Gridview Code:

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GridLines="None" CellPadding="2" Font-Size="35pt" AllowPaging="True" PageSize="9">
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SqlDataSource Code:

<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:FPConnectionString %>" SelectCommand="HDMonitoringOutstandingToday" SelectCommandType="StoredProcedure"></asp:SqlDataSource>
Link to printscreen of wallboard (not allowed to post images, damn newbie) >>> http://cl.ly/b48b88d9e5f9b7fa43ab

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code for the datalist:

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<ItemTemplate>
<asp:Label ID="lblPromoHeading" runat="server" Text='<%# Eval("eventHeading") %>' Font-Size="12pt" ForeColor="#FFFF00" />
<br />
<br />
<asp:Label ID="promoDate" runat="server" Text='<%# Eval("eventDate", "{0:D}") %>' Font-Size="11pt" ForeColor="#33FF00" /> <span style="color: #33ff00; font-size: 12pt">@</span> <asp:Label ID="lblPromoTime" runat="server" Text='<%# Eval("startTime", "{0:t}") %>' Font-Size="11pt" ForeColor="#33FF00" />
<br />
<br />
<asp:Label ID="lblPromoDetails" runat="server" Text='<%# Eval("eventDetails") %>' Font-Size="11pt" />
<br />
<br />
<br />
<asp:HyperLink ID="eventLink" Text="Check this out!" CssClass="linkEvent" Visible="false" runat="server" Target="_blank" ToolTip="click to go check out what's happening!" NavigateUrl='<%# Eval("eventLink") %>' />
<br />
<br />
<br />
<hr style="width: 480px; height: 1px; background-color: #ff9900; border-color: #ff9900" />
<br />
</ItemTemplate>
</asp:DataList>

In the code behind I set the datasource with code and now I am stumped on how to reach into the items and control the visibility of the 'check this out' link based upon whether the db field has a link in it or not.

protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
dtlPromoEvents.DataSource = LoadEvents();
//filter through the events and turn on visibility for the events that have a live link.
dtlPromoEvents.DataBind();
}
}
public static DataSet LoadEvents()
{
DataSet eventInfo = new DataSet();
string connectionString = ConfigurationManager.AppSettings["ConnectBeerGeeksDb"];
using (SqlConnection selectConnInfo = new SqlConnection(connectionString))
{
SqlDataAdapter adapterInfo = new SqlDataAdapter("SELECT [eventDate], [startTime], [eventHeading], [eventDetails], [eventLink] FROM [promoEvent] WHERE (eventDate + 1 > GETDATE()) ORDER BY eventDate", selectConnInfo);
selectConnInfo.Open();
eventInfo.Clear();
adapterInfo.Fill(eventInfo);
selectConnInfo.Close();
}
return eventInfo;
}

Adding the refined code that works on this url: [http://beergeekspub.com/events.aspx][1]

protected void dtlPromoEvents_ItemDataBound(object sender, DataListItemEventArgs e)
{
if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
{
// Retrieve the Hyperlink control in the current DataListItem.
HyperLink eLink = (HyperLink)e.Item.FindControl("eventLink");
// Check if a URL exists, if not then hide the control
if (string.IsNullOrEmpty(eLink.NavigateUrl))
{
eLink.Visible =false;
}
}
}

also the page load databinds the datalist -

protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
dtlPromoEvents.DataSource = LoadEvents();
dtlPromoEvents.DataBind();
}
}

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