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Listing Folders in a Directory using asp.net and C#

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你的背包
你的背包 2020-12-11 07:58

.aspx file:

<%@ Import Namespace=\"System.IO\" %>
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  • 北荒
    2020-12-11 08:35

    Display directories and files on a blank page

    // YourPage.aspx
<%@ Import Namespace="System.IO" %>
<html>
<body>
    <% foreach (var dir in new DirectoryInfo("E:\\TEMP").GetDirectories()) { %>
        Directory: <%= dir.Name %><br />

        <% foreach (var file in dir.GetFiles()) { %>
            <%= file.Name %><br />
        <% } %>
        <br />
    <% } %>
</body>
</html>
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  • 迷失自我
    2020-12-11 08:36

    Console.WriteLine will write to the console, not the web page contents you are returning. You need to add a container element to your ASPX page, probably a grid view or repeater, then add assign the file list from the code behind file (to the HTML element you added, use the runat='server' tag and assign it an ID, then reference it by ID name in the code).

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  • 清歌不尽
    2020-12-11 08:46

    You can use Directory class

    • The first parameter is the path it can be relative or absolute
    • The second parameter for matching against the names of subdirectories in path. This parameter can contain a combination of valid literal and wildcard characters, but it doesn't support regular expressions.

    / 

    //using System.IO; 
private void GetDirectories()
{
    DataTable dt = new DataTable();
    dt.Columns.Add("direction",typeof(string));
    try
    {
        string[] dirs = Directory.GetDirectories(@"yourpath", "*", SearchOption.AllDirectories);
        foreach (string dir in dirs)
        {
            dt.Rows.Add(dir);
        }
        if (dirs.Length <= 0)
        {
             lbl.text="your message"

        }

       rpt.DataSource = dt; //your repeater 
       rpt.DataBind(); //your repeater 
    }
    catch (Exception e)
    {
       lbl.text="your message"//print message assign it to label
    }
}

    In the aspx page 

       <asp:Label runat="server" ID="lbl"></asp:Label>
    <asp:Repeater ID="rpt" runat="server" ClientIDMode="AutoID">
        <ItemTemplate>
            <tr>
                <td><%#Eval("direction")%></td>

            </tr>
        </ItemTemplate>
    </asp:Repeater>
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  • 萌比男神i
    2020-12-11 08:55

    Don't use Console.WriteLine() use Response.Write(). You're trying to write to the console in a web application.

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  • 没有蜡笔的小新
    2020-12-11 08:58

    Response.Write in a static codebehind method: DIRTY! In addition you did't control the position where you write. This a little bit cleaner... 

    // YourPage.aspx
<%@ Import Namespace="System.IO" %>
<html>
<body>
    <ul>
        <% foreach(var file in Directory.GetFiles("C:\\Temp", "*.*", SearchOption.AllDirectories)) { %>
        <li><%= file %></li>       
        <% } %>     
    </ul>
</body>
</html>
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