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ASP.NET Tutorial/File Directory/DriveInfo - История изменений
2026-04-29T18:29:11Z
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http://nfex.ru/index.php?title=ASP.NET_Tutorial/File_Directory/DriveInfo&diff=2987&oldid=prev
в 15:30, 26 мая 2010
2010-05-26T15:30:57Z
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http://nfex.ru/index.php?title=ASP.NET_Tutorial/File_Directory/DriveInfo&diff=2988&oldid=prev
Admin: 1 версия
2010-05-26T11:57:40Z
<p>1 версия</p>
<p><b>Новая страница</b></p><div>== Displaying local drive information (C#)==<br />
<br />
<br />
<br />
<br />
<!-- start source code --><br />
<br />
<source lang="csharp"><br />
<%@ Page Language="C#" %><br />
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><br />
<script runat="server"><br />
protected void Page_Load(object sender, EventArgs e)<br />
{<br />
System.IO.DriveInfo drive = new System.IO.DriveInfo(@"C:\");<br />
lblDriveName.Text = drive.Name;<br />
lblDriveType.Text = drive.DriveType.ToString();<br />
lblAvailableFreeSpace.Text = drive.AvailableFreeSpace.ToString();<br />
lblDriveFormat.Text = drive.DriveFormat;<br />
lblTotalFreeSpace.Text = drive.TotalFreeSpace.ToString();<br />
lblTotalSize.Text = drive.TotalSize.ToString();<br />
lblVolumeLabel.Text = drive.VolumeLabel;<br />
}<br />
</script><br />
<html xmlns="http://www.w3.org/1999/xhtml" ><br />
<head runat="server"><br />
<title>Untitled Page</title><br />
</head><br />
<body><br />
<form id="form1" runat="server"><br />
<div><br />
<table><br />
<tr><td>Drive Name:</td><td><br />
<asp:Label ID="lblDriveName" runat="server" Text="Label" /><br />
</td></tr><br />
<tr><td>Drive Type:</td><td><br />
<asp:Label ID="lblDriveType" runat="server" Text="Label"/><br />
</td></tr><br />
<tr><td>Available Free Space:</td><td><br />
<asp:Label ID="lblAvailableFreeSpace" runat="server" Text="Label" /><br />
</td></tr><br />
<tr><td>Drive Format:</td><td><br />
<asp:Label ID="lblDriveFormat" runat="server" Text="Label" /><br />
</td></tr><br />
<tr><td>Total Free Space:</td><td><br />
<asp:Label ID="lblTotalFreeSpace" runat="server" Text="Label" /><br />
</td></tr><br />
<tr><td>Total Size:</td><td><br />
<asp:Label ID="lblTotalSize" runat="server" Text="Label" /><br />
</td></tr><br />
<tr><td>Volume Label</td><td><br />
<asp:Label ID="lblVolumeLabel" runat="server" Text="Label" /> <br />
</td></tr><br />
</table><br />
<br />
</div><br />
</form><br />
</body><br />
</html></source><br />
<br />
<br />
<br />
== Displaying local drive information (VB)==<br />
<br />
<br />
<br />
<br />
<!-- start source code --><br />
<br />
<source lang="csharp"><br />
<%@ Page Language="VB" %><br />
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><br />
<script runat="server"><br />
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs)<br />
Dim drive As New System.IO.DriveInfo("C:\")<br />
lblDriveName.Text = drive.Name<br />
lblDriveType.Text = drive.DriveType.ToString()<br />
lblAvailableFreeSpace.Text = drive.AvailableFreeSpace.ToString()<br />
lblDriveFormat.Text = drive.DriveFormat<br />
lblTotalFreeSpace.Text = drive.TotalFreeSpace.ToString()<br />
lblTotalSize.Text = drive.TotalSize.ToString()<br />
lblVolumeLabel.Text = drive.VolumeLabel<br />
End Sub<br />
</script><br />
<html xmlns="http://www.w3.org/1999/xhtml" ><br />
<head runat="server"><br />
<title>Untitled Page</title><br />
</head><br />
<body><br />
<form id="form1" runat="server"><br />
<div><br />
<table><br />
<tr><td>Drive Name:</td><td><br />
<asp:Label ID="lblDriveName" runat="server" Text="Label" /><br />
</td></tr><br />
<tr><td>Drive Type:</td><td><br />
<asp:Label ID="lblDriveType" runat="server" Text="Label"/><br />
</td></tr><br />
<tr><td>Available Free Space:</td><td><br />
<asp:Label ID="lblAvailableFreeSpace" runat="server" Text="Label" /><br />
</td></tr><br />
<tr><td>Drive Format:</td><td><br />
<asp:Label ID="lblDriveFormat" runat="server" Text="Label" /><br />
</td></tr><br />
<tr><td>Total Free Space:</td><td><br />
<asp:Label ID="lblTotalFreeSpace" runat="server" Text="Label" /><br />
</td></tr><br />
<tr><td>Total Size:</td><td><br />
<asp:Label ID="lblTotalSize" runat="server" Text="Label" /><br />
</td></tr><br />
<tr><td>Volume Label</td><td><br />
<asp:Label ID="lblVolumeLabel" runat="server" Text="Label" /> <br />
</td></tr><br />
</table><br />
<br />
</div><br />
</form><br />
</body><br />
</html></source><br />
<br />
<br />
<br />
== Enumerating file system directories (C#)==<br />
<br />
<br />
<br />
<br />
<!-- start source code --><br />
<br />
<source lang="csharp"><br />
<%@ Page Language="C#" %><br />
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><br />
<script runat="server"><br />
protected void Page_Load(object sender, EventArgs e)<br />
{<br />
foreach (System.IO.DriveInfo drive in System.IO.DriveInfo.GetDrives())<br />
{<br />
TreeNode node = new TreeNode();<br />
node.Value = drive.Name;<br />
if (drive.IsReady)<br />
{<br />
node.Text = drive.Name + " - (free space: " + drive.AvailableFreeSpace + ")";<br />
LoadDirectories(node, drive.Name);<br />
}<br />
else<br />
node.Text = drive.Name + " - (not ready)";<br />
this.TreeView1.Nodes.Add(node);<br />
}<br />
}<br />
private void LoadDirectories(TreeNode parent, string path)<br />
{<br />
System.IO.DirectoryInfo directory = new System.IO.DirectoryInfo(path);<br />
try<br />
{<br />
foreach (System.IO.DirectoryInfo d in directory.GetDirectories())<br />
{<br />
TreeNode node = new TreeNode(d.Name, d.FullName);<br />
parent.ChildNodes.Add(node);<br />
LoadDirectories(node, d.FullName);<br />
}<br />
}<br />
catch (System.UnauthorizedAccessException e)<br />
{<br />
parent.Text += " (Access Denied)";<br />
}<br />
catch (System.IO.IOException e)<br />
{<br />
parent.Text += " (Unknown Error: " + e.Message + ")";<br />
}<br />
}<br />
</script><br />
<html xmlns="http://www.w3.org/1999/xhtml" ><br />
<head runat="server"><br />
<title>Untitled Page</title><br />
</head><br />
<body><br />
<form id="form1" runat="server"><br />
<div><br />
<table><br />
<tr><br />
<td><br />
<asp:TreeView ID="TreeView1" runat="server"></asp:TreeView><br />
</td><br />
</tr><br />
</table> <br />
</div><br />
</form><br />
</body><br />
</html></source><br />
<br />
<br />
<br />
== Enumerating file system directories (VB)==<br />
<br />
<br />
<br />
<br />
<!-- start source code --><br />
<br />
<source lang="csharp"><br />
<%@ Page Language="VB" %><br />
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><br />
<script runat="server"><br />
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs)<br />
For Each drive As System.IO.DriveInfo In System.IO.DriveInfo.GetDrives()<br />
Dim node As TreeNode = New TreeNode()<br />
node.Value = drive.Name<br />
If (drive.IsReady) Then<br />
node.Text = drive.Name & " - (free space: " & drive.AvailableFreeSpace & ")"<br />
LoadDirectories(node, drive.Name)<br />
Else<br />
node.Text = drive.Name & " - (not ready)"<br />
End If<br />
Me.TreeView1.Nodes.Add(node)<br />
Next <br />
End Sub<br />
Private Sub LoadDirectories(ByVal parent As TreeNode, ByVal path As String)<br />
<br />
Dim directory As System.IO.DirectoryInfo = _<br />
New System.IO.DirectoryInfo(path)<br />
<br />
Try<br />
For Each d As System.IO.DirectoryInfo In directory.GetDirectories()<br />
<br />
Dim node As TreeNode = New TreeNode(d.Name, d.FullName)<br />
parent.ChildNodes.Add(node)<br />
"Recurse the current directory<br />
LoadDirectories(node, d.FullName)<br />
Next<br />
Catch ex As System.UnauthorizedAccessException<br />
parent.Text += " (Access Denied)"<br />
Catch ex As System.IO.IOException<br />
parent.Text += " (Unknown Error: " + ex.Message + ")"<br />
End Try<br />
End Sub<br />
</script><br />
<html xmlns="http://www.w3.org/1999/xhtml" ><br />
<head runat="server"><br />
<title>Untitled Page</title><br />
</head><br />
<body><br />
<form id="form1" runat="server"><br />
<div><br />
<table><br />
<tr><br />
<td valign="top"><br />
<asp:TreeView ID="TreeView1" runat="server"></asp:TreeView><br />
</td><br />
</tr><br />
</table> <br />
</div><br />
</form><br />
</body><br />
</html></source><br />
<br />
<br />
<br />
== Enumerating through local file system drives (C#)==<br />
<br />
<br />
<br />
<br />
<!-- start source code --><br />
<br />
<source lang="csharp"><br />
<%@ Page Language="C#" %><br />
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><br />
<script runat="server"><br />
protected void Page_Load(object sender, EventArgs e)<br />
{<br />
foreach (System.IO.DriveInfo drive in System.IO.DriveInfo.GetDrives())<br />
{<br />
TreeNode node = new TreeNode();<br />
node.Value = drive.Name;<br />
if (drive.IsReady)<br />
{<br />
node.Text = drive.Name + " - (free space: " + drive.AvailableFreeSpace + ")";<br />
}<br />
else<br />
node.Text = drive.Name + " - (not ready)";<br />
this.TreeView1.Nodes.Add(node);<br />
}<br />
}<br />
</script><br />
<html xmlns="http://www.w3.org/1999/xhtml" ><br />
<head runat="server"><br />
<title>Untitled Page</title><br />
</head><br />
<body><br />
<form id="form1" runat="server"><br />
<div><br />
<table><br />
<tr><br />
<td valign="top"><br />
<asp:TreeView ID="TreeView1" runat="server"></asp:TreeView><br />
</td><br />
</tr><br />
</table><br />
<br />
</div><br />
</form><br />
</body><br />
</html></source><br />
<br />
<br />
<br />
== Enumerating through local file system drives (VB)==<br />
<br />
<br />
<br />
<br />
<!-- start source code --><br />
<br />
<source lang="csharp"><br />
<%@ Page Language="VB" %><br />
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><br />
<script runat="server"><br />
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs)<br />
For Each drive As System.IO.DriveInfo In System.IO.DriveInfo.GetDrives()<br />
Dim node As TreeNode = New TreeNode()<br />
node.Value = drive.Name<br />
If (drive.IsReady) Then<br />
node.Text = drive.Name & _<br />
" - (free space: " & drive.AvailableFreeSpace & ")"<br />
Else<br />
node.Text = drive.Name & " - (not ready)"<br />
End If<br />
Me.TreeView1.Nodes.Add(node)<br />
Next <br />
End Sub<br />
</script><br />
<html xmlns="http://www.w3.org/1999/xhtml" ><br />
<head runat="server"><br />
<title>Untitled Page</title><br />
</head><br />
<body><br />
<form id="form1" runat="server"><br />
<div><br />
<table><br />
<tr><br />
<td style="width: 100px" valign="top"><br />
<asp:TreeView ID="TreeView1" runat="server"></asp:TreeView><br />
</td><br />
</tr><br />
</table><br />
<br />
</div><br />
</form><br />
</body><br />
</html></source></div>
Admin