Mega Code Archive
Binding a GridView to directory files (VB)
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<%@ Page Language="VB" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs)
For Each drive As System.IO.DriveInfo In System.IO.DriveInfo.GetDrives()
Dim node As TreeNode = New TreeNode()
node.Value = drive.Name
If (drive.IsReady) Then
node.Text = drive.Name & " - (free space: " & drive.AvailableFreeSpace & ")"
LoadDirectories(node, drive.Name)
Else
node.Text = drive.Name & " - (not ready)"
End If
Me.TreeView1.Nodes.Add(node)
Next
Me.TreeView1.CollapseAll()
End Sub
Private Sub LoadDirectories(ByVal parent As TreeNode, ByVal path As String)
Dim directory As System.IO.DirectoryInfo = New System.IO.DirectoryInfo(path)
Try
For Each d As System.IO.DirectoryInfo In directory.GetDirectories()
Dim node As TreeNode = New TreeNode(d.Name, d.FullName)
parent.ChildNodes.Add(node)
LoadDirectories(node, d.FullName)
Next
Catch ex As System.UnauthorizedAccessException
parent.Text += " (Access Denied)"
Catch ex As Exception
parent.Text += " (Unknown Error: " + ex.Message + ")"
End Try
End Sub
Protected Sub TreeView1_SelectedNodeChanged _
(ByVal sender As Object, ByVal e As System.EventArgs)
Dim directory As System.IO.DirectoryInfo = New System.IO.DirectoryInfo(Me.TreeView1.SelectedNode.Value)
Me.GridView1.DataSource = directory.GetFiles()
Me.GridView1.DataBind()
End Sub
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>Untitled Page</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<table>
<tr>
<td>
<asp:TreeView ID="TreeView1" runat="server"
OnSelectedNodeChanged="TreeView1_SelectedNodeChanged">
</asp:TreeView>
</td>
<td>
<asp:GridView ID="GridView1" runat="server"
AutoGenerateColumns="False" GridLines="None" CellPadding="3">
<Columns>
<asp:BoundField DataField="Name" HeaderText="Name"
HeaderStyle-HorizontalAlign="Left"
HeaderStyle-Font-Bold="true" />
<asp:BoundField DataField="Length" HeaderText="Size"
ItemStyle-HorizontalAlign="Right"
HeaderStyle-HorizontalAlign="Right"
HeaderStyle-Font-Bold="true" />
<asp:BoundField DataField="LastWriteTime"
HeaderText="Date Modified"
HeaderStyle-HorizontalAlign="Left"
HeaderStyle-Font-Bold="true" />
</Columns>
</asp:GridView>
</td>
</tr>
</table>
</div>
</form>
</body>
</html>
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