Ich möchte Gitternetzansicht auf Treenode binden click.code funktioniert gut ohne Fehler, aber in UI ändert sich nichts, aber wenn ich den gleichen Code auf Knopf klicken, bindet Gridview Daten ordnungsgemäß.Bind Gridview auf Treeview Knoten Klicken Sie
Mein APSX Code ist
<asp:ScriptManager ID="ScriptManager1" runat="server">
</asp:ScriptManager>
<div style="overflow: scroll; height: 450px;">
<asp:UpdatePanel ID="UpdatePanel2" runat="server" UpdateMode="Always">
<ContentTemplate>
<asp:TreeView ID="Folder_Treeview" runat="server" ShowLines="true" LeafNodeStyle-CssClass="childnode"
Style="" ForeColor="Blue" SelectedNodeStyle-ForeColor="Green" OnSelectedNodeChanged="Folder_Treeview_SelectedItemChanged">
</asp:TreeView>
</ContentTemplate>
</asp:UpdatePanel>
</div>
<asp:GridView ID="GridView1" CssClass="grid" GridLines="None" ShowFooter="true" AllowPaging="true"
PageSize="5" AutoGenerateColumns="false" OnPageIndexChanging="GridView1_PageIndexChanging"
runat="server">
<Columns>
<asp:TemplateField HeaderText="Name">
<ItemTemplate>
<asp:Label ID="lblName" runat="server" Text='<%#Eval("Name")%>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="File Length">
<ItemTemplate>
<asp:Label ID="lblLen" runat="server" Text='<%#Eval("Length")%>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="File Extention">
<ItemTemplate>
<asp:Label ID="lblFileType" runat="server" Text='<%#Eval("Extension")%>'>
</asp:Label></ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Creation Date & Time">
<ItemTemplate>
<asp:Label ID="lblDateTime" runat="server" Text='<%#Eval("CreationTime")%>'>
</asp:Label></ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
<p>
<asp:Label Text="" ID="lblMsg" runat="server"></asp:Label></p>
CS Code:
protected void Folder_Treeview_SelectedItemChanged(object sender, EventArgs e)
{
TreeNode node = this.Folder_Treeview.SelectedNode;
SetFolderPath(node);
}
public void SetFolderPath(TreeNode node)
{
Session["ParentFolderId"] = node;
// System.IO.DirectoryInfo RootDir = new System.IO.DirectoryInfo(Server.MapPath("~/"));
string CurrNode = node.Text;
string separator = "\\";
Folder_Treeview.PathSeparator = Convert.ToChar(separator);
while (node.Parent != null)
{
CurrNode = node.Parent.Text + this.Folder_Treeview.PathSeparator + CurrNode;
node = node.Parent;
}
ViewState["Folder"] = CurrNode;
ViewState["FileType"] = "All";
GetFilesFromFolder();
}
private void GetFilesFromFolder()
{
// GET A LIST OF FILES FROM A SPECIFILED FOLDER.
DirectoryInfo objDir = new DirectoryInfo(Server.MapPath((string)ViewState["Folder"]));
FileInfo[] listfiles = objDir.GetFiles("*." + ((string)ViewState["FileType"] != "All" ?
ViewState["FileType"] : "*"));
if (listfiles.Length > 0)
{
// BIND THE LIST OF FILES (IF ANY) WITH GRIDVIEW.
GridView1.Visible = true;
GridView1.DataSource = listfiles;
GridView1.DataBind();
lblMsg.Text = listfiles.Length + " files found";
}
else
{
GridView1.Visible = false;
lblMsg.Text = "No files found";
}
}
OnSelectedNodeChanged
Methode auf node
Klick aufgerufen werden, und alle Wert legt richtig, aber nie reflektieren lassen.
Bitte helfen.
Vielen Dank. Es ist nur wegen Update-Panel passiert. – user2148124