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当我点击复选框时,如何防止页面重新加载? 当我有数百个复选框时,这可能很麻烦。 下面是我的代码:VB.NET每当我标记一个复选框时,页面将重新加载
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
If Not Page.IsPostBack Then
Dim di As New IO.DirectoryInfo(ImagePath)
Dim imageArray As IO.FileInfo() = di.GetFiles()
Dim image As IO.FileInfo
'list the names of all images in the specified directory
For Each image In imageArray.OrderBy(Function(i) i.Name)
CheckBoxList1.Items.Add(image.Name)
Next
End If
End Sub
ASP.NET:
<asp:CheckBoxList ID="CheckBoxList1" runat="server" RepeatLayout="table" RepeatColumns="4" RepeatDirection="vertical" AutoPostBack="True">
</asp:CheckBoxList>
我相信我设定的AutoPostBack =真,因为下面的代码:
Protected Sub btnDelete_Click(ByVal sender As Object, ByVal e As EventArgs) Handles btnDelete.Click
For count As Integer = 0 To CheckBoxList1.Items.Count - 1
If CheckBoxList1.Items(count).Selected Then
File.Delete(ImagePath & CheckBoxList1.Items(count).ToString)
CheckBoxList1.Items.Remove(count)
End If
Next
Response.Redirect("Delete.aspx")
End Sub
@Downvoter - 谨慎评论? – Oded