我没有找到解决问题的方法:
GridView分页事件
gvBanquet_PageIndexChanging
在UpdatePanel内部时不会触发。
问题代码在这里:
<asp:UpdatePanel ID="UpdatePanel1" runat="server" UpdateMode="Conditional">
<ContentTemplate>
<div class="col-lg-12 table-responsive">
<asp:GridView ID="gvBanquet" runat="server" AutoGenerateColumns="false"
OnRowCommand="gvBanquet_RowCommand" AllowPaging="True" PageSize="5"
EmptyDataText="No record found!" OnPageIndexChanging="gvBanquet_PageIndexChanging"
ShowHeaderWhenEmpty="true">
<Columns>
// here are templates
</Columns>
<PagerStyle CssClass="pagination-ys" />
</asp:GridView>
</div>
<!-- /.col-lg-12 -->
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="gvBanquet" EventName="PageIndexChanging" />
</Triggers>
</asp:UpdatePanel>
这是一个分页事件:
protected void gvBanquet_PageIndexChanging(object sender, GridViewPageEventArgs e)
{
gvBanquet.PageIndex = e.NewPageIndex;
// fill and bind gridview here
}
我添加了一个断点,但它没有触发。
如何触发分页按钮?
答案 0 :(得分:3)
GridView
没有绑定方法所以我提供了两种方法(两种方法都有效)
方法1 :与SqlDataSource
声明性绑定:
<form id="form1" runat="server">
<%--ScriptManager required by UpdatePanel --%>
<asp:ScriptManager runat="server" ID="sm" />
<div>
<asp:UpdatePanel runat="server" UpdateMode="Conditional">
<ContentTemplate>
<asp:GridView ID="gvProducts" runat="server" AutoGenerateColumns="False" AllowPaging="true" PageSize="5" DataKeyNames="ProductID" DataSourceID="sqlNWind">
<Columns>
<asp:BoundField DataField="ProductID" HeaderText="ProductID" SortExpression="ProductID" />
<asp:BoundField DataField="ProductName" HeaderText="ProductName" SortExpression="ProductName" />
<asp:TemplateField HeaderText="CategoryName" SortExpression="CategoryName">
<ItemTemplate>
<asp:Label ID="Label1" runat="server" Text='<%# Eval("CategoryName") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
<%--Triggers are redundant because GridView is inside the UpdatePanel --%>
</ContentTemplate>
</asp:UpdatePanel>
<asp:SqlDataSource ID="sqlNWind" runat="server" ConnectionString="<%$ ConnectionStrings:NorthwindCnn %>"
SelectCommand="SELECT Products.ProductID, Products.ProductName, Products.CategoryID, Categories.CategoryName FROM Products INNER JOIN Categories ON Products.CategoryID = Categories.CategoryID">
</asp:SqlDataSource>
</div>
</form>
不需要任何代码。
方法2 :从代码背后绑定:
.aspx
<form id="form1" runat="server">
<asp:ScriptManager runat="server" ID="sm" />
<div>
<asp:UpdatePanel runat="server" UpdateMode="Conditional">
<ContentTemplate>
<asp:GridView ID="gvProducts" runat="server" OnPageIndexChanging="gvProducts_PageIndexChanging" AutoGenerateColumns="False" AllowPaging="true" PageSize="5" DataKeyNames="ProductID">
<Columns>
<asp:BoundField DataField="ProductID" HeaderText="ProductID" InsertVisible="False" ReadOnly="True" SortExpression="ProductID" />
<asp:BoundField DataField="ProductName" HeaderText="ProductName" SortExpression="ProductName" />
<asp:TemplateField HeaderText="CategoryName" SortExpression="CategoryName">
<ItemTemplate>
<asp:Label ID="Label1" runat="server" Text='<%# Eval("CategoryName") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
</ContentTemplate>
</asp:UpdatePanel>
</div>
</form>
.aspx.vb
Private Sub Page_Load(sender As Object, e As EventArgs) Handles Me.Load
If Not Page.IsPostBack Then
BindProds()''//Bind initial
End If
End Sub
Protected Sub gvProducts_PageIndexChanging(sender As Object, e As GridViewPageEventArgs)
gvProducts.PageIndex = e.NewPageIndex
BindProds()''//Bind when pageIndex changing
End Sub
Private Sub BindProds()
Using cnn As New Data.SqlClient.SqlConnection(ConfigurationManager.ConnectionStrings("NorthwindCnn").ConnectionString)
Using cmd As New Data.SqlClient.SqlCommand("SELECT Products.ProductID, Products.ProductName, Products.CategoryID, Categories.CategoryName FROM Products INNER JOIN Categories ON Products.CategoryID = Categories.CategoryID", cnn)
Dim da As New Data.SqlClient.SqlDataAdapter(cmd)
Dim dt As New Data.DataTable()
da.Fill(dt)
da.Dispose()
gvProducts.DataSource = dt
gvProducts.DataBind()
End Using
End Using
End Sub
代码为VB.NET
。我希望OP可以将其翻译为C#
。
答案 1 :(得分:0)
没有看到getdata
代码的可能情况之一是:
每次更改页面索引时,都应该读取用于加载gridview的数据集(您的案例Datatable)。通过这种方式,您可以确保在gridview页码触发的每个单独的回发中,将填充结果。
<强>更新强>
尝试添加触发器
<Triggers>
<asp:AsyncPostBackTrigger ControlID="gvBanquet" EventName="PageIndexChanging" />
</Triggers>