如何为Repeater中的LinkButton执行AsyncPostBackTrigger
在我的页面中,中继器内有一个 LinkButton,但 UpdatePanel 找不到 AsyncPostBackTrigger 的 LinkButton。
这里是mycode.aspx
<asp:ScriptManager ID="Test1" runat="server" />
<asp:UpdatePanel ID="TestUpdate" runat="server" UpdateMode="Always">
<ContentTemplate>
<table width="100%">
<tr valign="top">
<td width="50%">
<asp:Repeater ID="productList" runat="server" onitemcommand="productList_ItemCommand">
<HeaderTemplate>
<ul type="disc">
</HeaderTemplate>
<ItemTemplate>
<li>
<asp:Label id="L1" runat="server" Text='<%# Eval("productName") %>'></asp:Label><br />
Price:
<asp:Label runat="server" Text='<%# Eval("productPrice") %>' ></asp:Label> Bath<br />
<img alt="" src="Images/product/product<%# Eval("productID") %>.png" style="width: 200px; height: 130px" /><br />
<asp:TextBox ID="num_product" runat="server" Text="0"></asp:TextBox><br />
<asp:LinkButton ID="order_button" runat="server"><img alt="" src="~/Images/button/order.png" /></asp:LinkButton>
</li>
</ItemTemplate>
<FooterTemplate>
</ul>
</FooterTemplate>
</asp:Repeater>
<td>
<span class="labelText">Order list</span>
<asp:BulletedList ID="orderList" runat="server" BulletStyle="Numbered">
</asp:BulletedList>
</td>
</tr>
</table>
</ContentTemplate>
</asp:UpdatePanel>
这里是mycode.aspx.cs
protected void productList_ItemCommand(object source, RepeaterCommandEventArgs e)
{
//button
/*LinkButton btn = new LinkButton();
btn.ID = "order_button";
btn.Click += LinkButton1_Click;
Test1.RegisterAsyncPostBackControl(btn);*/
LinkButton btn = (LinkButton)e.Item.FindControl("order_button");
btn.Click += LinkButton1_Click;
Test1.RegisterAsyncPostBackControl(btn);
/*AsyncPostBackTrigger trigger = new AsyncPostBackTrigger();
trigger.ControlID = btn.ClientID;
trigger.EventName = "Click";
TestUpdate.Triggers.Add(trigger);*/
}
protected void LinkButton1_Click(object sender, EventArgs e)
{
//string name = ProductName1.Text.ToString();
//int price = System.Convert.ToInt32(ProductPrice1.ToString(), 10);
//int number = System.Convert.ToInt32(TextBox1.ToString(),10);
//orderList.Items.Clear();
//orderList.Items.Add(new ListItem(name));
//ListItem product1 = new ListItem();
//product1.Text = name;
orderList.Items.Add("test");
}
我尝试了很多方法,但是页面仍然刷新。您有什么建议吗?
In my page, I have an LinkButton inside repeater, but the UpdatePanel cannot find the LinkButton to AsyncPostBackTrigger.
Here is mycode.aspx
<asp:ScriptManager ID="Test1" runat="server" />
<asp:UpdatePanel ID="TestUpdate" runat="server" UpdateMode="Always">
<ContentTemplate>
<table width="100%">
<tr valign="top">
<td width="50%">
<asp:Repeater ID="productList" runat="server" onitemcommand="productList_ItemCommand">
<HeaderTemplate>
<ul type="disc">
</HeaderTemplate>
<ItemTemplate>
<li>
<asp:Label id="L1" runat="server" Text='<%# Eval("productName") %>'></asp:Label><br />
Price:
<asp:Label runat="server" Text='<%# Eval("productPrice") %>' ></asp:Label> Bath<br />
<img alt="" src="Images/product/product<%# Eval("productID") %>.png" style="width: 200px; height: 130px" /><br />
<asp:TextBox ID="num_product" runat="server" Text="0"></asp:TextBox><br />
<asp:LinkButton ID="order_button" runat="server"><img alt="" src="~/Images/button/order.png" /></asp:LinkButton>
</li>
</ItemTemplate>
<FooterTemplate>
</ul>
</FooterTemplate>
</asp:Repeater>
<td>
<span class="labelText">Order list</span>
<asp:BulletedList ID="orderList" runat="server" BulletStyle="Numbered">
</asp:BulletedList>
</td>
</tr>
</table>
</ContentTemplate>
</asp:UpdatePanel>
Here is mycode.aspx.cs
protected void productList_ItemCommand(object source, RepeaterCommandEventArgs e)
{
//button
/*LinkButton btn = new LinkButton();
btn.ID = "order_button";
btn.Click += LinkButton1_Click;
Test1.RegisterAsyncPostBackControl(btn);*/
LinkButton btn = (LinkButton)e.Item.FindControl("order_button");
btn.Click += LinkButton1_Click;
Test1.RegisterAsyncPostBackControl(btn);
/*AsyncPostBackTrigger trigger = new AsyncPostBackTrigger();
trigger.ControlID = btn.ClientID;
trigger.EventName = "Click";
TestUpdate.Triggers.Add(trigger);*/
}
protected void LinkButton1_Click(object sender, EventArgs e)
{
//string name = ProductName1.Text.ToString();
//int price = System.Convert.ToInt32(ProductPrice1.ToString(), 10);
//int number = System.Convert.ToInt32(TextBox1.ToString(),10);
//orderList.Items.Clear();
//orderList.Items.Add(new ListItem(name));
//ListItem product1 = new ListItem();
//product1.Text = name;
orderList.Items.Add("test");
}
I tried many methods, but the page is still refresh. Do you have any suggestion?
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Repeater 控件的 ItemCreated 事件内部向 ScriptManager 注册按钮。
Inside ItemCreated event of the Repeater control register the button with ScriptManager.
我有类似的问题,但我不想更新整个中继器,只想更新中继器之外的内容......所以我所做的是
1。添加中继器
2.添加包含可更新内容的更新面板和触发器
I had similar problem, but I didn't want to update the whole repeater, only a content outside of the repeater... so what I did was
1. Add the repeater
2. Add the Update Panel with the updatable content, and the trigger
将以下属性添加到包含中继器和链接按钮的页面指令也将起作用:
<%@ page ClientIDMode="AutoID" %>
我有一个需要异步工作和完整回发的控件,所以使用 ScriptManager.RegisterAsyncPostBackControl 对我来说不起作用。通过将控件(包含中继器和链接按钮)封装在 UpdatePanel 内,链接按钮将导致异步回发。如果没有更新面板,链接按钮将导致完整回发。
希望这对其他人有帮助。
Adding the following attribute to the page directive containing the repeater and linkbutton will also work:
<%@ page ClientIDMode="AutoID" %>
I had a control that needed to work both asynchronously and full postback, so using the ScriptManager.RegisterAsyncPostBackControl would not work for me. By enclosing the control (which contained a repeater and linkbutton) inside of an UpdatePanel, the linkbutton would cause an asynchronous postback. With no updatepanel, the linkbutton would cause a fullpostback.
Hope this helps someone else.