单击中继器中的复选框列表时刷新页面
我对更新面板中的中继器控制这样的问题感到恼火。
<asp:UpdatePanel ID="UpdPnlConstituentRepeater" ChildrenAsTriggers="true" runat="server">
<ContentTemplate>
<asp:Repeater ID="repConstituentInformation" runat="server" OnItemDataBound="repConstituentInformation_ItemDataBound">
<ItemTemplate>
<asp:DropDownList ID="dropRegistrantDownCostType" runat="server" AppendDataBoundItems="true"
AutoPostBack="true" OnSelectedIndexChanged="dropRegistrantDownCostType_SelectedIndexChanged"
EnableViewState="true">
<asp:ListItem Text="Select Type" Value="0" Selected="True" />
</asp:DropDownList>
<asp:CheckBoxList ID="chkBoxListRegistrantBenefits" AutoPostBack="true" runat="server"
OnSelectedIndexChanged="chkBoxListRegistrantBenefits_SelectedIndexChanged">
</asp:CheckBoxList>
</itemTemplate>
</ContentTemplate>
</asp:UpdatePanel>
我面临的问题是，每当我从下拉列表中选择任何值时，所有页面都会刷新。在谷歌上花了几个小时后，我找到了一个解决方案，即在中继器的 itemdatabound 事件上，我们只需要在找到下拉列表后添加以下代码，
Dim sm As ScriptManager = ScriptManager.GetCurrent(Page)
sm.RegisterAsyncPostBackControl(objDropdownlist)
它非常有效对于下拉列表来说很好，但对于复选框列表同样不起作用，就像使用 scripmanager 实例一样，如果我编写 sm.RegisterAsyncPostBackControl(chkBoxListRegistrantBenefits)，它不起作用:(
I am annoyed with a problem I have repeater control in updatepanel like this.
<asp:UpdatePanel ID="UpdPnlConstituentRepeater" ChildrenAsTriggers="true" runat="server">
<ContentTemplate>
<asp:Repeater ID="repConstituentInformation" runat="server" OnItemDataBound="repConstituentInformation_ItemDataBound">
<ItemTemplate>
<asp:DropDownList ID="dropRegistrantDownCostType" runat="server" AppendDataBoundItems="true"
AutoPostBack="true" OnSelectedIndexChanged="dropRegistrantDownCostType_SelectedIndexChanged"
EnableViewState="true">
<asp:ListItem Text="Select Type" Value="0" Selected="True" />
</asp:DropDownList>
<asp:CheckBoxList ID="chkBoxListRegistrantBenefits" AutoPostBack="true" runat="server"
OnSelectedIndexChanged="chkBoxListRegistrantBenefits_SelectedIndexChanged">
</asp:CheckBoxList>
</itemTemplate>
</ContentTemplate>
</asp:UpdatePanel>
The problem I face that whenever I select any value from dropdown all the page gets refreshed After spending hours on the google I found a solution i.e, on itemdatabound event of repeater we just need to add the following code after finding the dropdown,
Dim sm As ScriptManager = ScriptManager.GetCurrent(Page)
sm.RegisterAsyncPostBackControl(objDropdownlist)
It worked very well for the dropdown but same is not working for checkboxlist like using the scripmanager instance if I write sm.RegisterAsyncPostBackControl(chkBoxListRegistrantBenefits), it is not working :(
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将
ClientIDMode="AutoID"添加到 Repeater 控件。您不必添加任何触发器，甚至不必调用
RegisterAsyncPostBackControl。ChildrenAsTriggers应该处理这个问题。Add
ClientIDMode="AutoID"to the Repeater control.You should not have to add any triggers and you should not even have to call
RegisterAsyncPostBackControl. TheChildrenAsTriggersshould take care of that.在 Repeater ItemDataBound 事件上
使用 screiptmanager 方法 RegisterAsyncPostBackControl
this.ScriptManager1.RegisterAsyncPostBackControl(
e.Item.FindControl(" 将您的复选框 ID 放在这里"));
on Repeater ItemDataBound event
use screiptmanager method RegisterAsyncPostBackControl
this.ScriptManager1.RegisterAsyncPostBackControl(
e.Item.FindControl(" put here your checkbox ID "));
在
Add this Before start of
<ContentTemplate>: