asp.net的LinkBut​​ton的OnClientClick和回传 [英] asp.net linkbutton onclientclick and postback

问题描述

我使用的是ASP.NET的LinkBut​​ton用的OnClientClick属性时遇到一些奇怪的行为。

I'm experiencing some weird behaviour when using a ASP.NET LinkButton with a OnClientClick-property.

ASPX

<asp:DropDownList ID="test" runat="server" AutoPostBack="true">
    <asp:ListItem>test1</asp:ListItem>
    <asp:ListItem>test2</asp:ListItem>
    <asp:ListItem>test3</asp:ListItem>
</asp:DropDownList>

<asp:LinkButton CssClass="button" ID="btnDeleteGroup" runat="server">
    <img src="cross.png" alt="delete-group" width="16" height="16" />
    <span><asp:Literal ID="lblDeleteGroup" runat="server" Text="Delete" /></span>
 </asp:LinkButton>

code-背后

protected void Page_Load(object sender, EventArgs e)
{
    btnDeleteGroup.OnClientClick = "return confirmAction('delete?');";
}

如果没有的OnClientClick，一切都很好。
随着的OnClientClick，当（使用的DropDownList）发生回传我的LinkBut​​ton dissappears

Without the OnClientClick, everything is fine. With the OnClientClick, my LinkButton dissappears when a postback occurs (using the DropDownList).

在另一个话题，我已经找到了解决的EnableViewState设置为false 。
但我写的应用程序是多语种所以用的EnableViewState设置为假，我也失去了我的翻译。

In another topic, I've found a solution to set EnableViewState to false. But the application I'm writing is multilingual so with EnableViewState set to "false", I'm also losing my translation.

if ( !Page.IsPostBack ) {
    // translate all form elements
    TranslationUI();
}

我宁愿不调用这​​个方法之外！Page.IsPostBack方法，因为基于数据库的TranslationUI法（）转换的表单元素。

I rather not call this method outside the !Page.IsPostBack method because the TranslationUI-method() translates the form elements based on a database.

推荐答案

我做了一些测试 - 我认为这个问题是，你需要确保的LinkBut​​ton内的所有嵌套的标签是服务器端控件（即无论是添加 =服务器或 IMG 标签更改相关.NET控件，如切换到 ASP：图像）。当在LinkBut​​ton的内非服务器端的标记，必须有与它如何设置其的ViewState或东西的问题...

I did some testing - I think the problem is, you need to ensure all nested tags within the LinkButton are serverside controls (I.e. either add runat="server" or change to related .net control, such as change the img tag to asp:Image). When there is non server-side markup within the LinkButton, there must be an issue with how it sets up its ViewState or something...

不管怎样，以下工作正常：

Anyway, the following works fine:

<asp:DropDownList ID="test" runat="server" AutoPostBack="true">
    <asp:ListItem>test1</asp:ListItem>
    <asp:ListItem>test2</asp:ListItem>
    <asp:ListItem>test3</asp:ListItem>
</asp:DropDownList>

<asp:LinkButton CssClass="button" ID="btnDeleteGroup" runat="server">
    <asp:Image runat="server" ID="imgDeleteGroup" width="16" height="16" ImageUrl="cross.png" />
    <asp:Literal ID="lblDeleteGroup" runat="server" Text="Delete" />
</asp:LinkButton>

背后code：

protected void Page_Load(object sender, EventArgs e)
{
    btnDeleteGroup.OnClientClick = "return confirm('delete?');";
}

这篇关于asp.net的LinkBut​​ton的OnClientClick和回传的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！