使用没有ajax的javascript调用C#代码隐藏方法 [英] Calling C# code behind method using javascript without ajax
问题描述
我的asp.net文件中有2个按钮
I have 2 buttons in my asp.net File
<asp:Button ID="BTN_Send_LA" runat="server" Text="Save" OnClientClick="ConfirmSendData()"></asp:Button>
//The button the client will click
<asp:Button ID="UploadButton" runat="server" Text="" OnClick="BTN_Send_LA_Click"/>
//Dummy Button for the JS .click()
这是我的Js部分:
function ConfirmSendData() {
var r = confirm("Êtes vous bien: " + document.getElementById("<%=DDL_LaveurLA.ClientID%>").options[document.getElementById("<%=DDL_LaveurLA.ClientID%>").selectedIndex].text + " sinon veuillez changer dans le champ spécifié 'Laveur'");
if (r == true) {
var clickButton = document.getElementById("<%= UploadButton.ClientID %>");
clickButton.click();
//$('UploadButton').trigger('click'); TEST 1
//__doPostBack not working aswell
}
}
所以我希望这样做:
- 客户端点击第一个按钮(触发JS)=> Works
- R为真=>工作
- JS部分触发了UploadButton的Onclick =>不工作
我不明白为什么这个方法不起作用,因为它似乎是大多数其他答案对StackOverflow采取的一般方法?
I don't understand why this method doesn't work as it seems to be the general approach most other answers take on StackOverflow?
更新:
好的,我已经尝试了下面提出的所有解决方案,现在我遇到了奇怪的问题:
Ok, I've tried every solutions proposed below and now i have weird problems:
当我点击客户端按钮时,以下3个事项中的1个随机发生(路由跟随调试器)
When I click on the client button, 1 of the 3 following things happens randomly (route followed with the debugger)
1:按钮单击执行空白回发(IsPostBack == true)
事件OnClick =BTN_Send_LA_Click未激活
1: The button click do a blank postback (IsPostBack == true) event OnClick="BTN_Send_LA_Click" not fired
2:按钮单击执行空白回发(IsPostBack == false)
事件OnClick =BTN_Send_LA_Click未被解雇
2: The button click do a blank postback (IsPostBack == false) event OnClick="BTN_Send_LA_Click" not fired
3:该按钮正确触发虚拟按钮的事件OnClick =BTN_Send_LA_Click。
3: The button fire the event OnClick="BTN_Send_LA_Click" of the dummy button properly.
我不明白为什么。当我直接点击虚拟按钮时,一切正常
I don't understand why. When i click directly on the dummy button, everything works fine
每次我执行CTRL + F5时,我第一次单击客户端按钮将100%工作(事件被解雇)
别的东西:在我的事件BTN_Send_LA_Click()中,我改变了多个控件的背景颜色(lightgreen)
something else: in my event BTN_Send_LA_Click(), I change the background color of multiple controls (lightgreen)
1:如果我点击虚拟按钮=>控件的背景颜色已更改
1: If I click on the dummy button => the background color of the controls are changed
2:如果我点击客户端按钮,即使触发BTN_Send_LA_Click(),背景颜色也不会改变。
2: If I click on the client button and even if the BTN_Send_LA_Click() is fired, the background color doesn't change.
为什么?我完全迷失了这个
Why ? I'm totally lost on this one
更新代码:
function ConfirmSendData()
{
/*
var dd = document.getElementById("<%=DDL_LaveurLA.ClientID%>");
var txt = dd.options[dd.selectedIndex].text;
var r = confirm("Êtes vous bien: " + txt + " sinon veuillez changer dans le champ spécifié 'Laveur'"); */
var r = confirm("Êtes vous bien: " + document.getElementById("<%=DDL_LaveurLA.ClientID%>").options[document.getElementById("<%=DDL_LaveurLA.ClientID%>").selectedIndex].text + " sinon veuillez changer dans le champ spécifié 'Laveur'");
if (r == true) {
//$("#<%=UploadButton.ClientID%>").click();
var clickButton = document.getElementById("<%= UploadButton.ClientID %>");
clickButton.click();
}
return false;
}
推荐答案
你已经拥有了一切正确的除外:
You've got it all right except:
- 您需要在
}
> if statement。 -
ConfirmSendData()
需要返回false
以阻止第一个按钮提交。
- You need a closing
}
on yourif
statement. ConfirmSendData()
needs toreturn false
to prevent the first button from submitting.
ie
function ConfirmSendData() {
var r = confirm("Êtes vous bien...");
if (r == true) {
var clickButton = document.getElementById("<%= UploadButton.ClientID %>");
clickButton.click();
}
return false;
}
这篇关于使用没有ajax的javascript调用C#代码隐藏方法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!