OnClientClick和OnClick on asp:button [英] OnClientClick and OnClick on asp:button

问题描述

大家好，

我有一个同时使用OnClientClick和OnClick的按钮.

onClientClick可以很好地工作，但是当不满足onClientClick条件时，不会触发服务器端单击事件.

Hey everyone,

I have a button in which I am using both OnClientClick and OnClick.

The onClientClick works well, but when onClientClick condition is not met, Server side click event is not fired.

<asp:Button ID="btnDelete" runat="server" Text="Delete" Style="float: left; margin-right: 10px; color: black; font-weight: bold; margin-left: 40px" Height="26px" Width="67px" OnClientClick = "javascript:selectedItems(); return false;" OnClick = "btnDelete_Click" CausesValidation="false" />

function selectedItems()
         {
          var MasterTable = $find("<%=RadGrid1.ClientID%>").get_masterTableView();
          var selectedItemsCount = MasterTable.get_selectedItems().length;
          if (selectedItemsCount == 0) {
              alert("Select at least one item!");
              return false;
                       }
                     }

推荐答案

find(" ).get_masterTableView(); var selectedItemsCount = MasterTable.get_selectedItems().length; 如果(selectedItemsCount == 0 ){ alert(" )； 返回 假； } }

find("<%=RadGrid1.ClientID%>").get_masterTableView(); var selectedItemsCount = MasterTable.get_selectedItems().length; if (selectedItemsCount == 0) { alert("Select at least one item!"); return false; } }

您总是返回"false".即是问题.
将javascript函数的调用更改为

You are returning ''false'' always . ie is the issue.
Change the calling of javascript function as

OnClientClick="javascript: return selectedItems();"<br />

希望对您有帮助:)

Hope this will help you :)

您的责任就在这行中

Hi,

your problme is in this line

OnClientClick="javascript:selectedItems();return false;"

如果执行"return false"，则它将永远不会提交，并且OnClick(服务器端将永远不会执行).

返回假"语句应是有条件的.

像这样更改代码:

if "return false" is execute then it would never submit and OnClick(which is sever side would never executed).

"return false" statement should be conditional.

change the code like this:

OnClientClick="javascript:selectedItems();"

并且在selectedItems()javascript函数的定义中

and in the defination of selectedItems() javascript function

if (selectedItemsCount == 0) 
{                       
    alert("Select at least one item!");
    return false;
}
else
{
    // this path ensures that when user selects at least 1 item then it 
    // proceeds to server side code OnClick to be executed.
    return true;
}

希望有帮助，

谢谢
Arindam D Tewary，

Hope that helps,

Thanks
Arindam D Tewary,

这篇关于OnClientClick和OnClick on asp:button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！