确认回发 OnClientClick 按钮 ASP.NET [英] Confirm postback OnClientClick button ASP.NET

问题描述

<asp:Button runat="server" ID="btnUserDelete" Text="Delete" CssClass="GreenLightButton"
                           OnClick="BtnUserDelete_Click"
                           OnClientClick="return UserDeleteConfirmation();" 
 meta:resourcekey="BtnUserDeleteResource1" />

我试过了:

function UserDeleteConfirmation() {
        if (confirm("Are you sure you want to delete this user?"))
            return true;
        else
            return false;
}

和

function UserDeleteConfirmation() {
    if (confirm("Are you sure you want to delete this user?")) {
            __doPostBack(btnUserDelete, '');
    }

    return false;
 }

它们都不起作用.

推荐答案

试试这个:

<asp:Button runat="server" ID="btnUserDelete" Text="Delete" CssClass="GreenLightButton"
                       OnClick="BtnUserDelete_Click"
                       OnClientClick="if ( ! UserDeleteConfirmation()) return false;" 
 meta:resourcekey="BtnUserDeleteResource1" />

这样返回"只会在用户点击取消"时执行，而不会在他点击确定"时执行.

This way the "return" is only executed when the user clicks "cancel" and not when he clicks "ok".

顺便说一下，您可以将 UserDeleteConfirmation 函数缩短为:

By the way, you can shorten the UserDeleteConfirmation function to:

function UserDeleteConfirmation() {
    return confirm("Are you sure you want to delete this user?");
}

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