使用 SweetAlert2 替换 ASP.Net 按钮上的 "return confirm()"

Question

在 ASP.Net 中工作时，我经常喜欢 "Are you sure?" 在单击删除按钮之类的内容时出现弹出窗口。这很容易像这样完成：

<asp:Button runat="server" id="btnDelete" Text="Delete" onClientClick="return confirm('Are you sure?');" onClick="btnDelete_Click" />

我真的很喜欢 SweetAlert2 的确认对话框的样式和总体感觉，但是当我尝试以类似的方式集成它们时，它们似乎有点麻烦。有人可以向我解释一下我如何能够 return SweetAlert2 对话框结果根据单击的按钮继续或停止吗？

这是我目前得到的：

<asp:Button runat="server" id="btnDelete" Text="Delete" onClientClick="return sweetAlertConfirm();" onClick="btnDelete_Click" />

    function sweetAlertConfirm() {
        event.preventDefault();
        swal({
            title: 'Are you sure?',
            text: "You won't be able to revert this!",
            type: 'warning',
            showCancelButton: true,
            confirmButtonColor: '#3085d6',
            cancelButtonColor: '#d33',
            confirmButtonText: 'Yes, delete it!'
//      }).then(function() {
//          CONFIRM WAS CHOSEN
//      }, {function() {
//          CANCEL WAS CHOSEN
        });
    }

对话框出现，删除没有被处理，当然，因为我目前正在做一个 event.preventDefault() 并且什么都没有被 returned。我还注意到 I can use promises，在我的 swal({...}) 之后添加了一个 .then()，但是我不确定在这种情况下如何使用它。

如果需要，我可以使用实际触发代码隐藏方法的隐藏按钮，并根据用户选择单击该隐藏按钮，但我希望避免这种情况。

Answer 1

由于 SweetAlert2 对话框是异步处理的，您必须在解决承诺时以编程方式触发另一个按钮单击。无需创建隐藏按钮，您可以通过设置标志以指示操作已确认来重用 btnDelete。当第二次点击被处理时，该标志将被检测到，按钮点击将被允许继续并触发服务器事件。

<asp:Button ... OnClientClick="return sweetAlertConfirm(this);" OnClick="btnDelete_Click" />

function sweetAlertConfirm(btnDelete) {
    if (btnDelete.dataset.confirmed) {
        // The action was already confirmed by the user, proceed with server event
        btnDelete.dataset.confirmed = false;
        return true;
    } else {
        // Ask the user to confirm/cancel the action
        event.preventDefault();
        swal({
            title: 'Are you sure?',
            text: "You won't be able to revert this!",
            type: 'warning',
            showCancelButton: true,
            confirmButtonColor: '#3085d6',
            cancelButtonColor: '#d33',
            confirmButtonText: 'Yes, delete it!'
        })
        .then(function () {
            // Set data-confirmed attribute to indicate that the action was confirmed
            btnDelete.dataset.confirmed = true;
            // Trigger button click programmatically
            btnDelete.click();
        }).catch(function (reason) {
            // The action was canceled by the user
        });
    }
}

Answer 2

var obj = { status: false, ele: null };
function DeleteConfirm(btnDelete) {

    if (obj.status) {
        obj.status = false;
        return true;
    };

    Swal.fire({
        title: 'Are you sure?',
        text: "You won't be able to revert this!",
        type: 'warning',
        showCancelButton: true,
        confirmButtonColor: '#3085d6',
        cancelButtonColor: '#d33',
        confirmButtonText: 'Yes, delete it!'
    }).then((result) => {
        if (result.value) {
            obj.status = true;
            //do postback on success
            obj.ele.click();

            Swal.fire({
                title: 'Deleted!',
                text: 'Your file has been deleted.',
                type: 'success',
                timer: 800
            })
        }
    });
    obj.ele = btnDelete;
    return false;
}

<link href="https://cdn.jsdelivr.net/npm/sweetalert2@8/dist/sweetalert2.min.css" rel="stylesheet"/>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js">
</script>
<script src="https://cdn.jsdelivr.net/npm/sweetalert2@8/dist/sweetalert2.min.js"></script>

<asp:LinkButton ID="cmdDelete" runat="server" CausesValidation="False" OnClientClick="return DeleteConfirm(this);">

使用 SweetAlert2 替换 ASP.Net 按钮上的 "return confirm()"

Using SweetAlert2 to replace "return confirm()" on an ASP.Net Button

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