.Net Core Web Api_筆記15_api結合ADO.NET資料庫操作part3_資料刪除

2021 iThome 鐵人賽

DAY 2

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.NET Core WebApi網頁應用開發系列第 15 篇

13th鐵人賽

Samuel

2021-09-30 14:58:59

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我們在上一篇的Show.html
已經完成了資料查詢呈現
這裡要多出操作(比方像是編輯、刪除...)

先撰寫好刪除的action method

刪除很單純就是針對id作條件式指定的HttpDelete操作

[HttpDelete("Delete")]
public ActionResult<int> DeleteNewsType(int? id)
{
    if(id == null)
    {
        return NotFound();
    }

    string strSQL = @"delete from NewsType where NewsTypeId=@Id";
    Hashtable htParms = new Hashtable();
    htParms.Add("@Id", id);
    int RowCount = MSSQLHelper.ExecuteNonQuery(strSQL, htParms);
    return RowCount;
}

在Show.html下我們可以擴充一個欄位呈現刪除的操作

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8" />
    <title>Show NewsType</title>
    <link href="../css/bootstrap.min.css" rel="stylesheet" />
    <script src="../js/jquery/jquery.min.js"></script>
</head>
<body style="margin:20px;">
    <table id="tbNewsType" class="table table-bordered">
        <thead>
            <tr>
                <td>文章ID</td>
                <td>分類</td>
                <td>是否啟用</td>
                <td>刪除</td>
            </tr>
        </thead>
        <tbody>
        </tbody>
    </table>

    <script type="text/javascript">
        $(function () {
            var tbody = $('#tbNewsType tbody')
            $.ajax({
                type: 'get',
                url: '/api/NewsType/Show',
                dataType: 'json',
                success: function (result) {
                    $.each(result, function (n, value) {
                        var IsEnabled;
                        value.isEnabled ? IsEnabled = '啟用' : IsEnabled = '關閉';
                        var tr_val = "";
                        tr_val += "<tr><td>" + value.newsTypeId
                            + "</td><td>" + value.newsTypeName
                            + "</td><td>" + IsEnabled
                            + "</td><td><a href='javascript:Del(" + value.newsTypeId + ")'>刪除</a>"
                            + "</td></tr>";
                        tbody += tr_val;
                    });
                    $('#tbNewsType').append(tbody);
                }
            });
        });

        function Del(id) {
            $.ajax({
                type: "delete",
                url: "/api/newstype/delete?id=" + id,
                dataType: "json",
                success: function (result) {
                    if (result != "0") {
                        location.href = "Show.html";
                    }
                }
            });
        }
    </script>
</body>
</html>