標籤：
（一） contyolles public ActionResult CheckUserID(string id) { // string[] s = new string[] { "1", "2", "3" }; bool isOK = new zhuceBF().yanzheng(id); ViewBag.Data = isOK; return PartialView(); }
(二) model public bool yanzheng(string id) { var query = context.zhuce.Where(p=>p.userID==id); if (query.Count()>0) { return false; } return true; }
(三)view@{ ViewBag.Title = "CheckUserID";}<h2>視窗訊息</h2><div> @{ bool isOK = (bool)ViewBag.Data; if(isOK) { <div>請您開始註冊</div> } else { <div>使用者名稱已存在</div> } }<
(四)在首頁上顯示這個按鈕<head> <meta name="viewport" content="width=device-width" /> <title>Add</title> <script src="~/js/jquery-1.7.1.min.js"></script> <script langugage="javascript"> function checkUID() { var s = $("#userID").val(); $("#ss").load("/Home/CheckUserID/" + s); } </script> </head><body>（四）下面的視圖介面 <tr> @using (Html.BeginForm("Insert", "Home",FormMethod.Post)) { <td> <div id="dd"></div> @using(Html.BeginForm("","")){ <div> @Html.TextBox("userID") <input type="button" value="檢查唯一" onclick="checkUID()" /> <span id="ss"></span> </div> } </td> <td> @Html.TextBox("userName",null)</td><br/> <td> @Html.Password("userPwd")</td><br/> <td>@Html.Password("mima")</td><br/> <td> <input type="submit" value="註冊"></td> } </tr>
★（五）添加一個JS的檔案，添加使用JS
MVC （串連資料庫）按鈕 唯一驗證
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