如何在JSON字符串中使用TextBox

本文介绍了如何在JSON字符串中使用TextBox的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

在按下Button1执行GetDateTime（）之前键入的TextBox1没有注册数字或字符串：

The TextBox1 is not registering a number or string when typed in before the Button1 is pressed executing GetDateTime():

var jsonid = $("#<%= TextBox1.ClientID %>").text(); var json1 = "{'id': '" + jsonid + "'}";

没有错误代码，ID：之后没有打印出来。 Default.aspx

There is no error code there is just nothing printed out after "ID:". Default.aspx

<script type="text/javascript" src="../Scripts/jquery-1.4.1.js"></script> <script type="text/javascript" src="ajax.googleapis/ajax/libs/jquery/1.11.1/jquery.min.js"></script> <script type="text/javascript"> function GetDateTime() { var jsonid = $("#<%= TextBox1.ClientID %>").text(); var json1 = "{'id': '" + jsonid + "'}"; $.ajax ({ type: "POST", url: "Default.aspx/GetServerDateTime", data: json1, contentType: "application/json; charset=utf-8", dataType: "json", success: function (result) { alert(result.d); }, error: function (status, ex) { alert("Error Code: Status: " + status + " Ex: " + ex); } }); } </script>

<asp:ScriptManager ID="ScriptManager1" runat="server"></asp:ScriptManager> <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox> <asp:Button ID="Button1" runat="server" Text="AJAX" OnClick="Button1_Click" />

Default.aspx.cs

Default.aspx.cs

protected void Button1_Click(object sender, EventArgs e) { ScriptManager.RegisterClientScriptBlock(this, this.GetType(), "javascript", "Javascript:GetDateTime();", true); } [System.Web.Services.WebMethod] public static string GetServerDateTime(string id) { string datetimeid1 = "ID: " + id + " Date&Time: " + DateTime.Now.ToString("MM/dd/yyyy hh:mm:ss tt"); return datetimeid1; }

推荐答案

（ ＃<％= TextBox1.ClientID％>）。text（）; var json1 = {'id' ：' + jsonid + '}; ("#<%= TextBox1.ClientID %>").text(); var json1 = "{'id': '" + jsonid + "'}";

没有错误代码，ID：之后没有打印出来。 Default.aspx

There is no error code there is just nothing printed out after "ID:". Default.aspx

<script type="text/javascript" src="../Scripts/jquery-1.4.1.js"></script> <script type="text/javascript" src="ajax.googleapis/ajax/libs/jquery/1.11.1/jquery.min.js"></script> <script type="text/javascript"> function GetDateTime() { var jsonid =

（ ＃<％= TextBox1.ClientID％>）。text （）; var json1 = {'id' ：' + jsonid + '}; ("#<%= TextBox1.ClientID %>").text(); var json1 = "{'id': '" + jsonid + "'}";

.ajax （{ type： POST， url： Default.aspx / GetServerDateTime， data：json1， contentType： application / json; charset = utf-8， dataType： json，成功：函数（结果）{ alert（result.d）; }，错误： function （状态， ex）{ alert（ 错误代码：状态： + status + 例如： + ex）; } }）; } < / script> .ajax ({ type: "POST", url: "Default.aspx/GetServerDateTime", data: json1, contentType: "application/json; charset=utf-8", dataType: "json", success: function (result) { alert(result.d); }, error: function (status, ex) { alert("Error Code: Status: " + status + " Ex: " + ex); } }); } </script>

<asp:ScriptManager ID="ScriptManager1" runat="server"></asp:ScriptManager> <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox> <asp:Button ID="Button1" runat="server" Text="AJAX" OnClick="Button1_Click" />

Default.aspx.cs

Default.aspx.cs

protected void Button1_Click(object sender, EventArgs e) { ScriptManager.RegisterClientScriptBlock(this, this.GetType(), "javascript", "Javascript:GetDateTime();", true); } [System.Web.Services.WebMethod] public static string GetServerDateTime(string id) { string datetimeid1 = "ID: " + id + " Date&Time: " + DateTime.Now.ToString("MM/dd/yyyy hh:mm:ss tt"); return datetimeid1; }