如何在JSON字符串中使用TextBox [英] How do I use a TextBox in a JSON string

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="http://ajax.googleapis.com/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

（ < span class =code-string>＃<％= 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="http://ajax.googleapis.com/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;
}

这篇关于如何在JSON字符串中使用TextBox的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！