ReferenceError: $get is not defined using jquery in asp.net vs 2010
Question
Struggling to wire up jquery in a new VS 2010 asp.net project.
Created a new Web App Project (with master page & other defaults) Drug jquery from the Scripts folder into Site.Master file and got:
<script src="Scripts/jquery-1.4.1.min.js" type="text/javascript"></script>
(between and ) Added a textbox and this button to Default.aspx:
<asp:Button ID="Button1" runat="server" Text="Button" OnClientClick="debugger; $get('TextBox1').value = 'hello';" />
Hit F5, which launched the app and opened the page in firefox Enabled firebug. On the script tab it lists jquery-1.4.1.min and shows it's contents. Hit the button, which opens the debugger paused on the 'debugger;' statement Clicked to step $get() and got the message: ReferenceError $get is not defined.
Any help greatly appreciated. Everything looking right until the last click.
3 answers
solution1
0 2016-07-19 04:11:50
I think what you need to do is something like:
$("input[name='TextBox1']").val("hello")
I am assuming your text box field has a name TextBox1 but you could just replace name with whatever attribute you have set to TextBox1 .
solution2
0 ACCPTED 2016-07-19 04:15:25
You need to read the jQuery documentation. $.get is used to perform an HTTP GET request from the server.If you need to set a value of TextBox on button click you should do something like this:
<head runat="server">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.3/jquery.min.js"></script>
<script type="text/javascript">
function setValue() {
$("#" + "<%: TextBox1.ClientID %>").val("Hello");
return false;
}
</script>
</head>
<body>
<form id="form1" runat="server">
<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
<asp:Button ID="Button1" runat="server" Text="Button" OnClientClick="return setValue()" />
</form>
</body>
solution3
0 2016-07-19 05:07:50
First of all jQuery don't have any $get function.
If I'm right you want to get the some textbox with ID that equals TextBox1 and update its value. So if you use server-side <asp:TextBox ID="TextBox1" runat="server"/> I think you have two possible solutions:
1.Save TextBox1 's ClientID into JavaScript variable and than use it:
<script>
var id = "<%=TextBox1.ClientID%>";
function onClick() {
debugger;
$('#' + id).val('hello');
return false;
};
</script>
<asp:TextBox runat="server" ID="TextBox1" />
<asp:Button ID="Button1" runat="server" OnClientClick="return onClick()" />
2.Change your server-side control <asp:TextBox .../> to client-side control <input id="TextBox1" > :
<script>
function onClick() {
debugger;
$('#TextBox1').val('hello');
return false;
}
</script>
<input id="TextBox1"/>
<asp:Button ID="Button1" runat="server" Text="Button" onClientClick="return onClick()" />
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