我正在使用Visual Studio 2012构建Web应用程序。我试图将字数添加到文本框中。但是,在添加javascript代码和html代码之后。我收到上述错误。这是我的JavaScript代码代码:function validateLimit(obj, divID, maxchar) {objDiv = get_object(divID);if (this.id) obj = this;var remaningChar = maxchar - trimEnter(obj.value).length;if (objDiv.id) { objDiv.innerHTML = remaningChar + " characters left";}if (remaningChar <= 0) { obj.value = obj.value.substring(maxchar, 0); if (objDiv.id) { objDiv.innerHTML = "0 characters left"; } return false;}else{ return true; }}function get_object(id) {var object = null;if (document.layers) { object = document.layers[id];} else if (document.all) { object = document.all[id];} else if (document.getElementById) { object = document.getElementById(id);}return object;}function trimEnter(dataStr) {return dataStr.replace(/(\r\n|\r|\n)/g, "");}主页中的服务器代码<script type="text/javascript" src="js/JScript.js" ></script>ASPX代码,(HTML代码)<tr><th style="width: 595px; height: 135px;">Official Report :</th><td colspan="4" style="height: 135px"> <asp:TextBox ID="tbofficial" runat="server" Height="121px" TextMode="MultiLine" Width="878px" MaxLength="500" ToolTip="Summary:(500 characters)" onkeyup="return validateLimit(this, 'lblMsg1', 500)" ></asp:TextBox> <div id="lblMsg1">500 characters left</div><asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server" ControlToValidate="tbofficial" Display="Dynamic" SetFocusOnError="True">*</asp:RequiredFieldValidator> <br /> <asp:Label ID="lblmsg" runat="server"></asp:Label> <br /> <br /> <asp:Button ID="btnSubmit" runat="server" Text="Submit" OnClick="btnSubmit_Click" /> <asp:Button ID="btnClear" runat="server" Text="Clear" OnClick="btnClear_Click" /> </td></tr>
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