在我的页面中,我有一个登录控件:
<asp:Login ID="EMSLogin" runat="server" OnAuthenticate="EMSLogin_Authenticate">
<LayoutTemplate>
<asp:Panel ID="Panel1" runat="server" CssClass="wrapper">
<asp:Panel ID="Panel2" runat="server" CssClass="holder">
<asp:Panel ID="Panel3" runat="server" CssClass="loginBox one_edge_shadow">
<h1>
Login Credentials</h1>
<asp:Panel ID="Panel4" runat="server" CssClass="name topmargin">
<asp:Panel ID="Panel5" runat="server" CssClass="label">
<asp:Label ID="UserNameLabel" runat="server" AssociatedControlID="UserName">User Name:</asp:Label>
</asp:Panel>
<asp:Panel ID="Panel6" runat="server" CssClass="textBox">
<telerik:RadTextBox ID="UserName" runat="server" Height="16px" Width="165px" Font-Size="14px"
Font-Names="Arial Sans-Serif" ToolTip="Enter your valid login name" />
<asp:RequiredFieldValidator ID="UserNameRequired" runat="server" ControlToValidate="UserName"
ValidationGroup="EMSLogin">*</asp:RequiredFieldValidator>
</asp:Panel>
<br class="clearfix" />
</asp:Panel>
<asp:Panel ID="Panel7" runat="server" CssClass="name topmargin">
<asp:Panel ID="Panel8" runat="server" CssClass="label">
<asp:Label ID="PasswordLabel" runat="server" AssociatedControlID="Password">Password:</asp:Label>
</asp:Panel>
<asp:Panel ID="Panel9" runat="server" CssClass="textBox">
<telerik:RadTextBox ID="Password" runat="server" TextMode="Password" Height="16px"
Width="165px" Font-Size="14px" Font-Names="Arial Sans-Serif" ToolTip="Enter your valid password" />
<asp:RequiredFieldValidator ID="PasswordRequired" runat="server" ControlToValidate="Password"
ValidationGroup="EMSLogin">*</asp:RequiredFieldValidator>
</asp:Panel>
<br class="clearfix" />
<telerik:RadButton ID="LoginButton" runat="server" CommandName="Login" Text="Log In"
CssClass="loginButton" Font-Size="14px" Width="100px" ValidationGroup="EMSLogin"
ToolTip="Click to log in" />
</asp:Panel>
</asp:Panel>
</asp:Panel>
</asp:Panel>
</LayoutTemplate>
</asp:Login>
我已经将ScriptManager控件添加到页面中。
现在
EMSLogin_Authenticate
是:protected void EMSLogin_Authenticate(object sender, AuthenticateEventArgs e) {
RadTextBox UserName = EMSLogin.FindControl("UserName") as RadTextBox;
RadTextBox Password = EMSLogin.FindControl("Password") as RadTextBox;
if (Membership.ValidateUser(UserName.Text, Password.Text)) {
FormsAuthentication.RedirectFromLoginPage(UserName.Text, false);
} else {
Page.ClientScript.RegisterClientScriptBlock(typeof(ScriptManager), "CallShowDialog", "showDialog();", true);
}
}
JavaScript方法
showDialog();
在页面中定义:<script type="text/javascript">
function showDialog() {
$(".jym").dialog("open");
return false;
}
</script>
但这不是召唤。
showDialog()
没什么问题,因为我已经在锚标记的onclick方法上调用了它。它显示对话框。如果我在后面的代码中用alert()
代替showDialog()
,那么我会看到警报消息。我做错了什么?这样无法调用JavaScript吗?
这也不起作用:
System.Web.UI.ScriptManager.RegisterClientScriptBlock(this.Page, typeof(RadButton), Guid.NewGuid().ToString(), "showDialog();", true);
最佳答案
RegisterClientScriptBlock
将代码放在文档之前,因此在您调用函数时,尚没有类jym
的元素。您可以添加alert($(".jym").length)
确认,您将看到0。
为什么不从客户端调用该函数?
$(document).ready(function() {
showDialog();
});
如果需要服务器端,只需将代码更改为:
if (Membership.ValidateUser(UserName.Text, Password.Text)) {
FormsAuthentication.RedirectFromLoginPage(UserName.Text, false);
} else {
Page.ClientScript.RegisterClientScriptBlock(typeof(ScriptManager), "CallShowDialog", "$(document).ready(function() { showDialog(); });", true);
}
关于c# - JavaScript方法未从后端调用,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/9860074/