My code is:
我的代码是:
<body>
<script type="text/javascript">
function change() {
alert("Hello");
}
</script>
<form id="form1" runat="server">
<div>
<asp:Button ID="Button1" runat="server" Text="Button" OnClick="change"/>
</div>
</form>
</body>
The error I get is: CS1061: 'ASP.webform1_aspx' does not contain a definition for 'change' and no extension method 'change' accepting a first argument of type 'ASP.webform1_aspx' could be found.
我得到的错误是:CS1061:'ASP.webform1_aspx'不包含'change'的定义,并且没有可以找到接受'ASP.webform1_aspx'类型的第一个参数的扩展方法'change'。
What is the problem?
问题是什么?
3 个解决方案
#1
1
It should be OnClientClick:-
它应该是OnClientClick: -
<asp:Button ID="Button1" runat="server" Text="Button" OnClientClick="return change();"/>
OnClick event is used to bind server side method on button click.
OnClick事件用于在按钮单击时绑定服务器端方法。
<script type="text/javascript">
function change() {
alert("Hello");
return false;
}
</script>
Not that the return false will stop the postback cause by the button.
And for this you should also mention return before your function call on button like OnClientClick="return change();"
并不是返回false将停止按钮的回发原因。为此你还应该在函数调用onClientClick =“return change();”之前提到return。
#2
3
It should be OnClientClick:-
它应该是OnClientClick: -
<asp:Button ID="Button1" runat="server" Text="Button" OnClientClick="change"/>
OnClick event is used to bind server side method on button click.
OnClick事件用于在按钮单击时绑定服务器端方法。
#3
1
OnClick="change" it means that you should Create Method name as change on server Side
OnClick =“更改”意味着您应该在服务器端创建方法名称作为更改
Some thing like this
有点像这样
protected void change(object sender,EventArgs e)
{
}
On Server Side
在服务器端
if(!Page.IsPostBack)
{
Button1.Attributes.Add("onclick","change();")
}
on .aspx
<asp:Button ID="Button1" runat="server" Text="Button" />
#1
1
It should be OnClientClick:-
它应该是OnClientClick: -
<asp:Button ID="Button1" runat="server" Text="Button" OnClientClick="return change();"/>
OnClick event is used to bind server side method on button click.
OnClick事件用于在按钮单击时绑定服务器端方法。
<script type="text/javascript">
function change() {
alert("Hello");
return false;
}
</script>
Not that the return false will stop the postback cause by the button.
And for this you should also mention return before your function call on button like OnClientClick="return change();"
并不是返回false将停止按钮的回发原因。为此你还应该在函数调用onClientClick =“return change();”之前提到return。
#2
3
It should be OnClientClick:-
它应该是OnClientClick: -
<asp:Button ID="Button1" runat="server" Text="Button" OnClientClick="change"/>
OnClick event is used to bind server side method on button click.
OnClick事件用于在按钮单击时绑定服务器端方法。
#3
1
OnClick="change" it means that you should Create Method name as change on server Side
OnClick =“更改”意味着您应该在服务器端创建方法名称作为更改
Some thing like this
有点像这样
protected void change(object sender,EventArgs e)
{
}
On Server Side
在服务器端
if(!Page.IsPostBack)
{
Button1.Attributes.Add("onclick","change();")
}
on .aspx
<asp:Button ID="Button1" runat="server" Text="Button" />