mpl  27
New Member
Hi,
i have an ascx file(web control file ) haivng code like
<asp:LinkButton ID="col" runat="server" Text='<%# Eval("8Y") %>' OnClick="ColSelected" />
now i am using code behind implmentation for ColSelected.I want to move
this to a javascript.Can I write script tags in ascx file ?if yes how ? and how to link Onclick with the script inside the ascx file
regards
mp
7 11882  Plater 7,872
Recognized Expert Expert
I believe using onmouseclick= will tell it to point to a javascript function.
Hi,
i have an ascx file(web control file ) haivng code like
<asp:LinkButton ID="col" runat="server" Text='<%# Eval("8Y") %>' OnClick="ColSelected" />
now i am using code behind implmentation for ColSelected.I want to move
this to a javascript.Can I write script tags in ascx file ?if yes how ? and how to link Onclick with the script inside the ascx file
regards
mp
yes you can,
try:
javascript : - onclick="javascript:whateverFunction();"
thus, some asp .net controls seem to have issues with events that are called the same:
what i mean is, asp .net recognizes OnClick, not onclick, and for some reason it "overwrites" it and it doesnt pay attention to the onclick on the html code, so the client side onclick does nothing(on .net controls, if you use pure html elements there is no problem).
so what i do to workaround this is, register the attribute serverside. on the load or anywhere else
C#: - col.Attributes.Add("onclick", "javascipt:whateverFunction()");
and it fixes this issue, done it a million times, so i know it works
mpl 27
New Member
when i put this code in the page load of the code behind
col.Attributes.Add("onclick", "javascipt:whateverFunction()");
i get error 'col is not declared '.why the ID not being in the scope?
In the ascx file I added
<asp:LinkButton ID="col" runat="server" Text='<%# Eval("1Y") %>' OnClick=" javascript:whateverFunction();"/>
but an underline comes in as above .why ?
thanks
mp
yes you can,
try:
javascript:
- onclick="javascript:whateverFunction();"
thus, some asp .net controls seem to have issues with events that are called the same:
what i mean is, asp .net recognizes OnClick, not onclick, and for some reason it "overwrites" it and it doesnt pay attention to the onclick on the html code, so the client side onclick does nothing(on .net controls, if you use pure html elements there is no problem).
so what i do to workaround this is, register the attribute serverside. on the load or anywhere else
C#:
- col.Attributes.Add("onclick", "javascipt:whateverFunction()");
and it fixes this issue, done it a million times, so i know it works
Plater 7,872
Recognized Expert Expert
if there is an error in the aspx side (<asp:LinkButton ID="col" runat="server" Text='<%# Eval("1Y") %>' />) the object might not show up in the backend code page.
when i put this code in the page load of the code behind
col.Attributes.Add("onclick", "javascipt:whateverFunction()");
i get error 'col is not declared '.why the ID not being in the scope?
In the ascx file I added
<asp:LinkButton ID="col" runat="server" Text='<%# Eval("1Y") %>' OnClick="javascript:whateverFunction();"/>
but an underline comes in as above .why ?
thanks
mp
when i explained the whole "issue" paragraph i forgot to mention that if you do the "workaround" thing, there is no need to add the attribute in the html, since you already are doing that server side.
one more thing, remember that since a web user control, is just a chunk of html, any javascript should be in the parent form using that user control.
so the parent aspx would look like
HTML: - .
-
.
-
.
-
<script language="javascript">
-
<!--
-
function whateverFunction()
-
{
-
alert('Hello World!')
-
}
-
//-->
-
</script>
-
</HEAD>
-
<body MS_POSITIONING="GridLayout">
-
<form id="Form1" method="post" runat="server">
-
<uc1:WebUserControl1 id="WebUserControl11" runat="server"></uc1:WebUserControl1>
-
</form>
-
</body>
-
</HTML>
the user control aspx:
HTML: - <asp:LinkButton id="LinkButton1" runat="server">LinkButton</asp:LinkButton>
you can see there are no modifications on the controls html tag
now the user controls code behind
c#: - private void Page_Load(object sender, System.EventArgs e)
-
{
-
this.LinkButton1.Attributes.Add("onclick", "javascript:whateverFunction()");
-
}
To answer your second question, the visual studio text editor for some reason recognizes that as a link, so it underlines it, if you press ctrl+click, itll try to browse to it, nothing important really, so just ignore it.
mpl 27
New Member
so i should move the script from ascx file to the aspx file ?
reggards
melbin
when i explained the whole "issue" paragraph i forgot to mention that if you do the "workaround" thing, there is no need to add the attribute in the html, since you already are doing that server side.
one more thing, remember that since a web user control, is just a chunk of html, any javascript should be in the parent form using that user control.
so the parent aspx would look like
HTML:
- .
-
.
-
.
-
<script language="javascript">
-
<!--
-
function whateverFunction()
-
{
-
alert('Hello World!')
-
}
-
//-->
-
</script>
-
</HEAD>
-
<body MS_POSITIONING="GridLayout">
-
<form id="Form1" method="post" runat="server">
-
<uc1:WebUserControl1 id="WebUserControl11" runat="server"></uc1:WebUserControl1>
-
</form>
-
</body>
-
</HTML>
the user control aspx:
HTML:
- <asp:LinkButton id="LinkButton1" runat="server">LinkButton</asp:LinkButton>
you can see there are no modifications on the controls html tag
now the user controls code behind
c#:
- private void Page_Load(object sender, System.EventArgs e)
-
{
-
this.LinkButton1.Attributes.Add("onclick", "javascript:whateverFunction()");
-
}
To answer your second question, the visual studio text editor for some reason recognizes that as a link, so it underlines it, if you press ctrl+click, itll try to browse to it, nothing important really, so just ignore it.
so i should move the script from ascx file to the aspx file ?
reggards
melbin
yes.
try the example i posted before...
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