I'm encountering an issue with link buttons on my master page. I want to dynamically add the CSS class "Active" after clicking each link button and postback URLs.
<asp:LinkButton ID="Linkbutton1" runat="server" PostBackUrl="/News.aspx?lang=1"
Text="News" OnClick="Linkbutton1_Click">
</asp:LinkButton>
Linkbutton 1
Linkbutton 2 - class "active"
Linkbutton 3
I attempted to add the class using the link button's onclick event, but it gets removed after the postback occurs.
Make sure to include the following code snippet in your Linkbutton1_Click method:
Linkbutton1.CssClass = "active";
For more information, check out this helpful article on MSDN: MSDN Article.
To implement functionality in the code behind, cookies can be utilized:
Inside the Linkbutton1_Click method:
Response.Cookies["Linkbutton1-cssClass"].Value = "active";
Within the Page_Load method:
if(Request.Cookies["Linkbutton1-cssClass"] != null)
Linkbutton1.CssClass = Server.HtmlEncode(Request.Cookies["Linkbutton1-cssClass"].Value);
Finally, a foreach loop can be used to handle all LinkButtons.
Call a JavaScript function changestyle(SenderID) when clicking on a link button
<script type="javascript">
var previousStyle = "";
function changestyle(SenderID)
{
var LinkButtonActive = document.getElementById(senderID);
LinkButtonActive.className = "subTabActive";
if (previousStyle != "" && previousStyle != id)
{
var previousElement = document.getElementById(previousStyle);
previousElement.className = "subTabInactive";
}
previousStyle = SenderID;
}
</script>
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