I would like to add a Logout link to my form so our employees can log out of the job they are working on.
The code behind in my application is simple:
protected void Logout_Click(object sender, EventArgs e) {
MasterPage.Logout();
}
A asp.Button I can code by wiring up the onClick event.
How would I call this method using a asp.Hyperlink control?
You're looking for the LinkButton control. That gets rendered as an a tag, and the page will be posted back to itself so that your OnClick function can be invoked.
The Hyperlink control renders a simple hyperlink, which won't allow you to wire it up to a click handler. Try the LinkButton control instead.
Replace Hyperlink with LinkButton.
Hyperlink has no server side events.
http://msdn.microsoft.com/en-us/library/system.web.ui.webcontrols.linkbutton.aspx
One thing I might suggest is to simply use CSS to style your actual-fact button to adopt the look of a link, as opposed to imitating a button from something that will likely be styled differently anyway.
When imitating a button, you are relying on the user having script enabled in their browser:
The LinkButton control renders JavaScript to the client browser. The
client browser must have JavaScript enabled for this control to
function properly.
Whereas a button that is a button will submit the form.
EDIT:
As per your comment, here is a quick example you could easily adapt:
CSS:
.hyperLinkButton
{
border:none;
background:none;
color:Navy;
cursor:pointer;
}
.hyperLinkButton:hover
{
text-decoration:underline;
}
Mark-up:
<asp:Button runat="server" CssClass="hyperLinkButton"
Text="Is it a HyperLink? Is it a LinkButton? No, it's a Button!" />
Related
I am developing a website using asp.net/C#
I want to create a button that can save user data then move to a div tag at the same page.
I already did the saving part, but how do I make the same button to navigate to a different div tag within the same page?
some people use the response.redirect method to navigate to a different page. I want to navigate to a div tag within the same page. For example:
Experience
after I press that it will take me to:
<div class="panel" id="experience">
I want to do the same but with button that can do both that and saving to a DB. As I said, I already did the saving part.
I tried this:
<asp:Button ID="Button1" runat="server" Text="Save & Continue" OnClientClick="#experience" OnClick="Button1_Click" />
But it didn't work.
any ideas? I am trying to access that div tag from code behind
If this is WebForms and you don't want to use javascript, then, after you do the save, you can do a Response.Redirect to the same url, but with the anchor tag, e.g. Response.Redirect("myPage.aspx#experience").
This really depends on the rest of your code though. I suggest posting the relevant parts of your code behind so that we can better see what you have done. Also, don't try to avoid javascript - it is too useful to avoid.
ASP.NET has a Focus method that can be applied to the following ASP.NET server controls:
Button
LinkButton
ImageButton
CheckBox
DropDownList
FileUpload
HyperLink
ListBox
RadioButton
TextBox
At the end of your Button1_Click event handler code-behind, add something along this lines of this:
TextBoxExperience.Focus();
Note - The TextBox control with ID of TextBoxExperience control would be inside of the experience DIV.
I am trying to put a Skip to Content link within my web application, but am having some issues.
Currently I have
<asp:LinkButton id="linkSkiptoContent" runat="server" OnClick="linkSKipToContent" Text="Skip to Content"></asp:LinkButton>
within the asp page
and an onClick event receiver
protected void linkSkipToContent_Click(object sender, EvenArgs e){
checkbox.Focus();
}
I am trying to avoid javascript because users have the option to disable it, which would render the link useless. And I know the checkbox.Focus() works properly, since I stuck it in the Page_Load() method and that worked at intented. However, what happens is clicking the link causes it to be focused after the onClick event completes.
Just print an anchor:
<a name="content" />
And link to it:
Go to content
Don't need JS or serverside stuff for that.
In my asp.net web page, there are a few of buttons and checkboxs. They all can cause postback.
Can I detect which control is clicked? Because I will add code for if clicked a button then do something.
I saw that some examples are done with Jquery.
Can we just do it in C#?
Thanks.
Why are you not just using the click behavior of the button:
ASPX
<asp:Button id="Button1"
Text="Click here for greeting..."
OnClick="GreetingBtn_Click"
runat="server"/>
CS
void GreetingBtn_Click(Object sender,EventArgs e)
{
}
reference here
You could check Request.Form["_EVENTTARGET"] for the control that generated the postback
well if each of the buttons submit a key value to the post or get parameters, and theyre all different it should be pretty easy! :)
localhost/home.html?button=clicked&link=selected
the above is an example of a get parameter url, you can use jquery to get those, or if its a post you would have access to them in a similar way...the previous page would have to have been a form though.
You could eventually do it by checking Request.Form["_EVENTTARGET"] but that is highly unusual and certainly not necessary.
Whatever you need to do, you can do it in the Click event handler of the given control.
You can set a server hidden control specifying the action (checkbox/textbox/button clicked) using javascript & retrieve that server control in page load to check its action & add your code for that action
Wondering if there is a way upon clicking on a hyper link to set drop downlist to visible in code behind or asp?
<asp:HyperLink ID="HyperLink2" runat="server">View More Workout Programs ยป</asp:HyperLink>
If you have to do it in code-behind, then use a LinkButton instead of a HyperLink. Then it will have a click event just like any button and in that click event you can set the other element to .Visible=true.
However, does this need to be done in code-behind? Keep in mind the difference in "visibility" between server-side and client-side code:
If set to .Visible=false on the server-side, the content is not delivered to the client at all.
If set to display:none on the client-side, the content is present and can be viewed in the page source, it's just not displayed by the browser.
In some cases, the former is needed for security purposes. But if it's just a matter of user experience then I would recommend showing/hiding the content entirely on the client-side so as to avoid post-backs that do nothing more than change element display properties.
For example (assuming jQuery):
<a id="toggler" href="#">Show the content</a>
<div id="hidden" style="display:none;">Content</div>
<script>
$(document).ready(function(){
$("#toggler").click(function(){
$("#hidden").show();
});
});
</script>
Use an asp:LinkButton instead of a hyperlink and handle the OnClick event. In the OnClick event, toggle myDropDownList.Visible depending on whether you want to show it or not.
You should implement that kind of feature in the client (javascript code) to improve user experience.
Anyway, you can use a Panel with Visibility=false and put Visibility=true in code behind when link is clicked. You would need to adjust the position of that panel with css to look like a dropdown.
You can try with JQuery : http://www.jquery.com
It will be something like
<script type="text/javascript">
$(document).ready(function(){
$("#<% =HyperLink2.ClientID %>").click(function() {
$("#<% =DropDownList1.ClientID %>").toggle();
});
});
</script>
If you need to send form back to the server, use asp:LinkButton instead and handle OnClick event on the server side. If you need to show drop down list on the client side, use javascript function with onclick client event to show or hide any section you want.
I have an ASP.NET page that uses a menu based on asp:LinkButton control in a Master page. When a user selects a menu item, an onclick handler calls a method in my C# code. The method it calls just does a Server.Transfer() to a new page. From what I have read, this is not supposed to change the URL displayed in the browser.
The problem is it that the URL changes in the browser as the user navigates the menu to different pages.
Here is an item in the menu:
<asp:LinkButton id="foo" runat="server" onclick="changeToHelp"><span>Help</span>
</asp:LinkButton>
In my C# code, I handle the event with a method like:
protected void changeToHelp(object sender, EventArgs e)
{
Server.Transfer("Help.aspx");
}
Any ideas how I can navigate through the menu without the browser's URL bar changing?
You can use iframes to make sure that URL of browser doesn't change.
In Page_Load you can change src attribute of iframe to help.aspx
Try Server.Execute("Help.aspx") instead. You can preserve the form if you need by using
Server.Execute("Help.aspx",true);