I have about 50 or so links similar to the following:
<asp:TableCell Font-Bold="true"><asp:Hyperlink ID="Hyperlink9" runat="server" CssClass="Hyptext" Name="HypLink1" TextDecorations="None" NavigateUrl="~/Folde1/Second.aspx" Text="Case Study 12 "/></asp:TableCell>
What I like to do is when the user clicks on the hyperlink, I like to validate that the user has permission to view the links. If so, they can view it. If not, a pop-up will come information them that they need to sign in order to view the links.
Questions
1) What is the best way when the user clicks on the HyperLink to do a server side click event. From what I seen,only a client side even can be done with the asp:Hyperlink. I like to then validate if they have permissions. If not, throw a pop-up window.
You should not do that. Instead, you should...
On server side, check to see if user is logged in...
if not logged in, provide login link and text "Login to see case studies".
if already logged in, provide links user has access to.
You need an onClick tag that points to a method. Create one event handler function and point all your hyperlinks to it. Once the event handler fires, cast the sender to Hyperlink and go from there.
Related
I am new to asp.net and i need to know
whats the differences between a button with response.redirect behind it
and a hyper link ? they get you both to the page but one is server side while the other is not
is it the only difference
and when it is best to use either one of them
A hyperlink render a link to the given NavigateUrl in the browser. When the user clicks on it, the browser directly goes to the destination.
A button with redirect renders a button which does a postback using javascript. When the user clicks on it, a postback is done to the same page and the browser is instructed to go to another URL using Response.Redirect.
The main difference is that the second solution loads the same page again, while the first solution goes directly to the destination. With a button you can run some code before redirecting, or redirect to a different URL based on the information in the postback. Because it loads the original page before loading the destination page, it is a bit slower.
With a hyperlink, the visitor will see where the hyperlink leads to. With a button you can not see this. A hyperlink is thus better for search engines, because they will follow a hyperlink and will not follow a button.
If you know the URL in advance and you do not want to run extra code when the user clicks on something, use a hyperlink. Else, use a button.
A hyperlink is a link which will redirect you somewhere in the same tab or in a new tab when you click on it.
In case of response.sendredirect() the user's browser is redirected to a link sent by the server depending on your business logic.(the link may belong to some other domain).
hope that helps
Hyperlink control
This is server control use for navigation to another page specified in the NavigateURL property. Hyperlink control doesn’t expose any server side event.
Response.Redirect method
This method is used to navigate to another page from code. You can use this method to navigate from a Linkbutton or ImageButton control.
i have a problem in page navigating. please help me to solve out.
in one asp.net page forexample Page1.aspx i have dropdown when we select an item in dropdown that would display in a label. Then we navigate to another page from page1.aspx to page2.aspx by clicking linkbutton in page1.aspx. Again if i come to page1.aspx that previously selected value of dropdown should appear in label.
please help me.
HTTP is a stateless protocol. This means that it'll forget anything that you don't tell it to specifically ask it to.
When going back to Page1.aspx, your program has no idea what was selected before.
In terms of persisting user choices, you should look into storing them in Session ( or alternatively, cookies ) and checking for a pre-existing choice when returning to Page1.aspx.
If you have a saved value for the user at that point, you'll be able to set the correct value during the Page_Load event.
If it is like a wizard, I suggest you use a wizard control in the same page.
here is an example,
https://web.archive.org/web/20211020103244/https://www.4guysfromrolla.com/articles/061406-1.aspx
I have grid in my ASP.NET page (actualy it's Telerik RadGrid). There is GridButtonColumn, and OnItemCommand event is called when user clicks the link in this cell.
Right now, after user clicks, some data is prepared in the background and sent by e-mail. At the end of my method I want to display to user, that operation was succeeded. Any ideas, how can I reach that goal? I cannot use JavaScript in this event (there is no OnClick event or ClientScript property), and I want user to stay on current page, so also no Response.Redirect can be used.
Please, share some ideas, how to inform user, that operation was successful.
Javascript is the best option , To display Alert or Popup to user.
You can also do one thing , Place One DIV on Header of grid and give some style to DIV and display your message on that div.
On one of my ASP.NET pages I have several asp:textbox fields. On this page there is a "confirm order" button with an external url set in its "PostBackUrl" property.
This works well, and the data is sent to the external site. Here comes the question; how do I know that the user clicked the "confirm order" button on "my side?" (I need this to update my order-status field). There is off course no postback happening on my page becasue the form is submitted to the external site.
Maybe it's possible to use some sort of jQuery to hook on the onclick-event that will call a page that will update my order-status?
You'll need to hook into the buttons onClick event, perform a client-side callback to either a web service or Page Method (depending on your preferred setup) on your server to track the click, before allowing the form submission to continue.
Better to set it up so that the button does perform a postback. Then in your click handler you can update your order-status, and then post the data to the third party.
I want to make a link on a page that when clicked, would open another page(tab). I have already done that.
Now, when the user clicks a link in the second page, I want the page to close, and a field in the first page to be updated with what the user selected in the second page.
As an example, I would like to achieve the same functionality as the Yahoo Mail address book. When you write a message, you click the "To:" field, the address book opens in a new window, you select the people you want to send the mail to, and then when you click "Done", those people's addresses are automatically added to the "To:" field in the first page.
Please give me some suggestions on how to achieve such a feature.
Thanks in advance
You'll need to use JavaScript to open and close the window. When the second window closes, handle the event and then you can use window.parent.document to find and access fields on the parent window.