CODEWITHSUNDEEP
c#asp.nethyperlink
Apostrofix
Apostrofix

Reputation: 2180

Dynamically created hyperlinks to call a c# function

I have a function that connects to mssql database and and returns a list of stories - those stories are put in Hyperlinks. Here is my code for that:

public void getSocialStories()
{
    string user = getSelectedUser();
    List<SocialStory> stories = new List<SocialStory>();
    stories = functions.getSocialStories(user);

    foreach (SocialStory story in stories)
    {
        HyperLink storyLink = new HyperLink();
        storyLink.NavigateUrl = "http://google.com";

        storyLink.Text = story.Social_story_name;
        ph.Controls.Add(new LiteralControl("<br />"));
        ph.Controls.Add(storyLink);
    }
}

So far so good, but now I want when a hyperlink is clicked to call a function that asks the database to return the corresponding pictures for that story. All that I need to do is something like calling function(story_id). My List<SocialStory> contains SocialStory objects, which have the story_id parameter. How can I call a function with the story_id as a parameter?

Upvotes: 0

Views: 2026

Answers (2)

ivan_pozdeev
ivan_pozdeev

Reputation: 35998

There's no C# at the client's side so you need to make an AJAX call or otherwise query the server somehow.

How to call server side function from client side by passing the argument also? : The Official Microsoft ASP.NET Forums lists a few possible solutions:

They all are based on the same principle: the client sends a second request which invokes a somewhat independent piece of code. They are also considered a lighter alternative to ASMX.

Upvotes: 1

Gregor Primar
Gregor Primar

Reputation: 6805

You can use dynamic handler (ashx) to display images inside a tag. So you will need to compose literal control something like this:

<a href="yourStoryLink"><img src="StoryImageHandler.ashx?storyId=yourStoryId" /></a>

Check ASP.NET ASHX Handler to get basic instructions for creating your StoryImageHandler.ashx.

Upvotes: 2

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