CODEWITHSUNDEEP
asp.net
user2514893
user2514893

Reputation: 3

asp.net loading page based on previous link

I have a page with few images. Also have a page where content based on drop down link is pulled from db. I currently have this code for !ispostback

private void FillPage()
    {
        ArrayList categoryList = new ArrayList();

        if (!IsPostBack)
        {
            categoryList = ConnectionClass.GetMenuByCategory("Appetizer");
        }
        else
        {
            categoryList = ConnectionClass.GetMenuByCategory(DropDownList1.SelectedValue);
        }

is is possible based on what img is clicked to change the inital getmenubycategory from appetizer to what ever img is selected. Thanks

Upvotes: 0

Views: 171

Answers (2)

Karl Anderson
Karl Anderson

Reputation: 34846

Try this:

private void FillPage()
    {
        ArrayList categoryList = new ArrayList();

        if (!IsPostBack)
        {
             if (Request.QueryString["category"] != null) 
             {
                 string categoryName = Request.QueryString["category"] as string;

                 if(!String.IsNullOrEmpty(categoryName)
                 {
                     switch(categoryName)
                     {
                         case "Entree":
                             categoryList = ConnectionClass.GetMenuByCategory("Entree");
                             break;
                         case "Dessert":
                             categoryList = ConnectionClass.GetMenuByCategory("Dessert");
                             break;
                         default:
                             categoryList = ConnectionClass.GetMenuByCategory("Appetizer");
                             break;
                     }
                 }
            }
        }
        else
        {
             categoryList = ConnectionClass.GetMenuByCategory(DropDownList1.SelectedValue);
        }

Upvotes: 1

Majid
Majid

Reputation: 14253

You can use GET method:

 <a href="go.aspx?img=1"><img src="img1.jpg/></a>
 <a href="go.aspx?img=2"><img src="img2.jpg/></a>

and in code behind:

if(!String.IsNullOrEmpty(Request.QueryString["img"]))
    if(Request.QueryString["img"]=="1")
        //some initializing
    else
        //another initializing

Upvotes: 0

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