paging enhancement needed

hetaurhet 245 posts 267 karma points

Jun 05, 2012 @ 08:56

Razor

Hello

I have PagerHelper class created as follows which will show prev, next buttons and in between all page buttons.

e.g. Prev - 1 - 2 -3 - 4 - 5 - 6 -7 - Next

But I now need some thing like ... Prev - 1 - 2 -3 - ... - Next

On clicking "..." it should show next 3 numbers say for e.g. Prev - 4 - 5 - 6 - ... - Next

My current code is as follows....

public class PagerHelper
 {
     @helper GeneratePaging(int currentPage, int totalPages)
       {

           string url = HttpContext.Current.Request.Url.AbsoluteUri;
         
          string link = "/";

          if (totalPages > 1)
            {
             //<ul class="paging">
               if(currentPage-1 > 0)
              {
               int prev_p = currentPage-1;

                 link = GlobalRazorHelpers.AddOrReplaceParam(url, "page", prev_p.ToString());
                  //<li>
                  <a class="pager-btn" href="@link">Prev</a>
                //</li>
               }
             else
              {
              <span class="aspNetDisabled pager-btn">Prev</span>
               }
             for (int p = 1; p < totalPages + 1; p++)
               {
                 //string selected = (p == currentPage) ? "selected" : String.Empty;
                   link = GlobalRazorHelpers.AddOrReplaceParam(url, "page", p.ToString());
                   if(p == currentPage)
                  {
                     
                   //<li>
                     <a class="pager-btn current-pager-btn" href="@link" title="Go to page @p of results">@p</a>
                    //</li> 
                   }
                 else
                  {
                  //<li>
                     <a class="pager-btn" href="@link" title="Go to page @p of results">@p</a>
                  //</li> 
                   }
             }
             if(currentPage < totalPages)
               {
               int next_p = currentPage+1;

                 link = GlobalRazorHelpers.AddOrReplaceParam(url, "page", next_p.ToString());

                //<li>
                  <a class="pager-btn" href="@link">Next</a>
                //</li>
               }
             else
              {
                 <span class="aspNetDisabled pager-btn">Next</span>
                }
             //</ul>
         }
     }
 }

Also, I have one more file Pager.cs as follows to return nodes.

public static class Pager
    {
        public static DynamicNodeList Paged(this DynamicNodeList nodes, int page, int pageSize)
        {
            return new DynamicNodeList(nodes.Items.Skip((page - 1) * pageSize).Take(pageSize));
        }

    }

So, can anyone tell now how to implement the same?

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michael Netonline 18 posts 62 karma points

Jun 07, 2012 @ 12:45

like?

@if (skipPage <= totalPages)

{

}

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hetaurhet 245 posts 267 karma points

Jun 09, 2012 @ 06:32

Thank you for the response. It was helpful. But I made few changes and finally following code works fine for me.

public class PagerHelper
 {
     @helper GeneratePaging(int currentPage, int totalPages)
            {

            string url = HttpContext.Current.Request.Url.AbsoluteUri;

            string link = "/";

            int ButtonsCount = 3;

            if (totalPages > 1)
            {
                int cur_page = currentPage - 1;
                //finding the first linkbutton to be shown in the current display
                int start = cur_page - (cur_page % ButtonsCount);

                //finding the last linkbutton to be shown in the current display
                int end = cur_page + (ButtonsCount - (cur_page % ButtonsCount));

                if (currentPage-1 > 0)
                {
                    //specify the position of prev button changed to -1
                    
                    int prev_p = currentPage - 1;

                    link = GlobalRazorHelpers.AddOrReplaceParam(url, "page", prev_p.ToString());
                
                  <a class="pager-btn" href="@link">Prev</a>
                            
                    
                }

                if (start > ButtonsCount - 1)
                {

                    int dot = start - 1;
                    link = GlobalRazorHelpers.AddOrReplaceParam(url, "page", dot.ToString());
                    <a class="pager-btn" href="@link">...</a>
                
                }

                int i = 0, j = 0,page=0;

                for (i = start; i < end; i++)
                {

                    if (i < totalPages)
                    {
                        if (i+1 == currentPage)
                        {
                            page = i + 1;
                            link = GlobalRazorHelpers.AddOrReplaceParam(url, "page", page.ToString());
                            <a class="pager-btn current-pager-btn" href="@link">@page</a>
                        }
                        else
                        {
                            page = i + 1;
                            link = GlobalRazorHelpers.AddOrReplaceParam(url, "page", page.ToString());
                            <a class="pager-btn" href="@link">@page</a>
                                
                        }
                    }
                    j++;
                }

                if (totalPages > end)
                {

                    int dot2 = i + 1;
                    link = GlobalRazorHelpers.AddOrReplaceParam(url, "page", dot2.ToString());
                
                  <a class="pager-btn" href="@link">...</a>

                }
                
                //condition added to keep the next button till the click of last button
                if (currentPage < totalPages)
                {
                    int next_p = currentPage + 1;

                    link = GlobalRazorHelpers.AddOrReplaceParam(url, "page", next_p.ToString());
             
                  <a class="pager-btn" href="@link">Next</a>
                }


            }
      }
 }

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paging enhancement needed