TagCloud size problem

后端未结

关注

 3  2058

I am using code to display a tag cloud based on percentage values. The first time a tag is added to my db, it appears large, and then shrinks relative to other tags (the more ti

相关标签:

3条回答

[愿得一人]

2021-01-29 00:09

Based on what you have shown the tag should already appear small to begin with - tagGroup.Count() would be 1 and GetTagSize will return "small"

Something must be overriding this code to force the font size large - just take that out and I think you should get what you have asked for.

0 讨论(0)
发布评论:

提交评论
- 加载中...

日久生厌

2021-01-29 00:10

I simplified your code to run it on my box. And everything seems to be OK. Here you can see my test page:

Test.aspx:

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Test.aspx.cs" Inherits="WebApplication2.Test" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>

    <style type="text/css">
        .xx-large
        {
            font-size: 30px;
        }

        .x-large
        {
            font-size: 25px;
        }

        .large
        {
            font-size: 20px;
        }

        .medium
        {
            font-size: 15px;
        }

        .small
        {
            font-size: 10px;
        }
        .tagCloud
        {
            padding: 20px;
        }
    </style>
</head>
<body>
    <form id="form1" runat="server">
    <div class=tagCloud>
        <asp:ListView ID="ListView1" runat="server">
            <ItemTemplate>
                <span class='<%# GetTagSize((double)Eval("weight")) %>'>
                    <%# Eval("Tag") %></span>
            </ItemTemplate>
        </asp:ListView>
    </div>
    <div class=tagCloud>
        <asp:ListView ID="ListView2" runat="server">
            <ItemTemplate>
                <span class='<%# GetTagSize((double)Eval("weight")) %>'>
                    <%# Eval("Tag") %></span>
            </ItemTemplate>
        </asp:ListView>
    </div>
    </form>
</body>
</html>

Test.aspx.cs:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace WebApplication2
{
    public partial class Test : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            BindTagCloud();
        }

        public class Race
        {
            public string GrandPrix { get; set; }
            public string TeamWinner { get; set; }
            public int Year { get; set; }
        }

        public IEnumerable<Race> GetRaces()
        {
            yield return new Race { GrandPrix = "Australia", TeamWinner = "Ferrari", Year = 2002 };
            yield return new Race { GrandPrix = "Malaysia", TeamWinner = "Williams-BMW", Year = 2002 };
            yield return new Race { GrandPrix = "Brazil", TeamWinner = "Ferrari", Year = 2002 };
            yield return new Race { GrandPrix = "San Marino", TeamWinner = "Ferrari", Year = 2002 };
            yield return new Race { GrandPrix = "Spain", TeamWinner = "Ferrari", Year = 2002 };
            yield return new Race { GrandPrix = "Austria", TeamWinner = "Ferrari", Year = 2002 };
            yield return new Race { GrandPrix = "Monaco", TeamWinner = "McLaren-Mercedes", Year = 2002 };
            yield return new Race { GrandPrix = "Canada", TeamWinner = "Ferrari", Year = 2002 };
            yield return new Race { GrandPrix = "Europe", TeamWinner = "Ferrari", Year = 2002 };
            yield return new Race { GrandPrix = "Great Britain", TeamWinner = "Ferrari", Year = 2002 };
            yield return new Race { GrandPrix = "France", TeamWinner = "Ferrari", Year = 2002 };
            yield return new Race { GrandPrix = "Germany", TeamWinner = "Ferrari", Year = 2002 };
            yield return new Race { GrandPrix = "Hungary", TeamWinner = "Ferrari", Year = 2002 };
            yield return new Race { GrandPrix = "Belgium", TeamWinner = "Ferrari", Year = 2002 };
            yield return new Race { GrandPrix = "Italy", TeamWinner = "Ferrari", Year = 2002 };
            yield return new Race { GrandPrix = "United States", TeamWinner = "Ferrari", Year = 2002 };
            yield return new Race { GrandPrix = "Japan", TeamWinner = "Ferrari", Year = 2002 };

            yield return new Race { GrandPrix = "Australia", TeamWinner = "McLaren-Mercedes", Year = 2003 };
            yield return new Race { GrandPrix = "Malaysia", TeamWinner = "McLaren-Mercedes", Year = 2003 };
            yield return new Race { GrandPrix = "Brazil", TeamWinner = "Jordan-Ford", Year = 2003 };
            yield return new Race { GrandPrix = "San Marino", TeamWinner = "Ferrari", Year = 2003 };
            yield return new Race { GrandPrix = "Spain", TeamWinner = "Ferrari", Year = 2003 };
            yield return new Race { GrandPrix = "Austria", TeamWinner = "Ferrari", Year = 2003 };
            yield return new Race { GrandPrix = "Monaco", TeamWinner = "Williams-BMW", Year = 2003 };
            yield return new Race { GrandPrix = "Canada", TeamWinner = "Ferrari", Year = 2003 };
            yield return new Race { GrandPrix = "Europe", TeamWinner = "Williams-BMW", Year = 2003 };
            yield return new Race { GrandPrix = "France", TeamWinner = "Williams-BMW", Year = 2003 };
            yield return new Race { GrandPrix = "Great Britain", TeamWinner = "Ferrari", Year = 2003 };
            yield return new Race { GrandPrix = "Germany", TeamWinner = "Williams-BMW", Year = 2003 };
            yield return new Race { GrandPrix = "Hungary", TeamWinner = "Renault", Year = 2003 };
            yield return new Race { GrandPrix = "Italy", TeamWinner = "Ferrari", Year = 2003 };
            yield return new Race { GrandPrix = "United States", TeamWinner = "Ferrari", Year = 2003 };
            yield return new Race { GrandPrix = "Japan", TeamWinner = "Ferrari", Year = 2003 };
        }

        private void BindTagCloud()
        {
            int year = 2002;

            var tagSummaryNegative = from t in GetRaces()
                                     where t.Year == 2002
                                     group t by t.TeamWinner into tagGroup
                                     select new
                                     {

                                         Tag = tagGroup.Key,
                                         tagCount = tagGroup.Count()

                                     };

            var tagSummaryNegativeIteration = from t in GetRaces()
                                              where t.Year == 2002
                                              group t by t.TeamWinner into tagGroup
                                              select new
                                              {

                                                  Tag = tagGroup.Key,
                                                  tagCount = tagGroup.Count()

                                              };

            var tagSummaryPositive = from t in GetRaces()
                                     where t.Year == 2003
                                     group t by t.TeamWinner into tagGroup
                                     select new
                                     {

                                         Tag = tagGroup.Key,
                                         tagCount = tagGroup.Count()

                                     };

            var tagSummaryPositiveIteration = from t in GetRaces()
                                              where t.Year == 2003
                                              group t by t.TeamWinner into tagGroup
                                              select new
                                              {

                                                  Tag = tagGroup.Key,
                                                  tagCount = tagGroup.Count()

                                              };


            int maxTagFrequencyNegative = (from t in tagSummaryNegative select (int?)t.tagCount).Max() ?? 0;
            int maxTagFrequencyPositive = (from t in tagSummaryPositive select (int?)t.tagCount).Max() ?? 0;

            int maxTagFrequencyNegativeIteration = (from t in tagSummaryNegativeIteration select (int?)t.tagCount).Max() ?? 0;
            int maxTagFrequencyPositiveIteration = (from t in tagSummaryPositiveIteration select (int?)t.tagCount).Max() ?? 0;


            var tagCloudNegative = from t in GetRaces()
                                   where t.Year == 2002
                                   group t by t.TeamWinner into tagGroup
                                   select new
                                   {

                                       Tag = tagGroup.Key,
                                       weight = (double)tagGroup.Count() / maxTagFrequencyNegative * 100
                                   };

            var tagCloudNegativeIteration = from t in GetRaces()
                                            where t.Year == 2002
                                            group t by t.TeamWinner into tagGroup
                                            select new
                                            {

                                                Tag = tagGroup.Key,
                                                weight = (double)tagGroup.Count() / maxTagFrequencyNegativeIteration * 100
                                            };

            var tagCloudPositive = from t in GetRaces()
                                   where t.Year == 2003
                                   group t by t.TeamWinner into tagGroup
                                   select new
                                   {

                                       Tag = tagGroup.Key,
                                       weight = (double)tagGroup.Count() / maxTagFrequencyPositive * 100
                                   };

            var tagCloudPositiveIteration = from t in GetRaces()
                                            where t.Year == 2003
                                            group t by t.TeamWinner into tagGroup
                                            select new
                                            {

                                                Tag = tagGroup.Key,
                                                weight = (double)tagGroup.Count() / maxTagFrequencyPositiveIteration * 100
                                            };

            if (year == 2002)
            {
                ListView1.DataSource = tagCloudNegativeIteration;
                ListView1.DataBind();

                ListView2.DataSource = tagCloudPositiveIteration;
                ListView2.DataBind();

            }
            else
            {
                ListView1.DataSource = tagCloudNegative;
                ListView1.DataBind();

                ListView2.DataSource = tagCloudPositive;
                ListView2.DataBind();

            }
        }

        public string GetTagSize(double weight)
        {

            if (weight >= 99)
                return "xx-large";
            else if (weight >= 60)
                return "x-large";
            else if (weight >= 40)
                return "large";
            else if (weight >= 20)
                return "medium";
            else
                return "small";
        }
    }
}

And here you can see result: ![Tag cloud][1]

I'd recommend to you to debug your code a bit and check if all numbers are correct. May be you have some problems in queries (incorrect join or something like that), because all other code works fine for me.

Hope this helps.

P.S. May be you have problem in css?

0 讨论(0)

别那么骄傲

2021-01-29 00:16
Why don't you take this:
```
weight = (((double)tagGroup.Count() / maxTagFrequencyNegative * 100) - 100) * -1
```
That way you take the largest numbers and reverse them.
0 讨论(0)
发布评论:

提交评论
- 加载中...