Question

我正在尝试实施此标记云： http://thetagcloud.codeplex.com/

...我需要将以下硬编码值替换为来自我的数据库的值？

    <%= new TagCloud(   new Dictionary<string, int> {
                        {"C#", 58},
                        {"ASP.NET", 45},
                        {"VB.NET", 36},
                        {"AJAX", 24},
                        {"LINQ", 13}
                    },
                    new TagCloudGenerationRules
                    {
                        TagToolTipFormatString = "Tag weight: {0}",
                        TagUrlFormatString = "search.aspx?p=1&tag={0}"
                    }) %>

我创建了以下sql字符串，它以期望字符串/ int或value / key

的格式返回数据

SELECT Tag, COUNT(Tag) AS Counter
FROM         dbo.CtagCloud
GROUP BY Tag
HAVING      (COUNT(Tag) > 3)
ORDER BY Counter DESC

Answer 1

嗯，我有一个超级简短的外观，只是上面那个示例代码。我怀疑你需要传入一个数组（值对）而不是字符串。

只需遍历返回的每条记录并将其添加到数组中。然后将该数组传递给TagCloud对象。

Answer 2

这是我的数据访问代码

 // SQL Select Command
    SqlConnection conn = new SqlConnection(connectionString);
    SqlCommand mySqlSelect = new SqlCommand("SELECT TOP (100) PERCENT Tag, COUNT(Tag) AS Counter FROM dbo.CtagCloud GROUP BY Tag HAVING (COUNT(Tag) > 3) ORDER BY Counter DESC", conn);
    mySqlSelect.CommandType = CommandType.Text;
    SqlDataAdapter mySqlAdapter = new SqlDataAdapter(mySqlSelect);
    DataSet myDataSet = new DataSet();
    mySqlAdapter.Fill(myDataSet);

    // create an instance for ArrayList
    ArrayList myArrayList = new ArrayList();

    // foreach loop to read each DataRow of DataTable stored inside the DataSet
    foreach (DataRow dRow in myDataSet.Tables[0].Rows)
    {
        // add DataRow object to ArrayList
        myArrayList.Add(dRow);
    }

Asp.net Dictionary - 用数据库值替换硬编码值

2 个答案: