服务器控件Table的使用

      动态地创建一个表包含三个步骤。首先，创建 TableCell 对象，表示行中的单元格。添加单元格的内容有两种方法：设置 Text 属性，或者向 TableCell 的 Control.Controls 集合添加控件。接下来，创建 TableRow 以表示表中的行。将此前创建的 TableCell 对象添加到 TableRow 的 Cells 集合中。最后，将 TableRow 添加到 Table 控件的 Rows 集合中。对表中的各行重复此过程。
      实例：从数据库表中取得产品大类和小类，灵活显示产品类别及其之间的关系列表

 1
 2            //产品大类数
 3            int ParentCount=dt.Rows.Count;
 4            //产品大类的计数器
 5            int ParentCounter=ParentCount;
 6            // 总行数
 7            int rowCnt=0;
 8            //满行数
 9            int tempn=ParentCount/3;
10            if(3*tempn<ParentCount)
11                rowCnt=ParentCount/3+1;
12            else
13                rowCnt=tempn;
14
15            // 当前行
16            int rowCtr;
17            // 当前单元格
18            int cellCtr;
19            // 每行的列数
20            int cellCnt=3;
21
22
23            for(rowCtr=1; rowCtr <= rowCnt; rowCtr++) 
24            {
25                // Create new row and add it to the table.
26                TableRow tRow = new TableRow();
27                Table1.Rows.Add(tRow);
28                for (cellCtr = 1; cellCtr <= cellCnt; cellCtr++) 
29                {
30                    // Create a new cell and add it to the row.
31                    TableCell tCell = new TableCell();
32                    tRow.Cells.Add(tCell);               
33                    //string prodID = rowCtr + "_" + cellCtr;
34                    //产品名称
35                    string prodName=dt.Rows[ParentCounter-1]["Name"].ToString();
36                    // Add a literal text as control.
37                    tCell.Controls.Add(new LiteralControl(" "));
38                    // Create Hyperlink Web Server control and add to cell
39                    System.Web.UI.WebControls.HyperLink h = new HyperLink();
40
41                    DataTable dt1=new DataTable();
42                    dt1=pc.GetCategoriesByParentID(dt.Rows[ParentCounter-1]["ID"].ToString());
43
44                    //小类数量
45                    int ChildCount=dt1.Rows.Count;
46                    h.Text = "<STRONG>"+prodName+"（"+ChildCount.ToString()+"）<STRONG><br>";
47                    h.NavigateUrl = "product/product_list.aspx?id="+dt.Rows[ParentCounter-1]["ID"].ToString();
48                    
49                    tCell.Controls.Add(h);
50                    //增加小类
51                    
52                    if(dt1.Rows.Count>0)
53                    {
54                        if(dt1.Rows.Count==1)
55                        {    
56                            System.Web.UI.WebControls.HyperLink h1 = new HyperLink();
57                            h1.Text=dt1.Rows[0]["Name"].ToString();
58                            h1.NavigateUrl = "product/product_list.aspx?id="+dt1.Rows[0]["ID"].ToString();
59                            tCell.Controls.Add(h1);
60                        }
61
62                        if(dt1.Rows.Count==2)
63                        {
64                            System.Web.UI.WebControls.HyperLink h1 = new HyperLink();
65                            h1.Text=dt1.Rows[0]["Name"].ToString()+"、";
66                            h1.NavigateUrl ="product/product_list.aspx?id="+dt1.Rows[0]["ID"].ToString();
67                            tCell.Controls.Add(h1);
68                            System.Web.UI.WebControls.HyperLink h2 = new HyperLink();
69                            h2.Text=dt1.Rows[1]["Name"].ToString();
70                            h2.NavigateUrl = "product/product_list.aspx?id="+dt1.Rows[1]["ID"].ToString();
71                            tCell.Controls.Add(h2);
72                        }
73                        if(dt1.Rows.Count>2)
74                        {
75                            System.Web.UI.WebControls.HyperLink h1 = new HyperLink();
76                            h1.Text=dt1.Rows[0]["Name"].ToString()+"、";
77                            h1.NavigateUrl ="product/product_list.aspx?id="+dt1.Rows[0]["ID"].ToString();
78                            tCell.Controls.Add(h1);
79                            System.Web.UI.WebControls.HyperLink h2 = new HyperLink();
80                            h2.Text=dt1.Rows[1]["Name"].ToString()+"";
81                            h2.NavigateUrl = "product/product_list.aspx?id="+dt1.Rows[1]["ID"].ToString();
82                            tCell.Controls.Add(h2);
83                        }
84                    }
85                
86
87                    ParentCounter--;
88                    if(ParentCounter<0)
89                        return ;
90                }
91            }