如何使用其数据加载控件？ [英] How can I load Controls With its data?

问题描述

大家好



我有两张asp桌子。我在第一个表中根据数据库以编程方式创建了一些复选框，第二个表也根据从第一个表中选择的复选框添加了复选框，当我单击按钮时，所有复选框都随其数据消失。

Hi guys

I have two asp table. I create in the first table some checkboxes according to database programmatically and the second table also I add checkboxes according to checkboxes that selected from the first table, when I click button all of checkboxes disappear with its data.

void Page_Load(object sender, ArgEvent e)
{
          DataView DV = Db.Qury("Select Id, Name from tblInputs");
          for(int i = 0; i < DV.Count; i++)
          {
               Table1.Rows.Add(new TableRow());
               TableCell cell = new TableCell();
               CheckBox chkbox = new ChackBox();
               chkbox.ID = DV[i][0].ToString();
               chkbox.Text = DV[i][1].ToString();
               cell.Controls.Add(chkbox);
               Table1.Rows[Table1.Rows.Count - 1].Cell.Add(cell);
           }
               

}
void Button_Click(object sender, ArgEvent e)
{
       for(int i = 0; i < Table1.Rows.Count; i++)
          {
               foreach(Control item in Table1.Rows[i].Controls)
               {
                     Checkbox chk = (Checkbox)item[0];
                     if(chk.Checked)
                     {
                            DataView DV = Db.Qury("Select Id, Name from Tranfer where InputId = " + chk.ID);
                          for(int i = 0; i < DV.Count; i++)
                         {
                                Table2.Rows.Add(new TableRow());
                                TableCell cell = new TableCell();
                                RadioButton Rdbtn = new RadioButton();
                                Rdbtn.ID = DV[i][0].ToString();
                                Rdbtn.Text = DV[i][1].ToString();
                                cell.Controls.Add(Rdbtn);
                               Table2.Rows[Table2.Rows.Count - 1].Cell.Add(cell);
                         }


                     }
               }
               
           }
}

问题：如何保存选中的复选框并在回发后显示？





对不起英语

The question: How can I save selected checkboxes and appear them after postback?


Sorry for English

推荐答案

正如Abdul Samad KP在page_Load中回答

然后将你的表添加到asession

As Abdul Samad KP answered in page_Load
Then add your table to asession

void Page_Load(object sender, ArgEvent e)
{
     if (!IsPostBack)
 
     {
          DataView DV = Db.Qury("Select Id, Name from tblInputs");
          for(int i = 0; i < DV.Count; i++)
          {
               Table1.Rows.Add(new TableRow());
               TableCell cell = new TableCell();
               CheckBox chkbox = new ChackBox();
               chkbox.ID = DV[i][0].ToString();
               chkbox.Text = DV[i][1].ToString();
               cell.Controls.Add(chkbox);
               Table1.Rows[Table1.Rows.Count - 1].Cell.Add(cell);
           }
Session["mytb"]=Table1;
        }       
 
}

protected void btn_Submit_Click(object sender, EventArgs e)
{
//Here assign DataTable to the Session, modify/update the DataTable
DataTable mytb = (DataTable)Session["mytb"];  
//after updating/modifying datatable assign it back to your table. Something like:
Table1=mytb;
}

我没有测试代码，但逻辑应该很好

希望它有所帮助！



注意，

Samira

I didn't test the code but the logic should be good
Hope it helps!

Regard,
Samira

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