ASP.net looping through table - asp.net

Question

I was wondering if any one could help me out; I have a table which looks something like the following:
<table id="Table1" border="0">
<tr>
<td><b>1.</b> Question 1</td>
</tr><tr>
<td style="border-width:5px;border-style:solid;"></td>
</tr><tr>
<td align="left" style="width:1000px;"><input id="Radio1" type="radio" name="Group1" value="Radio1" /><label for="Radio1">Answer1</label></td>
</tr><tr>
<td align="left" style="width:1000px;"><input id="Radio1" type="radio" name="Group1" value="Radio1" /><label for="Radio1">Answer2</label></td>
</tr><tr>
<td align="left" style="width:1000px;"><input id="Radio1" type="radio" name="Group1" value="Radio1" /><label for="Radio1">Answer3</label></td>
</tr><tr>
<td align="left" style="width:1000px;"><input id="Radio1" type="radio" name="Group1" value="Radio1" /><label for="Radio1">Answer4</label></td>
</tr><tr>
<td style="height:30px;"></td>
</tr><tr>
<td><b>2.</b> Question 2</td>
</tr><tr>
<td style="border-width:5px;border-style:solid;"></td>
</tr><tr>
<td align="left" style="width:1000px;"><input id="Radio2" type="radio" name="Group2" value="Radio2" /><label for="Radio2">yes</label></td>
</tr><tr>
<td align="left" style="width:1000px;"><input id="Radio2" type="radio" name="Group2" value="Radio2" /><label for="Radio2">no</label></td>
</tr><tr>
<td style="height:30px;"></td>
</tr>
</table>
How do I go about looping through each group of radio buttons and getting the text of the selected radio button?
The code displayed above is created dynamically ... in my aspx file I have the following code:
<asp:Table ID="Table1" runat="server">
</asp:Table>

Answer 1

If you want to access the rows in ASP.NET (on the server side), you need to convert the table, rows and the cells to server control (using runat="server") and iterate through the controls in the table.
EDIT : :- If you are adding the rows, cells and radionbuttons following way, all of them will be the server controls (and are runat=server) so that you can access them the way I mentioned above:--
// Create new row and add it to the table.
TableRow tRow = new TableRow();
table1.Rows.Add(tRow);
for (cellCtr = 1; cellCtr <= cellCnt; cellCtr++)
{
// Create a new cell and add it to the row.
TableCell tCell = new TableCell();
RadioButton rdb = new RadioButton();
rdb.ID = "rdb_" + cellCtr.ToString();
rdb.Text = "radio button";
rdb.GroupName = "rdbGroup";
tCell.Controls.Add(rdb);
tRow.Cells.Add(tCell);
}
EDIT:-
You can find the controls in each cell.Something like below:-
foreach(TableCell cell in tableRow.Cells)
{
foreach(Control ctrl in cell.Controls)
{
if(ctrl is RadioButton)
{
if(ctrl.Selected)
{
string rdValue=ctrl.Text;
}
}
}
}
Or If you want to iterate on the client side using Javascript, have a look here and you dont have to apply runat="server".

Answer 2

It sounds like you're starting with a barebones <table> in your markup page, and dynamically adding those <input> afterwards.
Consider taking this approach:
Add the runat="server" attribute to your table.
In the code where you're adding those <input> tags, add a new RadioButton control. Use an ID here that you can predict later. Perhaps you can use a RadioButtonList instead, if the choices are logically grouped!
It's unclear if you're manually adding those <tr> and <td> as strings. Consider the option of new TableRow() and new TableCell(). Then add the new RadioButton to the TableCell.Controls collection with tc.Controls.Add(myNewRadioButton);
In your postback code, simply refer to your RadioButton controls by id, or even loop through the Controls collection property of the Table1.
foreach (Control x in Table1.Controls)
{
if (x.GetType().ToString().Equals("System.Web.UI.WebControls.RadioButton"))
{
if (((RadioButton)x).Checked)
{
//proceed.
}
}
}

Answer 3

Convert all controls to server controls (by adding the runat="server" attribute). You can then programatically access what you need o. The server.