how to get valus in dynamic added textbox

try to check cell.Controls.Count to get the number of controls. If there aren´t any then there is the problem.

For Each textbox As System.Web.UI.Control In cell.Controls.Count
Dim tbox As TextBox = CType(textbox, System.Web.UI.WebControls.TextBox)

let me update about the post , i some how got succeed about the problem
have a look on code behind submit button
dim plholder As PlaceHolder = DirectCast(FindControl("PlaceHolder1"), PlaceHolder)


            For Each div As System.Web.UI.Control In plholder.Controls
                If div.[GetType]().Name = "HtmlGenericControl" Then
                    Dim hml As HtmlGenericControl = DirectCast(div, HtmlGenericControl)


                    Dim str12 As String
                    str12 = hml.TagName
                    str12 = hml.ID

                    For Each table As System.Web.UI.Control In div.Controls

                        If table.[GetType]().Name = "HtmlTable" Then

                            Dim htab As HtmlTable = DirectCast(table, HtmlTable)

                            Dim str13 As String
                            str13 = htab.TagName
                            str13 = htab.ID

                            For Each row As System.Web.UI.Control In table.Controls

                                Dim hrow As HtmlTableRow = DirectCast(row, HtmlTableRow)

                                Dim str14 As String
                                str14 = hrow.TagName
                                str14 = hrow.ID



                                For Each cell As System.Web.UI.Control In row.Controls

                                    Dim hcell As HtmlTableCell = DirectCast(cell, HtmlTableCell)
                                    Dim str15 As String
                                    str15 = hcell.TagName
                                    str15 = hcell.ID

                                    For Each textbox As System.Web.UI.Control In cell.Controls

                                        Dim tbox As TextBox = CType(textbox, System.Web.UI.WebControls.TextBox)
                                        Dim str16 As String
                                        str16 = tbox.TextMode
                                        str16 = tbox.ID
                                    Next 'textbox
                                Next 'cell
                            Next 'row


                        End If
                    Next 'table

                    'here you can access inner controls of html
                    'If str12.ToLower() = "div" Then
                    '    Response.Write(str12)
                    '    'Else If
                    'End If

                End If
next


but i m getting an error

Unable to cast object of type 'System.Web.UI.LiteralControl' to type 'System.Web.UI.WebControls.TextBox'.
on line
Dim tbox As TextBox = CType(textbox, System.Web.UI.WebControls.TextBox) in above code

 

Heres the problem have a look

http://forums.asp.net/t/1186195.aspx

see the link http://www.gfln.org/Regsiteration.aspx and click on radio button from1  to 7 which created that div dynamically depends upon user select which radio button select and on submitt button  i need to get teh value of that div

Make sure that radio button selected index changed event is called before the submit button click event if not the div is not added to the place holder and hence you get the error.

here is the code where i added div in place holder
Protected Sub RadioButtonList1_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles RadioButtonList1.SelectedIndexChanged

Dim index As Integer
For index = 1 To RadioButtonList1.SelectedValue
Dim newdiv As New HtmlGenericControl("div")
newdiv.ID = "mydiv"
'newdiv.Attributes.Add("id", "mydiv")
newdiv.EnableViewState = True
Dim ht As New HtmlTable()
ht.ID = "mytable" & index.ToString()
ht.EnableViewState = True
ht.Width = "100%"
ht.CellSpacing = "0"
ht.CellPadding = "0"
ht.Border = 0

Dim htr, htr1, htr2 As New HtmlTableRow()
Dim cell, htc, htc1, htc2, htc3, htc4, htc5, htc6, htc7, htc8 As New HtmlTableCell()
Dim name_tb As New TextBox()
Dim sal_ddl As New DropDownList
'validator
Dim name_req As New RequiredFieldValidator
Dim tel_req As New RequiredFieldValidator
Dim email_req As New RequiredFieldValidator

name_tb.ID = "name_tb" & index
sal_ddl.ID = "sal_ddl" & index
name_req.ID = "name_req" & index
tel_req.ID = "tel_req" & index
email_req.ID = "email_req" & index
name_tb.EnableViewState = True
sal_ddl.EnableViewState = True
tel_req.EnableViewState = True
sal_ddl.Items.Add("MR")
sal_ddl.Items.Add("Ms")
sal_ddl.Items.Add("Mrs")


Dim Tel_tb1 As New TextBox
Tel_tb1.ID = "Tel_tb1" & index
Tel_tb1.EnableViewState = True
name_tb.TextMode = TextBoxMode.SingleLine
Dim email_tb1 As New TextBox
email_tb1.ID = "email_tb1" & index
email_tb1.TextMode = TextBoxMode.SingleLine
htc.InnerText = "Name : "
htc.Width = "20%"
htc.Align = "Left"


htc1.Controls.Add(sal_ddl)
htc1.Width = "10%"
htc2.Width = "70%"
htc2.Align = "left"


htc2.Controls.Add(name_tb)
htc2.Controls.Add(name_req)
htr.Controls.Add(htc)
htr.Controls.Add(htc1)
htr.Controls.Add(htc2)

ht.Controls.Add(htr)
name_req.ControlToValidate = "name_tb" & index
name_req.Display = ValidatorDisplay.Dynamic
name_req.ErrorMessage = ("Please Enter name of attendenes")

'make 2nd row
htc3.InnerText = "Telephone : "
htc3.Width = "20%"
htc3.Align = "Left"

htc4.InnerHtml = ""
htc4.Width = "10%"
htc5.Width = "70%"
htc5.Align = "left"
htc5.Controls.Add(Tel_tb1)
htc5.Controls.Add(tel_req)
htr1.Controls.Add(htc3)
htr1.Controls.Add(htc4)
htr1.Controls.Add(htc5)

ht.Controls.Add(htr1)
tel_req.ControlToValidate = "Tel_tb1" & index
tel_req.Display = ValidatorDisplay.Dynamic
tel_req.ErrorMessage = ("Please Enter Phone")

'make 3rd row
htc6.InnerText = "Email : "
htc6.Width = "20%"
htc6.Align = "Left"

htc7.InnerHtml = ""
htc7.Width = "10%"
htc8.Width = "70%"
htc8.Align = "left"
htc8.Controls.Add(email_tb1)
htc8.Controls.Add(email_req)
htr2.Controls.Add(htc6)
htr2.Controls.Add(htc7)
htr2.Controls.Add(htc8)
ht.Controls.Add(htr2)
email_req.ControlToValidate = "email_tb1" & index
email_req.Display = ValidatorDisplay.Dynamic
email_req.ErrorMessage = ("Please Enter Email")
'Add a blank rows
cell.ColSpan = 3
cell.InnerHtml = "
"
Dim row As New HtmlTableRow
row.Cells.Add(cell)
ht.Rows.Add(row)

newdiv.Controls.Add(ht)
newdiv.Attributes.Add("table", "ht")


newdiv.Attributes.Add("Style", "border-bottom :#ccc solid 0px")
newdiv.Attributes.Add("style", "height:23px")
newdiv.Attributes.Add("style", "padding-left:20px")


Me.PlaceHolder1.Controls.Add(newdiv)
PlaceHolder1.EnableViewState = True

Next

'End Sub

End Sub
 
and here is the code behind submiit button where i want to retrive the div
For index = 1 To RadioButtonList1.SelectedValue
Dim plholder As PlaceHolder = DirectCast(FindControl("PlaceHolder1"), PlaceHolder)
'Dim name_tb As TextBox = DirectCast(plholder.FindControl("name_tb" & index.ToString()), TextBox)
Dim newdiv As HtmlGenericControl = DirectCast(FindControl("mydiv"), HtmlGenericControl)
Response.Write(newdiv.ID)
Next

Add the div to the place holder before finding it.

i m getting object reference not set to insatnce of an object
i have code like this  while adding div
 
Dim newdiv As New HtmlGenericControl("div")
newdiv.ID = "mydiv"
and while getting i have
Dim plholder As PlaceHolder = DirectCast(FindControl("PlaceHolder1"), PlaceHolder) //work fine
Dim newdiv As HtmlGenericControl = DirectCast(FindControl("mydiv"), HtmlGenericControl)
Response.Write(newdiv.ID)

 //this gives above mentioned exception
 
any help

Converted from c# to Vb..
HtmlGenericControl div = new HtmlGenericControl("div");
        div.ID = "div12";
        plcDiv.Controls.Add(div);

//Button click event

Dim div As HtmlGenericControl = DirectCast(FindControl("div12"), HtmlGenericControl)

div.InnerText = "test test"

thanks for ur reply ,no u r not getting it, i already set div,placeholder etc etc on radio buttonlist click,i just need to recall it .menas need to get it. now
 
for example i got placeholder like this way
 
Dim plholder As PlaceHolder = DirectCast(FindControl("PlaceHolder1"), PlaceHolder)
but what about div??
 
 

well sam thanks for ur reply ,but my hierachray is like that
placeholder ,div,htmltable,row,tablecell ,textbox,
 
right now i m facing problem with how to find div dynamically added in placeholder,
i added it
Dim newdiv As New HtmlGenericControl("div")
Me.PlaceHolder1.Controls.Add(newdiv)
i need to find  it on submitt button

You need to add an event handler for the submit buttton's click event.
 
Also, you need to fix the numerous syntax errors in your code; the C# compiler will choke on it.