accessing generated controls in tablerows

[kleine]

Hi,

 

The following code generates a (html)tabel with three cells and an ammount of columns wihich is specified in a textbox that should be filled in by a user (the user gives the ammount of collumns clicks a "button" and the collumn with the desired ammoun of rows is "drawn".

 

Dim i As Integer

For i = 1 To CType(txtAmountDelivered.Text, Integer)

Dim row As New HtmlTableRow

Dim ddlArt As New DropDownList

'items come later out of a db

ddlArt.Items.Add("artikel1")

ddlArt.Items.Add("artikel2")

ddlArt.Items.Add("artikel3")

ddlArt.Items.Add("artikel4")

'etc...

 

Dim txttest As New TextBox

txttest.Font.Name = "verdana"

txttest.Font.Size = txttest.Font.Size.XXSmall

txttest.Text = "Amount"

 

Dim cel1 As New HtmlTableCell

Dim cel2 As New HtmlTableCell

Dim cel3 As New HtmlTableCell

 

Dim lblArtOmschrijving As New Label

lblArtdescription.Text = "--from afas DB--" 'changes later depending on what is chosen out of the dropdowlist (which is generated)

 

 

'cel1.InnerText = "test"

'cel2.InnerText = "test"

'cel3.Controls.Add(txttest)

 

cel1.Controls.Add(ddlArt)

cel2.Controls.Add(lblArtOmschrijving)

cel3.Controls.Add(txttest)

 

 

row.Cells.Add(cel1)

row.Cells.Add(cel2)

row.Cells.Add(cel3)

 

tbl_Delivered.Rows.Add(row)

next

 

This works perfectly but:

cell1 contains a dropdownlist with values coming out of an sqlDB

My question: How can I acces the generated controls (dropdownlists) if they don't even "exist" the first time the app. is runned.

so: how can I fire the selectedIndexChanged event from the generated controls

 

thanx in advance

K.

[Robby]

Let's say the DDL is in a Panel, use panel1.findcontrol() to locate the child control.

 

Something like this...

 

dim dd as Dropdownlist

dd = CType(panel1.FindControl("myDD"), DropDownList)

 

if not dd is nothing then

'do something with the dd here

end if

[kleine]

Tnx for the help Robby, but could you please give me a more code based example which creates a button at runtime + the (on-click) eventhandler for the generated controll.

Thanks in advance, hope hearing from you soon.

greets

K.

[Robby]

To create a button at runtime:

 

Dim btn as button

 

for x as integer = 0 to 5

btn = new buton

btn.text = "Hello " & x

panel1.controls.add(btn)

next