how to make radiobuttion visible false in repeater?

Diksha dudi 126

I am having 5 radio button in repeater and want to make it invisible when its text is nothing, but it is not working

aspx code:

vb.net code:

Imports System.Data  
Imports System.Data.SqlClient  
  
Partial Class Product_detailpage  
    Inherits System.Web.UI.Page  
  
    Dim user_id As Integer  
  
    Protected Sub Page_Load(sender As Object, e As System.EventArgs) Handles Me.Load  
  
       
         
        If Not Me.IsPostBack Then  
            Me.pDetailsurl()  
            Me.pincode()  
            Me.prod_size()  
  
        End If  
    End Sub  
  
    Private Sub prod_size()  
        Dim value As String = ""  
  
  
        For Each item As RepeaterItem In durl.Items  
  
            If item.ItemType = ListItemType.AlternatingItem OrElse item.ItemType = ListItemType.Item Then  
                Dim rdb As RadioButton = TryCast(item.FindControl("RadioButton1"), RadioButton)  
                Dim rdb1 As RadioButton = TryCast(item.FindControl("RadioButton2"), RadioButton)  
                Dim rdb2 As RadioButton = TryCast(item.FindControl("RadioButton3"), RadioButton)  
                Dim rdb3 As RadioButton = TryCast(item.FindControl("RadioButton4"), RadioButton)  
                Dim rdb4 As RadioButton = TryCast(item.FindControl("RadioButton5"), RadioButton)  
  
                If rdb.Text Is Nothing Then  
                    MsgBox("hyy")  
                    rdb.Visible = False  
                End If  
                If rdb1.Text Is Nothing Then  
                    rdb1.Visible = False  
                End If  
                If rdb2.Text Is Nothing Then  
                    rdb2.Visible = False  
                End If  
                If rdb3.Text Is Nothing Then  
                    rdb3.Visible = False  
                End If  
                If rdb4.Text Is Nothing Then  
                    rdb4.Visible = False  
                End If  
  
            End If  
  
  
        Next  
    End Sub

output:

AgaveJoe 26,186 Reputation points

2022-04-16T11:23:59.027+00:00

I recommend following standard Web Forms programming practices and bind a radio button list to a data set; data driven design.. Then only the items in the data set are displayed.

Keep in mind, VB.NET and Web Forms are not the best choice for learning web development unless you are planning to support legacy systems. You might want to look into .NET Core.
Diksha dudi 126 Reputation points

2022-04-16T11:37:09.733+00:00

Ok thank you
Albert Kallal 4,646 Reputation points

2022-04-17T17:39:37.977+00:00
Try this:

If rdb4.Text = "" then

The text is not "nothing" or a so called empty object, but when not set, will become a empty string.

And as noted, you would be better to use a RadioButtonList, since it can be feed data for your selections.

So, if you add a different size etc, then you can feed it a data table of choices. And thus no hard coding in the markup. the RadioButton list is like a drop down, or any other data aware control - you can feed it data, and thus the options will not appear. and a huge bonus feature is that it automatic only allows one selection - you don't have to add any code to de-select the other choices.

But, never the less - you need to check for a empty string - the "text" property will and does exist - even when not set, and since that property exists, then it return is a empty string such as "", and nothing test will not work.
Diksha dudi 126 Reputation points

2022-04-17T17:47:11.027+00:00

Ok thank you for the reply, i already tried this after that it worked.