Programming Forums > Application Development > Visual Basic .NET

minus4 · Jun 6th, 2008, 5:29 AM

hi there, im transfering from ASP classic to vb.net and i write in complete code behind
i am doing a search by select box where you first choose group --> ajax then fills and shows categories --- > fills sub categories --> fills types like so.

all works great, however there is not allways a sub category or there may not be types, so it is then that i show a button to say show products.

my problem is that my button still does an ajax post so i am unable to add the products to the page.

can someone advice on how to either add new items to an update panel, or how to page the button post the traditional way.

Thanks

see below for code:

(Toggle Plain Text)

Public Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs) Handles Me.Load
        Dim user As New LUMINAR.user
        If user.checklogin() = True Then
            Dim myuserinfo = user.readcookie

            ReDim mydiv(5)
            ReDim ltrl(8)

            scriptcontrol.ID = "scriptmanager1"
            divContainer.Controls.Add(scriptcontrol)

            mydiv(0) = New HtmlGenericControl("div")
            mydiv(1) = New HtmlGenericControl("div")
            mydiv(2) = New HtmlGenericControl("div")
            mydiv(3) = New HtmlGenericControl("div")
            mydiv(4) = New HtmlGenericControl("div")
            mydiv(5) = New HtmlGenericControl("div")

            mydiv(0).ID = "dropbox1"
            mydiv(1).ID = "dropbox2"
            mydiv(2).ID = "dropbox3"
            mydiv(3).ID = "dropbox4"
            mydiv(4).ID = "dropbox5"
            mydiv(5).ID = "divresults"


            btn.ID = "btn"
            btn.Text = "Show Items"
            btn.Visible = False

            lbltest.ID = "lbltest"
            lbltest.Text = "hghj"
            lbltest.Visible = False

            mydiv(4).Controls.Add(btn)
            mydiv(4).Controls.Add(lbltest)
            updatepanel.ContentTemplateContainer.Controls.Add(mydiv(4))

            divContainer.Controls.Add(updatepanel)

            ltrl(4) = New Literal
            ltrl(4).Text = "<br style='clear:both;' />"
            divContainer.Controls.Add(ltrl(4))
            divContainer.Controls.Add(mydiv(5))

        Else
            Response.Redirect("default.aspx")
        End If
    End Sub

highlighted is the code i use to create a button and add this to the page
then i create a <BR> then i create a div i wish to fill with content mydiv(5)

I have missed out all the dropdown boxes code as this is not needed.

below is my sub i have tried calling, that works but does not add new content to mydiv(5)

(Toggle Plain Text)

    
Protected Sub showitems_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btn.Click

        System.Threading.Thread.Sleep(500)

        lbltest.Text = "Tested"
        lbltest.Visible = True

        Dim itemdiv(5) As HtmlGenericControl

        itemdiv(0) = New HtmlGenericControl("div")
        itemdiv(0).ID = "1004276"
        Dim literal As New Literal
        literal.Text = "Please click on an item to create.<br />"

        itemdiv(0).Controls.Add(literal)

        mydiv(5).Controls.Add(itemdiv(0))

    End Sub

The label will update as the label is allready there, what i want to see is new
content appear in the form of product thumbnails, based on the dropdown options picked.

would be very grateful for your help

thanks

minus4 · Jun 6th, 2008, 7:54 AM

worked it out.

in the main div, after the first update panel you have to add another update panel
and set its updatemode to conditional.

then you can create your elements
add them to updatepanel2
then update the panel, not sure if i need to update or not
but i put it in there anyway.

(Toggle Plain Text)

ltrl(4) = New Literal
            ltrl(4).Text = "<br style='clear:both;' />"

            updatepanel2.ID = "updatepanel2"
            updatepanel2.UpdateMode = UpdatePanelUpdateMode.Conditional

            mydiv(5).Controls.Add(updatepanel2)

            divContainer.Controls.Add(ltrl(4))
            divContainer.Controls.Add(mydiv(5))

(Toggle Plain Text)

    
Protected Sub showitems_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btn.Click

        System.Threading.Thread.Sleep(500)

        Dim itemdiv(5) As HtmlGenericControl

        itemdiv(0) = New HtmlGenericControl("div")
        itemdiv(0).ID = "1004276"
        Dim literal As New Literal
        literal.Text = "Please click on an item to create.<br />"

        itemdiv(0).Controls.Add(literal)

        updatepanel2.ContentTemplateContainer.Controls.Add(itemdiv(0))

        updatepanel2.Update()

    End Sub

Jun 6th, 2008, 5:29 AM	#1
minus4 Newbie Join Date: Jun 2008 Posts: 2 Rep Power: 0	change button in ajax update panel to post normal way hi there, im transfering from ASP classic to vb.net and i write in complete code behind i am doing a search by select box where you first choose group --> ajax then fills and shows categories --- > fills sub categories --> fills types like so. all works great, however there is not allways a sub category or there may not be types, so it is then that i show a button to say show products. my problem is that my button still does an ajax post so i am unable to add the products to the page. can someone advice on how to either add new items to an update panel, or how to page the button post the traditional way. Thanks see below for code: (Toggle Plain Text) Public Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs) Handles Me.Load Dim user As New LUMINAR.user If user.checklogin() = True Then Dim myuserinfo = user.readcookie ReDim mydiv(5) ReDim ltrl(8) scriptcontrol.ID = "scriptmanager1" divContainer.Controls.Add(scriptcontrol) mydiv(0) = New HtmlGenericControl("div") mydiv(1) = New HtmlGenericControl("div") mydiv(2) = New HtmlGenericControl("div") mydiv(3) = New HtmlGenericControl("div") mydiv(4) = New HtmlGenericControl("div") mydiv(5) = New HtmlGenericControl("div") mydiv(0).ID = "dropbox1" mydiv(1).ID = "dropbox2" mydiv(2).ID = "dropbox3" mydiv(3).ID = "dropbox4" mydiv(4).ID = "dropbox5" mydiv(5).ID = "divresults" btn.ID = "btn" btn.Text = "Show Items" btn.Visible = False lbltest.ID = "lbltest" lbltest.Text = "hghj" lbltest.Visible = False mydiv(4).Controls.Add(btn) mydiv(4).Controls.Add(lbltest) updatepanel.ContentTemplateContainer.Controls.Add(mydiv(4)) divContainer.Controls.Add(updatepanel) ltrl(4) = New Literal ltrl(4).Text = "<br style='clear:both;' />" divContainer.Controls.Add(ltrl(4)) divContainer.Controls.Add(mydiv(5)) Else Response.Redirect("default.aspx") End If End Sub Public Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs) Handles Me.Load Dim user As New LUMINAR.user If user.checklogin() = True Then Dim myuserinfo = user.readcookie ReDim mydiv(5) ReDim ltrl(8) scriptcontrol.ID = "scriptmanager1" divContainer.Controls.Add(scriptcontrol) mydiv(0) = New HtmlGenericControl("div") mydiv(1) = New HtmlGenericControl("div") mydiv(2) = New HtmlGenericControl("div") mydiv(3) = New HtmlGenericControl("div") mydiv(4) = New HtmlGenericControl("div") mydiv(5) = New HtmlGenericControl("div") mydiv(0).ID = "dropbox1" mydiv(1).ID = "dropbox2" mydiv(2).ID = "dropbox3" mydiv(3).ID = "dropbox4" mydiv(4).ID = "dropbox5" mydiv(5).ID = "divresults" btn.ID = "btn" btn.Text = "Show Items" btn.Visible = False lbltest.ID = "lbltest" lbltest.Text = "hghj" lbltest.Visible = False mydiv(4).Controls.Add(btn) mydiv(4).Controls.Add(lbltest) updatepanel.ContentTemplateContainer.Controls.Add(mydiv(4)) divContainer.Controls.Add(updatepanel) ltrl(4) = New Literal ltrl(4).Text = "<br style='clear:both;' />" divContainer.Controls.Add(ltrl(4)) divContainer.Controls.Add(mydiv(5)) Else Response.Redirect("default.aspx") End If End Sub highlighted is the code i use to create a button and add this to the page then i create a <BR> then i create a div i wish to fill with content mydiv(5) I have missed out all the dropdown boxes code as this is not needed. below is my sub i have tried calling, that works but does not add new content to mydiv(5) (Toggle Plain Text) Protected Sub showitems_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btn.Click System.Threading.Thread.Sleep(500) lbltest.Text = "Tested" lbltest.Visible = True Dim itemdiv(5) As HtmlGenericControl itemdiv(0) = New HtmlGenericControl("div") itemdiv(0).ID = "1004276" Dim literal As New Literal literal.Text = "Please click on an item to create.<br />" itemdiv(0).Controls.Add(literal) mydiv(5).Controls.Add(itemdiv(0)) End Sub Protected Sub showitems_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btn.Click System.Threading.Thread.Sleep(500) lbltest.Text = "Tested" lbltest.Visible = True Dim itemdiv(5) As HtmlGenericControl itemdiv(0) = New HtmlGenericControl("div") itemdiv(0).ID = "1004276" Dim literal As New Literal literal.Text = "Please click on an item to create.<br />" itemdiv(0).Controls.Add(literal) mydiv(5).Controls.Add(itemdiv(0)) End Sub The label will update as the label is allready there, what i want to see is new content appear in the form of product thumbnails, based on the dropdown options picked. would be very grateful for your help thanks

Jun 6th, 2008, 7:54 AM	#2
minus4 Newbie Join Date: Jun 2008 Posts: 2 Rep Power: 0	Re: change button in ajax update panel to post normal way worked it out. in the main div, after the first update panel you have to add another update panel and set its updatemode to conditional. then you can create your elements add them to updatepanel2 then update the panel, not sure if i need to update or not but i put it in there anyway. (Toggle Plain Text) ltrl(4) = New Literal ltrl(4).Text = "<br style='clear:both;' />" updatepanel2.ID = "updatepanel2" updatepanel2.UpdateMode = UpdatePanelUpdateMode.Conditional mydiv(5).Controls.Add(updatepanel2) divContainer.Controls.Add(ltrl(4)) divContainer.Controls.Add(mydiv(5)) ltrl(4) = New Literal ltrl(4).Text = "<br style='clear:both;' />" updatepanel2.ID = "updatepanel2" updatepanel2.UpdateMode = UpdatePanelUpdateMode.Conditional mydiv(5).Controls.Add(updatepanel2) divContainer.Controls.Add(ltrl(4)) divContainer.Controls.Add(mydiv(5)) (Toggle Plain Text) Protected Sub showitems_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btn.Click System.Threading.Thread.Sleep(500) Dim itemdiv(5) As HtmlGenericControl itemdiv(0) = New HtmlGenericControl("div") itemdiv(0).ID = "1004276" Dim literal As New Literal literal.Text = "Please click on an item to create.<br />" itemdiv(0).Controls.Add(literal) updatepanel2.ContentTemplateContainer.Controls.Add(itemdiv(0)) updatepanel2.Update() End Sub Protected Sub showitems_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btn.Click System.Threading.Thread.Sleep(500) Dim itemdiv(5) As HtmlGenericControl itemdiv(0) = New HtmlGenericControl("div") itemdiv(0).ID = "1004276" Dim literal As New Literal literal.Text = "Please click on an item to create.<br />" itemdiv(0).Controls.Add(literal) updatepanel2.ContentTemplateContainer.Controls.Add(itemdiv(0)) updatepanel2.Update() End Sub

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Programming Forums > Application Development > Visual Basic .NET

change button in ajax update panel to post normal way