Hi,

I dynamically create a Text Box with two properties and display it in a placeholder (as shown in a code given below).

Default.aspx

<asp : PlaceHolder runat="server" ID="p_holder"></asp : PlaceHolder>

Default.aspx.vb

Dim TBox As System.Web.UI.WebControls.TextBox = New System.Web.UI.WebControls.TextBox

p_holder.Controls.Add(TBox)

TBox.ID = "T_ID"
TBox.Text = ""

My Question is how I save the user input for this Text Box, which will available for later use ( means after navigation with different pages)

you can save them it to a session variable or you could use properties... there are a couple ways to do it.

Jason Hall

could you please explain your answers in details

post more code and i can give you more details... why are you creating a text box in the place holder dynamically? why not just build it on the page?

Jason Hall

Hi

Here is a code for you, First is XML file which is my input, second is aspx.vb code to handel this XML for display

<?xml version="1.0" standalone="yes"?>
<OpeningFileDataset>
<TEXT_BOX>
    <TBLeft>200</TBLeft>
    <TBTop>700</TBTop>
    <TBHeight>25</TBHeight>
    <TBWidth>200</TBWidth>
    <TBContents>"all my values are dynamic"</TBContents>
    <PageNo>1</PageNo>
  </TEXT_BOX>
</OpeningFileDataset>

aspx.vb code

Partial Class Main
    Inherits System.Web.UI.Page

Public TBox As TextBox = New TextBox

Protected Overrides Sub OnInit(ByVal e As EventArgs)

        Dim ds As Data.DataSet = New Data.DataSet()
        Dim filePath As String = Server.MapPath("~/App_Data/My.XML")
        ds.ReadXml(filePath)

       For tcount = 0 To (ds.Tables.Count) - 1

          Select Case (ds.Tables(tcount).TableName)

               Case "TEXT_BOX"
          For Each dr As Data.DataRow In ds.Tables("TEXT_BOX").Rows

                        p_holder.Controls.Add(rtfTxtBox)

         TBox.ID = dr("TBLeft").ToString + dr("TBTop").ToString
                        TBox .Style.Add("left", dr("TBLeft").ToString + "px")
                        rtfTxtBox.Style.Add("top", dr("TBTop").ToString + "px")
                        rtfTxtBox.Height = dr("TBHeight").ToString
                        rtfTxtBox.Width = dr("TBWidth").ToString

                    Next

            End Select
        Next

 End Sub

End Class



as you see the number of text boxs with their properties are not dynamic.

I think it what you ask


Thanks

please consider "rtfTxtBox" as a "TBox", its my typing error

I'm assuming you are using a linkbutton or button to navigate from page to page?

If so you can do something like this:

Ok what i am doing is, Assuming you are using a button of some kind(I'm calling mine btnNavigate), On button click i'm looping through all the controls in PlaceHolder1 and if it's a text box i'm grabbing it's text value then checking if it has a value. if it has a value i'm adding it to a session variable which you will need to create in the glabal.asa file. Now you will have one session variable that holds all the values of these text boxes which you can use later by splitting it. If you need to know which text box holds what value you can use another delimiter to separate those. I'm sure some one else has a better way but this is JUST AN EXAMPLE... let me know if you need any help with this as it is UNTESTED.

Jason Hall

Hi Jason,

Many Thanks, the code work fine with little adjustment, Another problem which I faced now is, I need to store the responses of user using images, For this I used java script but it not work,

<?xml version="1.0" standalone="yes"?>
<PICTURE_BOX>
    <PBTop>544</PBTop>
    <PBHeight>150</PBHeight>
    <PBWidth>200</PBWidth>
</PICTURE_BOX>

ASPX.VB

Public Image1 As System.Web.UI.WebControls.Image = New System.Web.UI.WebControls.Image()

Protected Overrides Sub OnInit(ByVal e As EventArgs)

   Dim ds As Data.DataSet = New Data.DataSet()
   Dim filePath As String = Server.MapPath("~/App_Data/My.XML")
   ds.ReadXml(filePath)

   For tcount = 0 To (ds.Tables.Count) - 1
     Select Case (ds.Tables(tcount).TableName)
        Case " PICTURE_BOX "
          For Each dr As Data.DataRow In ds.Tables("TEXT_BOX").Rows
          ph.Controls.Add(Image1)
          Image1.ID = dr("ABLeft").ToString
          Image1.Style.Add("top", dr("ABTop").ToString + "px")
          Image1.ImageUrl = "~/p.gif"
          Image1.Attributes.Add("name", dr("ABLeft").ToString))

     Image1.Attributes.Add("onclick", "Javascript:click1()")
     Image1.Attributes.Add("ondblclick", "Javascript:click2()")



   End Select
  Next

End Sub

ASPX
<script type="text/javascript" >
    function click1(){document.getElementsById(XXXX).src='blank.gif';}
    function click2(){document.getElementsById(XXXX).src='fill.gif';}
</script>

<html><body><form><div>
<asp:PlaceHolder ID="ph" runat="server"></asp:PlaceHolder>
</html></body></form></div>

If I hardcode the ID in document.getElementsById its work, My problem is how do I pass the Image ID from .aspx.vb to .aspx wihch used in document.getElementsById and store it.

Thanks in advance

If i understand you correctly i think you want something like this:

Image1.Attributes.Add("onclick", "Javascript:click1('" & Image1.ClientID & "')")

<script type="text/javascript" >
    function click1(id1){document.getElementsById(id1).src='bla nk.gif';}
    function click2(id2){document.getElementsById(id2).src='fil l.gif';}
</script>

Jason Hall

I try this but i got error

"Error: Object doesn't support this property or method"

I checked my syntax it ok. Could you please give me any other suggestion

thanks in advance