Assigning Value to Programmatically Added Textbox(es)

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Assigning Value to Programmatically Added Textbox(es)

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Last post 04-20-2009 2:24 AM by mmmisa83. 5 replies.

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Assigning Value to Programmatically Added Textbox(es)

04-15-2009, 10:53 PM

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9 point Member
mmmisa83
Member since 04-03-2007, 8:33 AM
Posts 12

Hi,

I have this problem:

This program adds a number of textboxes (depends on intTotal given by user):

For i = 0 To intTotal - 1
Dim newTextBox As New TextBox
newTextBox.ID = "txtDetail" & (i + 1).ToString
form1.Controls.Add(newTextBox)
Next

The above code works fine. But when it comes to assigning a value to each textbox in other function, I have no idea. Here is what I want to do:

If intTotal = 1
   txtDetail1 = "1"
If intTotal = 2
   txtDetail1 = "1"
   txtDetail2 = "2"
and so forth..

I'm thinking of using For loop, but how do I name each textbox in code behind when the textbox is created in runtime?

For i = 0 To Convert.ToInt32(oTotalVar) - 1
"txtDetail" & i = ??????
Next

Thanks in advance for any help or suggestion.

Re: Assigning Value to Programmatically Added Textbox(es)

04-15-2009, 11:41 PM

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Answer

990 point Participant
Paul W Johnston
Member since 04-15-2009, 9:53 PM
Posts 168

Could you try

For i = 0 To Convert.ToInt32(oTotalVar) - 1
this.FindControl( "txtDetail" & i).Text = i
Next

Cheers

Paul

Please mark this post as the answer if you found it useful.

Cheers

Paul

Re: Assigning Value to Programmatically Added Textbox(es)

04-15-2009, 11:57 PM

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11,839 point Star
shahed.kazi
Member since 07-09-2008, 2:15 AM
Sydney, Australia
Posts 2,328

Check here

Shahed Kazi [SCJP]

Using MultiView control | Using FileUpload control

Read My Blog

Re: Assigning Value to Programmatically Added Textbox(es)

04-16-2009, 2:10 AM

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Answer

129 point Member
dpkngm
Member since 03-02-2009, 5:24 AM
Noida
Posts 28

http://www.aspsnippets.com/post/2009/03/01/Dynamic-Controls-Made-Easy-ASPNet.aspx

Deepak Nigam
deepak@swiftcybernetics.com
http://www.swiftcybernetics.com

please mark as answer if it helps u.

Re: Assigning Value to Programmatically Added Textbox(es)

04-16-2009, 3:03 AM

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Answer

618 point Member
seekerwoo
Member since 03-24-2009, 3:15 AM
Sydney
Posts 109

I'm not quite sure if the following solution is what you want, but using repeater to loop and render is alternative approch.

1. aspx file

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="dynamictextboxrepeater.aspx.cs" Inherits="ForumTest01.dynamictextboxrepeater" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title></title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:Repeater ID="Repeater1" runat="server"
            onitemdatabound="Repeater1_ItemDataBound" >
            <HeaderTemplate>
            <table>
            </HeaderTemplate>
            <ItemTemplate>
                <asp:Literal ID="Literal1" runat="server" Text="<tr>" ></asp:Literal>
                <asp:Literal ID="Literal2" runat="server" Text="<td>" ></asp:Literal>

                <asp:Literal ID="Literal3" runat="server" Text="</td>" ></asp:Literal>
                <asp:Literal ID="Literal4" runat="server" Text="</tr>" ></asp:Literal>
            </ItemTemplate>
            <FooterTemplate>
            </table>
            </FooterTemplate>
        </asp:Repeater>
    </div>
    </form>
</body>
</html>

2. code behind

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace ForumTest01
{
    public partial class dynamictextboxrepeater : System.Web.UI.Page
    {
        protected void Page_prerender(object sender, EventArgs e)
        {
            List<int> lst = new List<int>();
            for (int i = 1; i < 10; i++)
            {
                lst.Add(i);
            }

            Repeater1.DataSource = lst;
            Repeater1.DataBind();
        }

        protected void Repeater1_ItemDataBound(object sender, RepeaterItemEventArgs e)
        {
            if (e.Item.ItemType == ListItemType.AlternatingItem || e.Item.ItemType == ListItemType.Item)
            {
                TextBox tb = new TextBox();
                tb.ID = e.Item.DataItem.ToString();
                e.Item.Controls.AddAt(4, tb);
            }
        }
    }
}

Jake C

Re: Assigning Value to Programmatically Added Textbox(es)

04-20-2009, 2:24 AM

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9 point Member
mmmisa83
Member since 04-03-2007, 8:33 AM
Posts 12

Thanks. Paul's codes work. Other replies also help. Thanks again.

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