textboxes | Aspspider's Weblog

dynamically generate some controls in the table’s td tags

October 9, 2007

Hi,Recently i had the follwing problem and i provided the solution for that one using the below code..My requirement is i have a table. and in that i have two rows(trs)
in first row i have two tds .In first td i have a textbox and in second td i have a button named “save”
In second row (tr) i have only one td ……..this td consists of a button named “add new row”if i click on the “add new row ” button another row has to be generated dynamically with textbox and button like first row.

Solution

<!–File:Dynamically_Generate_Row.aspx–><%@ Page Language=”C#” AutoEventWireup=”true”
CodeFile=”Dynamically_Generate_Row.aspx.cs”
Inherits=”Dynamically_Generate_Row” %><!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>Untitled Page</title>
</head>
<body>
    <form id=”form1″ runat=”server”>
    <div>
    <table>
    <% for (int i=0; i<_nRowCount; i++) {%>
     <tr>
     <td>
     <input type=”text” value=”” id=”text<%=i %>>”/>
     </td>
     <td>
     <input type=”button” value=”Save” id=”btn<%=i %>>” />
     </td>
     <% } %>     </tr>
     <tr>
     <td>
     <asp:Button ID=”btn_CreateRow” runat=”server” OnClick=”OnCreateRow” Text=”AddNew”/>
     </td>
     </tr>
    </table>

    </div>
    </form>
</body>
</html>
//File:Dynamically_Generate_Row.aspx.csusing System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;public partial class Dynamically_Generate_Row : System.Web.UI.Page
{
    public int _nRowCount=1;
    protected void Page_Load(object sender, EventArgs e)
    {
        if (null == Session[“row_count”])
            Session[“row_count”] = “1”;

        _nRowCount = System.Convert.ToInt32(Session[“row_count”]);
    }    protected void OnCreateRow(object sender, EventArgs e)
    {
        if (null == Session[“row_count”])
            Session[“row_count”] = “1”;
        else
        {
            int i = (System.Convert.ToInt32(Session[“row_count”]) + 1);
            Session[“row_count”] = i.ToString();
        }        _nRowCount = System.Convert.ToInt32(Session[“row_count”]);
    }
}