Skip to main content

C#.Net - Dynamically create textbox in asp.net

By

 Aspx Code:

<!DOCTYPE html>
<html>
<head runat="server">
    <title>Dynamically create textboxes in ASP.Net</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <table>
            <tr>
                <td>
                    No of Text boxes
                </td>
                <td>
                    <asp:TextBox ID="txtNumbers" runat="server"></asp:TextBox>
                </td>
            </tr>
            <tr>
                <td>
                </td>
                <td>
                    <asp:Button ID="btnSubmit" runat="server" OnClick="btnSubmit_Click" Text="Submit" />
                </td>
        </table>
        <br />
      
    </div>
    </form>
</body>
</html>

 C#.Net Code:

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

public partial class DynamicControls : System.Web.UI.Page
{
    protected void btnSubmit_Click(object sender, EventArgs e)
    {
        int noofcontrols = Convert.ToInt32(txtNumbers.Text);
        for (int i = 1; i <= noofcontrols; i++)
        {
            TextBox NewTextBox = new TextBox();
            NewTextBox.ID = "TextBox" + i.ToString();
            NewTextBox.Style["Clear"] = "Both";
            NewTextBox.Style["Float"] = "Left";
            NewTextBox.Style["Top"] = "25px";
            NewTextBox.Style["Left"] = "100px";
            //form1 is a form in my .aspx file with runat=server attribute
            form1.Controls.Add(NewTextBox);
        }
    }
}

Equivalent VB.Net Code:


Imports System.Collections.Generic
Imports System.Linq
Imports System.Web
Imports System.Web.UI
Imports System.Web.UI.WebControls

Partial Public Class DynamicControls
    Inherits System.Web.UI.Page
    Protected Sub btnSubmit_Click(sender As Object, e As EventArgs)
        Dim noofcontrols As Integer = Convert.ToInt32(txtNumbers.Text)
        For i As Integer = 1 To noofcontrols
            Dim NewTextBox As New TextBox()
            NewTextBox.ID = "TextBox" & i.ToString()
            NewTextBox.Style("Clear") = "Both"
            NewTextBox.Style("Float") = "Left"
            NewTextBox.Style("Top") = "25px"
            NewTextBox.Style("Left") = "100px"
            'form1 is a form in my .aspx file with runat=server attribute
            form1.Controls.Add(NewTextBox)
        Next
    End Sub
End Class



Output:


No of Text boxes

Labels:

Comments

Post a Comment

Popular posts from this blog

Code To Convert rupees(numbers) into words using C#.Net

By
Introduction: In my previous article I have explained about how to validate emailid using javascript . In this article I am going to explain about code used to convert rupees(numbers) into words using C#.Net . Explanation: For explanation purpose I have a page. It has a textbox to input the numbers. And when you click on the convert to words button then it will convert the input numbers into words and shows it in the below label. Below is the C# code used to do this functionality. public static string NumbersToWords( int inputNumber) {     int inputNo = inputNumber;     if (inputNo == 0)         return "Zero" ;     int [] numbers = new int [4];     int first = 0;     int u, h, t;     System.Text. StringBuilder sb = new System.Text. StringBuilder ();     if (inputNo < 0)     { ...
16 comments
Read More...

C# Extension Methods Example

By
In this article i am going to explain about Extension Methods  with example. Extension methods enable you to "add" methods to existing types without creating a new derived type, recompiling, or otherwise modifying the original type. Extension methods are a special kind of static method, but they are called as if they were instance methods on the extended type. For client code written in C# and Visual Basic, there is no apparent difference between calling an extension method and the methods that are actually defined in a type. If you do implement extension methods for a given type, remember the following points: An extension method will never be called if it has the same signature as a method defined in the type. Extension methods are brought into scope at the namespace level. For example, if you have multiple static classes that contain extension methods in a single namespace named Extensions, they will all be brought into scope by the using Extensions; directive. ...
Post a Comment
Read More...

VBScript equivalent string functions in C#.Net

By
C# Method VBScript Description IndexOf() InStr Returns the position of the first occurrence of one string within another. The search begins at the first character of the string - InStrRev Returns the position of the first occurrence of one string within another. The search begins at the last character of the string ToLower() LCase Converts a specified string to lowercase SubString() Left Returns a specified number of characters from the left side of a string Length() Len Returns the number of characters in a string TrimStart() LTrim Removes spaces on the left side of a string TrimEnd() RTrim Removes spaces on the right side of a string Trim() Trim Removes spaces on both the left and the right side of a string SubString() M...
Post a Comment
Read More...