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i have created textboxes dynamically in c#.

TextBox MyTextBox=new TextBox();
MyTextBox.ID = "tb" +""+ ViewState["num"];
MyTextBox.Width = 540;
MyTextBox.Height = 60;
MyTextBox.TextMode = TextBoxMode.MultiLine;

this.Controls.Add(MyTextBox);
Posted
Comments
Prasad_Kulkarni 5-Sep-12 3:05am    
..and your question is??
Masroor Ansari 25-Oct-13 6:20am    
two textboxes at a time dynamically
kumar2233 5-Sep-12 3:08am    
how to add dynamically create textbox controls in c#.
♥…ЯҠ…♥ 5-Sep-12 3:12am    
Already you have mentioned that, then what you are seeking?
Expecting to create dynamic text boxes n number of times? or anything?
kumar2233 5-Sep-12 3:15am    
yes. i want n no of times to create textboxes.

You have already added control in code you mentioned:
C#
Button button1=new Button();
button1.Text="dynamic button";
button1.Left=10; button1.Top=10;  //the button's location
this.Controls.Add(button1); //this is how you can add control


Please refer;
Code: Adding Controls at Run Time (Visual C#)[^]
Adding Controls to an ASP.NET form Dynamically[^]

ASP.NET Dynamic Controls[^]
 
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How we Dynamically Create TextBoxes in ASP.NET and get the Text of that TextBoxes :-

using System;
using System.Configuration;
using System.Web.UI.WebControls;
using System.Data.SqlClient;

public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
int addedBooks = 2;// Set Required Number of Dynamic TextBoxes
ViewState["addedBooks"] = addedBooks;
CreateDynamicTextBox();
}
else
{
//if postback dynamic generated controls are invisible
//so we can bind in each post back
CreateDynamicTextBox();
}

}

//Method for Creating Dynamic TextBoxes
protected void CreateDynamicTextBox()
{
int addedBooks =Convert.ToInt16(ViewState["addedBooks"]);
for (int i = 0; i < addedBooks; i++)
{
Literal lt1 = new Literal();
lt1.Text = "Book Name : " + (i + 1) + " ";
pnl1.Controls.Add(lt1);// "pnl1" is a id of Panel

TextBox MyTextBox = new TextBox();
//Assigning the textbox ID name
MyTextBox.ID = "tb" + i;
MyTextBox.Width = 100;
MyTextBox.Height = 15;
MyTextBox.Text = String.Empty;
pnl1.Controls.Add(MyTextBox);

Literal lt = new Literal();
lt.Text = "
";
pnl1.Controls.Add(lt);
}
}

//Find Text of Dynamic TextBoxes on Button Click
protected void btnSubmit_Click(object sender, EventArgs e)
{
int NoOfDynamicTextBoxes = Convert.ToInt32(ViewState["addedBooks"]);
String[] books = new String[NoOfDynamicTextBoxes];
for (int i = 0; i < NoOfDynamicTextBoxes; i++)
{
String txtId = "tb" + i;// Produce id of Dynamically created TextBoxes
TextBox txtUserName = pnl1.FindControl(txtId) as TextBox;
if (txtUserName != null)
{
books[i] = txtUserName.Text;
}
}
}
}
 
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Comments
cooldiv4u 16-Dec-13 11:32am    
Hi, i am having addnewtextbox button which will add new textboxes everytime i click on it. I dont want to have postback everytime hence i have used update panel. But i am not able to add textboxes in update panel
Code snippet to create a textbox control for n number of times,
//Declaring the variable with limit
int n=5;
for (int i=0;i<n;i++)
{
TextBox MyTextBox=new TextBox();
//Assigning the textbox ID name 
MyTextBox.ID = "tb" +""+ ViewState["num"] + i;
MyTextBox.Width = 540;
MyTextBox.Height = 60;
MyTextBox.TextMode = TextBoxMode.MultiLine;
this.Controls.Add(MyTextBox);
}


I hope this could help you.

With regards
R.K.
 
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v3
Comments
kumar2233 5-Sep-12 3:32am    
ur idea is correct. in asp.net , all of controls are running on server side.

here no need to pass runat="server".

I'm getting error like this.

System.Web.HttpException: Control 'tb0' of type 'TextBox' must be placed inside a form tag with runat=server.
renatocunha 26-Oct-19 23:48pm    
Use

this.Form.Controls.Add(MyTextBox);
♥…ЯҠ…♥ 26-Oct-12 5:48am    
I didnt get you... can u elaborate your question.
kumar2233 5-Sep-12 4:22am    
Ya The problem is sovled. Thnx prabakar...
♥…ЯҠ…♥ 5-Sep-12 5:03am    
Welcome pal.....
C#
TextBox txt = new TextBox();

    txt.ID = ID;

    txt.AutoPostBack = true;

    txt.TextChanged += new EventHandler(OnTextChanged);

    this.Form1.Controls.Add(txt);
 
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