CODEWITHSUNDEEP
c#asp.netwebformscode-behind
JB's
JB's

Reputation: 626

Get Set values of TextBox Control from server side

Let say I have this code on Page load of ASP.NET Webform

protected void Page_Load(object sender, EventArgs e)
{
    TextBox1.Text = "123";
}

and this is my control in aspx file

<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
<asp:Button ID="Button1" runat="server" Text="Button" OnClick="Button1_Click" />

If I change the textbox data from 123 to 12548 or any thing in the front end and then I click the button Now in this is my code behind button click event

protected void Button1_Click(object sender, EventArgs e)
{
    string s = TextBox1.Text;
}

Now in TextBox1.Text I should be getting 12548 or updated value instead I am getting 123 which I have already set in page load.

Now I want to get the updated value, how may I do it the right way.

Upvotes: 0

Views: 1430

Answers (3)

Caspar Kleijne
Caspar Kleijne

Reputation: 21864

Wrap it in a NOT is Postback

  protected void Page_Load(object sender, EventArgs e)
{ 
 if(!IsPostBack)
    {
      TextBox1.Text = "123";
    }
}

or remove it completely:

protected void Page_Load(object sender, EventArgs e)
{
  //not here
}

<asp:TextBox ID="TextBox1" Text="123" runat="server"></asp:TextBox>

Upvotes: 1

JB&#39;s
JB&#39;s

Reputation: 626

The problem was this "In ASP.Net every time you cause a postback of any kind, including handling events like button clicks, you're working with a brand new instance of your page class that must be rebuilt from scratch. Any work you've done previously to build the page on the server is gone. That means running the entire page life cycle, including your page load code, and not just the click code.

Every time you perform any event in the front end it will recreate the page and call the pageload method again and the page would be actually reset. To avoid it one should use the following code

    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostback)
        {
             //default code
        }
    }

Upvotes: 0

Romy Mathews
Romy Mathews

Reputation: 827

Modify the Page_Load as follows:

protected void Page_Load(object sender, EventArgs e)
{
    if (!IsPostback)
    {
        TextBox1.Text = "123";
    }
}

Upvotes: 1

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