How to set the default button in content page using asp.net?

I need to set the content page default button. My code is like this:

<asp:Content ID="BodyContent" runat="server" ContentPlaceHolderID="MainContent" 
defaultbutton="BtnSearch" defaultfocus="TxtSearchValue">

It is working fine, but my master page menu have one image button like chat, I can press the enter key to fire image button click event but it does not fire default button in content page.

How to handle this type of issue?

Answers:

Thank you for visiting the Q&A section on Magenaut. Please note that all the answers may not help you solve the issue immediately. So please treat them as advisements. If you found the post helpful (or not), leave a comment & I’ll get back to you as soon as possible.

Method 1

1) You simply have to do:

this.Form.DefaultButton = this.btnId.UniqueID;

OR

2) Using Javascript:

function clickButton(e, buttonid)
{

  var evt = e ? e : window.event;

  var bt = document.getElementById(buttonid);

  if (bt)
  {
      if (evt.keyCode == 13)
      {
            bt.click();
            return false;
      }
  }
}

And from the code behind:
ContentPage.Attributes.Add("onkeypress", "javascript:return 
clickButton(event,'" + btnSearch.ClientID + "');");

Method 2

I solved a similar problem with the following code.

Thx: http://www.w3schools.com/aspnet/prop_webcontrol_panel_defaultbutton.asp

<form runat="server">
    <asp:Panel runat="server" DefaultButton="bt1">

        <asp:TextBox runat="server" />
        <asp:Button id="bt1" Text="Default" runat="server" />

    </asp:Panel>
</form>

Method 3

Wrap all the asp.net controls and buttons inside the Panel and set default button property of panel with the id of a button.

Method 4

Try this code

protected void Page_Load(object sender, EventArgs e)
    {
        this.form1.DefaultFocus = txtSearch.ClientID;
        this.Form.DefaultButton = btnSearch.UniqueID;
    }

Method 5

this.Page.Form.DefaultButton = btnSave.ID;


All methods was sourced from stackoverflow.com or stackexchange.com, is licensed under cc by-sa 2.5, cc by-sa 3.0 and cc by-sa 4.0

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