ASP:TEXTBOX TextChangedEvent Focus problem

[Guest]

Hi,

I have a number of text boxes on my web form. when the text is change the
serverside event TextChanged gets raised and I do some server side
validation. This is fine.

However, when the event has finished processing, I would expect focus to be
returned to the next textbox on the page - this does not happen.

My question is, how can I programatically in code behind set focus to a
specfied control.

 

[Eirik Eldorsen]

Check out this code:
http://www.csharphelp.com/archives/archive201.html

 

[Eliyahu Goldin]

Rob,

Client side javascript call myTextBox.focus() will do. You can emit this
statement from server-side code behind.

 

[John Bilbo]

Here is a piece of code.
Hope this helps!
Franck Quintana.

static string SetJavascriptFocus(Control Control, bool HighlightText) {

if(Control == null || Control.ID == null || Control.ID.Length == 0)

throw new ApplicationException("Impossible to give the focus to a control
which has no ID.");

StringBuilder oSb = new StringBuilder();

oSb.Append("document.getElementById(\"");

oSb.Append(Control.ClientID);

oSb.Append("\").focus();\r\n");

if(HighlightText && Control is TextBox) {

oSb.Append("document.getElementById(\"");

oSb.Append(Control.ClientID);

oSb.Append("\").select();\r\n");

}

return JavascriptEmbed(oSb.ToString());

}



/// <summary>

/// Embeds a javascript code with correct tags.

/// </summary>

/// <param name="value"></param>

/// <returns></returns>

/// <example>

/// <script type="text/javascript"><!--

/// document.getElementById("standard").focus();

/// //-->

/// </script>

/// </example>

public static string JavascriptEmbed(string value) {

return "<script type=\"text/javascript\"><!--\r" + (value.EndsWith("\r") ?
value : value + "\r") + "//-->\r</script>";

}

 

[Eirik Eldorsen]

NB! This code is IE only

This code is better:
http://www.dotnetbips.com/displayarticle.aspx?id=106

I'm trying to translate it into C#. Could you help me?

This is what i've done so far. Need help on the while loop:

public static void SetInitialFocus2(Control ctrl)
{
StringBuilder s = new StringBuilder();
s.Append("<SCRIPT LANGUAGE='JavaScript'>");
s.Append("function SetInitialFocus()");
s.Append("{");
s.Append(" document.");
Control p = ctrl.Parent;
while (Not typeof p Is System.Web.UI.HtmlControls.HtmlForm)
{
p = p.Parent;
}
s.Append(p.ClientID);
s.Append("['");
s.Append(ctrl.UniqueID);
s.Append("'].focus();");
s.Append("}");
s.Append("window.onload = SetInitialFocus;");
s.Append("</SCRIPT>");
ctrl.Page.RegisterClientScriptBlock("InitialFocus", s.ToString());
}

Check out this code:
http://www.csharphelp.com/archives/archive201.html

 

[Franck Quintana]

NB This code is for netscape, IE, Mozilla, firefox...

 

[Ian Frawley]

"Rob Shorney" wrote in message

Quick question: Is there any reason why you can't do your validation client
side with JavaScript?

if not then IMHO multiple postbacks for one page is a bit in-effiecient and
irratating to the user maybe do one postback once all the fields are
complete, validate the buggers then in the event of errors reshow the page
with the errors highlighted.

Ian