Dosen't work

[jteixeira]

Somebody can explain me why this dosen't workI'm workin in visual web developer 2005 in c#

Button1.Attributes.Add("onclick", "Label1.Visible = false;");

[aspnetguy]

The attributes refer to javascript events. You could to this

Button1.Attributes.Add("onclick", "document.getElementById('Label1').style.display='none';");

[jteixeira]

it dosen't work, the label are visible

[aspnetguy]

You setup the onclick attribute. When you click Button1 the label should disappear. Does this happen? Do you get any javascript errors?Please post the full code for this page and explain exactly what you want to happen

[jteixeira]

protected void Page_Load(object sender, EventArgs e)	{		//Imprimir página web corrent		Button1.Attributes.Add("onclick", "document.getElementById('Label1').style.display='none';");		Button1.Attributes.Add("onclick", "window.print();");  		if (Profile.i == "4")		{			Label1.Visible = true;			Button1.Visible = true;			Button2.Visible = true;		}		else		{			Label1.Visible = false;			Button1.Visible = false;			Button2.Visible = false;		}		if (Profile.i == "1" || Profile.i == "2" || Profile.i == "3" || Profile.i == "5" || Profile.i == "6")		{			Button3.Visible = true;		}  }protected void Button1_Click(object sender, EventArgs e)	{	}

when i click in the button the label1 dont' dissappear

[aspnetguy]

you have set the onclick for Button1 twice. This is causing a conflict. Change these 2 lines

Button1.Attributes.Add("onclick", "document.getElementById('Label1').style.display='none';");		Button1.Attributes.Add("onclick", "window.print();");

into

Button1.Attributes.Add("onclick","document.getElementById('Label1').style.display='none';window.print();");

[jteixeira]

there is no errors but the label1 is visible

[aspnetguy]

okay I think I know what is happening. The print dialog is coming up though, right?try this instead

Button1.Attributes.Add("onclick","document.getElementById('Label1').style.display='none';window.print();return false;");

Without the return false; the PostBack gets fired resetting the label to visible.

[jteixeira]

it works