Searches for an element by the ID, and returns the first occurrence.

Syntax

C#
public HtmlElement FindElementById( string id )

Parameters

id

Type: System.String

The ID that defines search condition of HTML elements.

Return Value

Type: Zennolab.CommandCenter.HtmlElement

The first element that matches the conditions defined by the ID, if found; otherwise, the result is void.

Example

The following code example demonstrates uses of the FindElementById method.

C#	Copy Code
public static int Execute(Instance instance) { instance.ClearCookie(); Tab tab = instance.MainTab; if ((tab.IsVoid) \|\| (tab.IsNull)) return -1; if (tab.IsBusy) tab.WaitDownloading(); tab.Navigate("lessons.zennolab.com"); if (tab.IsBusy) tab.WaitDownloading(); Document doc = tab.MainDocument; HtmlElement he = doc.FindElementById("overview"); if (he.IsVoid) return -1; return 0; }

Copy Code

public static int Execute(Instance instance)
{
    instance.ClearCookie();
 
    Tab tab = instance.MainTab;
    if ((tab.IsVoid) || (tab.IsNull)) return -1;
    if (tab.IsBusy) tab.WaitDownloading();
    tab.Navigate("lessons.zennolab.com");
    if (tab.IsBusy) tab.WaitDownloading();
            
    Document doc = tab.MainDocument;
            
    HtmlElement he = doc.FindElementById("overview");
    if (he.IsVoid) return -1;
        
    return 0;
}

PHP	Copy Code
public static function Execute($instance) { $instance->ClearCookie(); $tab = $instance->MainTab; if (($tab->IsVoid) \|\| ($tab->IsNull)) return -1; if ($tab->IsBusy) $tab->WaitDownloading(); $tab->Navigate("lessons.zennolab.com"); if ($tab->IsBusy) $tab.WaitDownloading(); $doc = $tab->MainDocument; $he = $doc->FindElementById("overview"); if ($he->IsVoid) return -1; return 0; }

PHP

Copy Code

public static function Execute($instance)
{
    $instance->ClearCookie();
 
    $tab = $instance->MainTab;
    if (($tab->IsVoid) || ($tab->IsNull)) return -1;
    if ($tab->IsBusy) $tab->WaitDownloading();
    $tab->Navigate("lessons.zennolab.com");
    if ($tab->IsBusy) $tab.WaitDownloading();
            
    $doc = $tab->MainDocument;
            
    $he = $doc->FindElementById("overview");
    if ($he->IsVoid) return -1;
        
    return 0;
}

Remarks

If element is not found then the IsVoid property is true.

Requirements

Target Platforms: Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family, Windows Vista, Windows Server 2008 family