ErrorDetected Property (HtmlElementCollection)

Gets information about the error detected in the performance last command

Syntax

public bool ErrorDetected {get;}

Property Value

Type: System.Boolean

true if error detected in the performance last command; otherwise, false.

Remarks

If the HtmlElementCollection object does not indicate to the real html element collection then this property is true. Also objects of this class contains IsVoid property for identification of html element collection's existence. Almost all classes of ZennoLab.CommandCenter contains such properties. Use it for the correct execution of the code.

Example

The following code example uses the ErrorDetected property.

public static int Execute(Instance instance, IZennoPosterProjectModel project)
{
    // clear cookie
    instance.ClearCookie();
    
    // go to lessons.zennolab.com
    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();
    
    // find elements by tag
    HtmlElementCollection heCol = tab.FindElementsByTags("input:checkbox");
    
    // if error detected then return -1
    if (heCol.ErrorDetected) return -1;
    
    return 0;
}

public static function Execute($instance, $project)
{
    // clear cookie
    $instance->ClearCookie();
    
    // go to lessons.zennolab.com
    $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();
    
    // find elements by tag
    $heCol = $tab->FindElementsByTags("input:checkbox");
    
    // if error detected then return -1
    if ($heCol->ErrorDetected) return -1;
    
    return 0;
}

Requirements

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

Reference

HtmlElementCollection Class
HtmlElementCollection Members
IsVoid Property