ZennoLab Assemblies Documentation
ErrorDetected Property (HtmlElementCollection)
Example 
ZennoLab.CommandCenter Namespace > HtmlElementCollection Class : ErrorDetected Property
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: Desktop: Windows XP SP3 and older. Server: Windows Server 2003 and older.

See Also

Reference

HtmlElementCollection Class
HtmlElementCollection Members
IsVoid Property