HtmlElementCollection
Assembly: ZennoLab.CommandCenter
Full name: ZennoLab.CommandCenter.HtmlElementCollection
Represents a strongly typed list of html elements that can be accessed by index.
The HtmlElementCollection class contain the properties such as ErrorDetected and IsVoid. Their use necessary for the correct work of your code.
Properties
IsVoid
Property
Gets the specified collection is void collection or not.
Example
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 collection is void then return -1
if (heCol.IsVoid) return -1;
return 0;
}Example2
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 = $tab->FindElementsByTags("input:checkbox");
// if collection is void then return -1
if ($heCol->IsVoid) return -1;
return 0;
}ErrorDetected
Property
Gets information about the error detected in the performance last command
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
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;
}Example2
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;
}Count
Property
Gets the number of elements actually contained in the HtmlElementCollection.
The Count property it is the number of elements that are actually in the HtmlElementCollection.
Example
// find elements by tag
HtmlElementCollection heCol = tab.FindElementsByTags("input:checkbox");
// get count of collection
int count = heCol.Count;Example2
// find elements by tag
$heCol = $tab->FindElementsByTags("input:checkbox");
// get count of collection
$count = $heCol->Count;Elements
Property
Get copies the html elements of the HtmlElementCollection to a new array.
Example
// 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");
// get an array of elements
HtmlElement[] he = heCol.Elements;Example2
// 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");
// get an array of elements
$he = $heCol->Elements;Current
Property
Gets the element in the collection at the current position of the enumerator.
Methods
GetByNumber
Method
Gets the html element by specified number.
Parameters
| Параметр | Описание |
|---|---|
number | The zero-based number of the html element to get. |
Returns: The html element at the specified number.
Example
public static int Execute(Instance instance, IZennoPosterProjectModel project)
{
// clear cookie
instance.ClearCookie();
// go to lessons.zennolab.com
Tab tab = instance.MainTab;
if ((tab.IsVoid) || (tab.IsNull)) return -1;
if (tab.IsBusy) tab.WaitDownloading();
tab.Navigate("lessons.zennolab.com");
if (tab.IsBusy) tab.WaitDownloading();
// find elements by tag
HtmlElementCollection heCol = tab.FindElementsByTags("input:checkbox");
// if any element was not found
if (heCol.Count == 0) return -1;
// get last element by index (number)
HtmlElement he = heCol.GetByNumber(heCol.Count-1);
return 0;
}Example2
public static function Execute($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 = $tab->FindElementsByTags("input:checkbox");
// if any element was not found
if ($heCol->Count == 0) return -1;
// get last element by index (number)
$he = $heCol->GetByNumber($heCol->Count-1);
return 0;
}Add
Method
Adds a html element to the end of the HtmlElementCollection.
Parameters
| Параметр | Описание |
|---|---|
element | The html element to be added to the end of the HtmlElementCollection. |
Example
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 elments by tag
HtmlElementCollection heCol = tab.FindElementsByTags("input:checkbox");
// find elements by tag
HtmlElementCollection newHeCol = tab.FindElementsByTags("input:radio");
// add all elements from second to first collection
for (int i = 0; i < newHeCol.Count; i++) heCol.Add(newHeCol.Elements[i]);
return 0;
}Example2
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 elments by tag
$heCol = $tab->FindElementsByTags("input:checkbox");
// find elements by tag
$newHeCol = $tab->FindElementsByTags("input:radio");
// add all elements from second to first collection
for ($i = 0; $i < $newHeCol->Count; $i++) $heCol->Add($newHeCol->Elements[$i]);
return 0;
}AddRange
Method
Adds the html elements of the specified collection to the end of the HtmlElementCollection.
The order of the elements in the collection is preserved in the HtmlElementCollection.
Parameters
| Параметр | Описание |
|---|---|
elements | The collection whose html elements should be added to the end of the HtmlElementCollection. The collection itself cannot be null. |
Example
public static int Execute(Instance instance, IZennoPosterProjectModel project)
{
// clear cookie
instance.ClearCookie();
// go to lessons.zennolab.com
Tab tab = instance.MainTab;
if ((tab.IsVoid) || (tab.IsNull)) return -1;
if (tab.IsBusy) tab.WaitDownloading();
tab.Navigate("lessons.zennolab.com");
if (tab.IsBusy) tab.WaitDownloading();
// find elements by tag
HtmlElementCollection heCol = tab.FindElementsByTags("input:checkbox");
// find elements by tag
HtmlElementCollection newHeCol = tab.FindElementsByTags("input:radio");
// add second collection to first
heCol.AddRange(newHeCol);
return 0;
}Example2
public static function Execute($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");
// find elements by tag
$newHeCol = $tab->FindElementsByTags("input:radio");
// add second collection to first
$heCol->AddRange($newHeCol);
return 0;
}AddRange
Method
Adds the htm elements of the specified array to the end of the HtmlElementCollection.
The order of the elements in the collection is preserved in the HtmlElementCollection.
Parameters
| Параметр | Описание |
|---|---|
elements | The array whose html elements should be added to the end of the HtmlElementCollection. The collection itself cannot be null. |
Example
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");
// find elements by tag
HtmlElementCollection newHeCol = tab.FindElementsByTags("input:radio");
// add second collection to first
heCol.AddRange(newHeCol.Elements);
return 0;
}Example2
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");
// find elements by tag
$newHeCol = $tab->FindElementsByTags("input:radio");
// add second collection to first
$heCol->AddRange($newHeCol);
return 0;
}Insert
Method
Inserts a html element into the HtmlElementCollection at the specified index.
If index is equal to Count, item is added to the end of HtmlElementCollection.
Parameters
| Параметр | Описание |
|---|---|
element | The document to insert. |
index | The zero-based index at which html element should be inserted. |
Example
// find elements by tag
HtmlElementCollection heCol = tab.FindElementsByTags("input:checkbox");
// find element by name
HtmlElement he = instance.GetTabByAddress("page").GetDocumentByAddress("0").FindElementByName("rad");
// if collection is invalid then return -1
if ((heCol.IsVoid) || (heCol.ErrorDetected)) return -1;
// insert element to collection
heCol.Insert(he, 0);Example2
// find elements by tag
$heCol = $tab->FindElementsByTags("input:checkbox");
// find element by name
$he = $instance->GetTabByAddress("page")->GetDocumentByAddress("0")->FindElementByName("rad");
// if collection is invalid then return -1
if (($heCol->IsVoid) || ($heCol->ErrorDetected)) return -1;
// insert element to collection
$heCol->Insert($he, 0);InsertRange
Method
Inserts the html element of a collection into the HtmlElementCollection at the specified index.
If index is equal to Count, the elements are added to the end of HtmlElementCollection. The order of the elements in the collection is preserved in the HtmlElementCollection.
Parameters
| Параметр | Описание |
|---|---|
elements | The collection whose elements should be inserted into the HtmlElementCollection. The collection itself cannot be null. |
index | The zero-based index at which the new html elements should be inserted. |
Example
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 ((heCol.IsVoid) || (heCol.ErrorDetected)) return -1;
// find elements by tag
HtmlElementCollection newHeCol = tab.FindElementsByTags("input:radio");
if ((newHeCol.IsVoid) || (newHeCol.ErrorDetected)) return -1;
// insert second collection to first
heCol.InsertRange(newHeCol, 0);
return 0;
}Example2
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 = $tab->FindElementsByTags("input:checkbox");
if (($heCol->IsVoid) || ($heCol->ErrorDetected)) return -1;
// find elements by tag
$newHeCol = $tab->FindElementsByTags("input:radio");
if (($newHeCol->IsVoid) || ($newHeCol->ErrorDetected)) return -1;
// insert second collection to first
$heCol->InsertRange($newHeCol, 0);
return 0;
}InsertRange
Method
Inserts the html element of an array into the HtmlElementCollection at the specified index.
If index is equal to Count, the elements are added to the end of HtmlElementCollection. The order of the elements in the collection is preserved in the HtmlElementCollection.
Parameters
| Параметр | Описание |
|---|---|
elements | The array whose elements should be inserted into the HtmlElementCollection. The array itself cannot be null. |
index | The zero-based index at which the new html element should be inserted. |
Example
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 ((heCol.IsVoid) || (heCol.ErrorDetected)) return -1;
// find elements by tag
HtmlElementCollection newHeCol = tab.FindElementsByTags("input:radio");
if ((newHeCol.IsVoid) || (newHeCol.ErrorDetected)) return -1;
// insert second collection to first
heCol.InsertRange(newHeCol.Elements, 0);
return 0;
}Example2
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 = $tab->FindElementsByTags("input:checkbox");
if (($heCol->IsVoid) || ($heCol->ErrorDetected)) return -1;
// find elements by tag
$newHeCol = $tab->FindElementsByTags("input:radio");
if (($newHeCol->IsVoid) || ($newHeCol->ErrorDetected)) return -1;
// insert second collection to first
$heCol->InsertRange($newHeCol->Elements, 0);
return 0;
}Remove
Method
Removes the element at the specified index of the HtmlElementCollection.
Parameters
| Параметр | Описание |
|---|---|
index | The zero-based index of the html element to remove. |
Example
// find elements by tag
HtmlElementCollection heCol = tab.FindElementsByTags("input:checkbox");
// remove last element
heCol.Remove(heCol.Count-1);Example2
// find elements by tag
$heCol = $tab->FindElementsByTags("input:checkbox");
// remove last element
$heCol->Remove($heCol->Count-1);IndexOf
Method
Searches for the specified object and returns the zero-based index of the first occurrence within the entire HtmlElementCollection.
The HtmlElementCollection is searched forward starting at index and ending at the last element.
Parameters
| Параметр | Описание |
|---|---|
element | The document to locate in the HtmlElementCollection. |
Returns: The zero-based index of the first occurrence of item within the entire HtmlElementCollection, if found; otherwise, –1.
Example
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");
// get last element
HtmlElement he = heCol.Elements[heCol.Count-1];
// get index of 'he' in collection
int index = heCol.IndexOf(he);
return 0;
}Example2
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");
// get last element
$he = $heCol->Elements[$heCol->Count-1];
// get index of 'he' in collection
$index = $heCol->IndexOf($he);
return 0;
}AttributesToString
Method
Returns the attributes of all elements of the collection with the given name and assembles them into text. The attributes recorded through a line terminator.
Parameters
| Параметр | Описание |
|---|---|
attrName | Attribute name. |
Returns: Attributes of all elements of the collection with the given name in text form.
Example
// find elements by tag
HtmlElementCollection heCol = tab.FindElementsByTags("input:checkbox");
// get attributes to string
string result = heCol.AttributesToString("FullTagName");Example2
// find elements by tag
$heCol = $tab->FindElementsByTags("input:checkbox");
// get attributes to string
$result = $heCol->AttributesToString("FullTagName");AttributesToString
Method
Returns the attributes of all elements of the collection with the given name and assembles them into text. The attributes recorded through the specified delimiter.
Parameters
| Параметр | Описание |
|---|---|
attrName | Attribute name. |
delemiter | Delimiter that separates attributes in the text. |
Returns: Attributes of all elements of the collection with the given name in text form
Example
// find elements by tag
HtmlElementCollection heCol = tab.FindElementsByTags("input:checkbox");
// get attributes to string
string result = heCol.AttributesToString("FullTagName", ":");Example2
// find elements by tag
$heCol = $tab->FindElementsByTags("input:checkbox");
// get attributes to string
$result = $heCol->AttributesToString("FullTagName", ":");GetNull
Method
Возвращает пустой элемент
GetEnumerator
Method
Returns an enumerator that iterates through a collection.
Returns: An IEnumerator object that can be used to iterate through the collection.
Dispose
Method
Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.
MoveNext
Method
Advances the enumerator to the next element of the collection.
Reset
Method
Sets the enumerator to its initial position, which is before the first element in the collection.
Fields
ZpIds
Field
id элементов, которые находятся в этой коллекции