QuerySelector Method (Tab)

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

Syntax

public HtmlElement QuerySelector( 
   string selector,
   int number
)

Parameters

selector

Type: System.String

Css selector for search the element.

number

Type: System.Int32

The item number in a collection of matching items. Default value is 0.

Return Value

Type: Zennolab.CommandCenter.HtmlElement

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

Remarks

If html element was not found then this method returns the HtmlElement object in which IsVoid or IsNill property is "true".

Example

The following code example demonstrates uses of the FindElementByTag method.

// 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 html element by css selector
var he = tab.QuerySelector(".inputs", 1);
if (he.IsVoid) return -2;
he.Click();

Requirements

Target Platforms: Desktop: Windows XP SP3 and older. Server: Windows Server 2003 and older.

Reference

Tab Class
Tab Members
FindElementByAttribute Method
FindElementById Method
FindElementByName Method
FindElementByTag Method
FindElementByXPath Method
FindElementsByAttribute Method
FindElementsById Method
FindElementsByName Method
FindElementsByTags Method
FindElementsByXPath Method
GetElementFromPoint Method
GetHtmlElement Method
QuerySelectorAll Method