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Detailed analysis of jquery iframe operation_jquery

WBOYOriginal: 2016-05-16 17:13:501103browse

Use jquery to operate iframe

1. There are two ifames in the content

<br><iframe id="mainiframe..

jQuery in leftiframe changes the src code of mainiframe:
$("#mainframe",parent.document.body).attr("src","http://www.radys.cn")

2. If there is an ifame with the ID of mainiframe in the content
</ifame> <br>ifame contains a someID <br><div id="someID">you want to get this content</div> <br>Get the content of someID</p> <p> $("#mainiframe").contents().find("someID").html() html or $("#mainiframe").contains().find("someID").text() value </p> <p><strong>3. Select all radio buttons in the IFRAME in the parent window <br></strong>$(window.frames["iframe1"].document).find("input[@type=' radio']").attr("checked","true");</p> <p>Then choosing the id is naturally to still use the find method <br>$(window.frames["iframe1"].document).find("#id") </p> <p><strong>4. As shown above <br></strong> jQuery in leftiframe operates the content of mainiframe someID <br> $("#mainframe",parent.document.body).contents(). find("someID").html() or $("#mainframe",parent.document.body).contents().find("someID").val() </p> <p><font style="BACKGROUND-COLOR: #ccffff">Use JavaScript to manipulate iframes </font></p> <p><strong>References between frames </strong></p> <p>All frames in a page are provided as attributes of the window object in the form of a collection. For example: window.frames represents the collection of all frames in the page, which is similar to form objects, link objects, picture objects, etc. The difference is that these collections are properties of the document. Therefore, to reference a subframe, you can use the following syntax: </p> <p>window.frames["frameName"]; </p> <p>window.frames.frameName </p> <p>window.frames[index] </p> <p> Among them, the word window can also be replaced or omitted with self. Assuming that frameName is the first frame in the page, the following writing methods are equivalent: </p> <p>self.frames["frameName"] </p> <p>self.frames[0] </p> <p>frames[0] </p> <p>frameName </p> <p>Each frame corresponds to an HTML page, so this frame is also an independent browser window. It has all the properties of a window. The so-called reference to the frame is also a reference to the window object. With this window object, you can easily operate the pages in it, such as using the window.document object to write data to the page, using the window.location property to change the page in the frame, etc. </p> <p>The following introduces the mutual references between different levels of frameworks: </p> <p><strong><font style="COLOR: #ff0000">1． Reference from parent frame to child frame </font></strong></p> <p>Knowing the above principles, it is very easy to reference the child frame from the parent frame, that is: </p> <p>window.frames["frameName"]; </p> <p>This references the subframe named frameName within the page. If you want to reference a subframe within a subframe, according to the nature of the referenced frame, which is actually the window object, you can implement it like this: </p> <p>window.frames["frameName"].frames["frameName2"]; </p> <p>In this way, the second-level sub-frame is referenced, and by analogy, multi-layer framework references can be achieved. </p> <p><strong><font style="COLOR: #ff0000">2. Reference from child frame to parent frame </font></strong></p> <p>Each window object has a parent attribute, representing its parent frame. If the frame is already a top-level frame, window.parent also represents the frame itself. </p> <p><strong><font style="COLOR: #ff0000">3． References between sibling frameworks </font></strong></p> <p>If two frames are sub-frames of the same frame, they are called sibling frames and can reference each other through the parent frame. For example, a page includes 2 sub-frames: </p> <p><frameset rows="50%,50%"> </p> <p><frame src="1.html" name="frame1" /> </p> <p><frame src="2.html" name="frame2" /> </p> <p></frameset> </p> <p>You can use the following statement in frame1 to reference frame2: </p> <p>self.parent.frames["frame2"]; </p> <p><strong><font style="COLOR: #ff0000">4． Mutual references between different levels of frameworks </font></strong></p> <p>The hierarchy of frames is for top-level frames. When the levels are different, as long as you know the level where you are and the level and name of the other frame, you can easily access each other by using the properties of the window object referenced by the frame, for example: </p> <p>self.parent.frames["childName"].frames["targetFrameName"]; </p> <p><strong><font style="COLOR: #ff0000">5. Reference to the top-level frame </font></strong></p> <p>Similar to the parent attribute, the window object also has a top attribute. It represents a reference to the top-level frame, which can be used to determine whether a frame itself is a top-level frame, for example: </p> <p>//Determine whether this frame is a top-level frame </p> <p>if(self==top){ </p> <p>//dosomething </p> <p>} </p></div><div class="nphpQianMsg"><div class="clear"></div></div><div class="nphpQianSheng"><span>Statement：</span><div>The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. 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