how to print barcode in asp net c# DOM SCRIPTING LIBRARIES in Font

Generate QR in Font DOM SCRIPTING LIBRARIES

APPENDIX DOM SCRIPTING LIBRARIES
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} with the jQuery each method: $('li').each(function(i){ alert( typeof this ); }); The jQuery each method, as well as other looping methods, uses a callback applied to each element in the list. The callback receives only the element's index in the list as an argument and the method executes in the context of the node, so this in the example refers to the li element itself. With these things in mind, let s see how you can use libraries to make element selection a lot more powerful.
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Selecting elements
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So far you've seen how you can select elements by ID, by tag, and by class name using the built-in DOM methods getElementById, getElementsByTagName, and getElementsByClassName, respectively. Selecting elements by ID is great, but selecting elements using the full range of CSS selectors is even better. Many libraries incorporate advanced selector methods such as the $ function in jQuery. With this method you can select: By ID with the pound sign $('#elementid') By class with a dot $('.element-class) By tag with a tag name $('tag')
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That's not really anything too special, but you can also use a variety of CSS selectors (http://www.w3.org/TR/css3-selectors/#selectors) to select specific elements.
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Note When an ID such as #elementid is used as the selector in the $ function, that function still returns a list of objects, but the list will have only one element instead of multiple. This allows you to use each and other jQuery methods on single elements.
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CSS selectors
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Beyond an ID's class and tags, here are a few examples of the advanced selectors you can use in most libraries: $('*') selects all elements. $('tag') selects all tag elements for each of the available HTML tags. $('tagA tagB') selects all tagB elements that are descendants of tagA elements. $('tagA,tagB,tagC') selects all tagA elements, tagB elements, and tagC elements. $('#id') and $('tag#id') are ID selectors for any ID or a specific tag-ID combination.
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APPENDIX DOM SCRIPTING LIBRARIES
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$('.className') and $('tag.className') are selectors that can be used for any class or tag class combination.
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You can also combine selectors such as $('#myList li') or $('ul li a.selectMe') to select any mix of descendant selectors separated by a space. jQuery also includes the following CSS 2.1 attribute selectors: $('tag[attr]') selects all tag elements that have attribute attr. $('tag[attr=value]') selects all tag elements where value is exactly equal to the attr attribute value. $('tag[attr*=value]') selects all tag elements where value is contained in the attr attribute value. $('tag[attr~=value]') selects all tag elements where value is a word contained in the attr attribute value (separated by spaces). $('tag[attr^=value]') selects all tag elements where value matches the beginning of the attr attribute value. $('tag[attr$=value]') selects all tag elements where value matches the end of the attr attribute value. $('tag[attr|=value]') selects all tag elements where value matches the first part of a hyphenated attr attribute value. $('tag[attr!=value]') selects all tag elements where value is not equal to attr.
You can also use a number of different child and sibling selectors, as follows: $('tagA > tagB') selects all tagB elements that are direct child descendants of tagA elements. $('tagA + tagB') selects all tagB sibling elements that immediately follow tagA elements. $('tagA ~ tagB') selects all elements with a preceding sibling tagB element.
Also, you can use several pseudo-class and pseudo-element selectors including these: $('tag:root') selects the tag element that is the root of the document. $('tag:nth-child(n)') selects all tag elements that are the nth children of their parents, counting from the first one. $('tag:nth-last-child(n)') selects all tag elements that are the nth child of their parents, counting from the last one. $('tag:nth-of-type(n)') selects all tag elements that are the nth sibling of their type, counting from the first one. $('tag:nth-last-of-type(n)') selects all tag elements that are the nth sibling of their type, counting from the last one. $('tag:first-child') selects any tag element that is the first child of its parents. $('tag:last-child') selects any tag element that is the last child of its parent.
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