Monday, October 1, 2012

jQuery attribute selector Example


In this post jQuery attribute selector Example, we shall see the various type selectors available in jQuery, and how to use them to filter out elements with specific attributes and values.



Running the Sample
To run the example code at your desk, create a new Asp.net page; copy the entire code below, change reference of the jQuery & Stylesheet files to point to your local directory.
Build and run the application.

Click on the
btnAttributeSelector button to view the selector Outputs.

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title>jQuery Selector</title>
    <script
        type="text/javascript"
        src="JavaScript/jquery-1.7.2.js"></script>
    <script
        type="text/javascript"
        src="JavaScript/jquery-ui-1.8.21.custom.min.js"></script>
    <link
        type="text/css"
        href="Stylesheet.css"
        rel="Stylesheet" />
    <script
        type="text/javascript"
        language="javascript">
        $(document).ready(function() {
            $('#btnAttributeSelector').click(function(event) {
                event.preventDefault();
                //
                // Attribute - ID Selector
                $("#txtName").each(function() {
                    alert('ID Selector:' + $(this).attr('id') + ' => ' + $(this).val());
                });                 
                //
                // Attribute - Class Selector
                $(".FocusText").each(function() {
                alert('Class Selector:' + $(this).attr('id'));
                });
                //
                // Attribute - Attribute Exists Selector
                $("[border]").each(function() {
                    alert('Attribute Exists Selector:' + $(this).attr('id'));
                });
                //
                // Attribute - Attribute Value In Selector
                $("[border='0']").each(function() {
                    alert('Attribute Value In Selector:' + $(this).attr('id'));
                });
                //
                // Attribute - Attribute with Type (text) Selector               
                $("input[type=text][class]").each(function() {
                    alert('Attribute with Type Selector:' + $(this).attr('id'));
                });      
                //
                // Attribute - Attribute with Type(text) and Value IN Selector               
                $("input[type=text][class='RedText']").each(function() {
                    alert('Attribute with Type(text) and Value IN Selector:' + $(this).attr('id'));
                });
                //
                // Attribute - Attribute with Type(text) and Value Not IN Selector          
                $("input[type=text][class!='RedText']").each(function() {
                    alert('Attribute with Type(text) and Value Not IN Selector:' + $(this).attr('id'));
                });
                //
                // Attribute - Attribute with Type(dropdown) and Value IN Selector              
                $("select[class='RedText']").each(function() {
                    alert('Attribute with Type(dropdown) and Value IN Selector:' + $(this).attr('id'));
                });
                //
                // Attribute - Attribute with Type(dropdown) and Value Not IN Selector 
                $("select[class!='RedText']").each(function() {
                    alert('Attribute with Type(dropdown) and Value Not IN Selector:' + $(this).attr('id'));
                });
                //               
                // Attribute - Attribute with checkbox type Selector               
                $("input[type=checkbox][checked]").each(function() {
                alert('Attribute with checkbox type Selector:' + $(this).attr('id'));
                });                                                                                                                             
            });           
    </script>       
</head>
<body>
<form id="frmSelector" runat="server">
<table>
    <tr>           
        <td>Name</td>
        <td>
            <asp:TextBox
                ID="txtName"
                CssClass="RedText"
                runat="server"></asp:TextBox>
        </td>
    </tr>
    <tr>           
        <td>Age</td>
        <td>
            <asp:TextBox
                ID="txtAge"
                Enabled="false"
                CssClass="FocusText"
                runat="server"></asp:TextBox>
        </td>
    </tr>  
    <tr>           
        <td>Password</td>
        <td>
            <asp:TextBox
                ID="txtPassword"
                CssClass="FocusText"
                TextMode="Password"
                runat="server"></asp:TextBox>
        </td>
    </tr>  
    <tr>           
        <td>Address</td>
        <td>
            <asp:TextBox
                ID="txtAddress"
                CssClass="FocusText"
                TextMode="MultiLine"
                runat="server"></asp:TextBox>
        </td>
    </tr>           
    <tr>           
        <td>Gender</td>
        <td>
            <asp:CheckboxList
                ID="drpGender"
                CssClass="RedText"
                runat="server">
                <asp:ListItem Value="" Text="-Select-"></asp:ListItem>   
                <asp:ListItem Value="M" Text="Male"></asp:ListItem>   
                <asp:ListItem Value="F" Text="Female"></asp:ListItem>   
            </asp:CheckboxList>
        </td>
    </tr> 
    <tr>           
        <td>Country</td>
        <td>
            <asp:CheckboxList
                ID="drpCountry"
                runat="server">
                <asp:ListItem Value="" Text="-Select-"></asp:ListItem>   
                <asp:ListItem Value="U" Text="USA"></asp:ListItem>   
                <asp:ListItem Value="K" Text="UK"></asp:ListItem>   
                <asp:ListItem Value="I" Text="India"></asp:ListItem>   
            </asp:CheckboxList>
        </td>
    </tr>      
    <tr>           
        <td>Status</td>
        <td>
             <asp:RadioButtonList 
                ID="radListStatus"
                CssClass="RedText"
                RepeatDirection="Horizontal"
                runat="server">
                <asp:ListItem Value="A" Text="Active"></asp:ListItem>   
                <asp:ListItem Value="I" Text="InActive"></asp:ListItem>   
            </asp:RadioButtonList>
        </td>
    </tr> 
    <tr>           
        <td>Skill sets</td>
        <td>
             <asp:CheckBoxList
                ID="chkListSkills"
                CssClass="RedText"
                RepeatDirection="Horizontal"
                runat="server">
                <asp:ListItem Value="A" Text="Asp.Net"></asp:ListItem>   
                <asp:ListItem Value="C" Text="C#"></asp:ListItem>   
                <asp:ListItem Value="S" Text="SQL Server"></asp:ListItem>   
                <asp:ListItem Value="O" Text="Oracle"></asp:ListItem>   
                <asp:ListItem Value="M" Text="My SQL"></asp:ListItem>   
            </asp:CheckBoxList>
        </td>
    </tr>
    <tr>           
        <td>Icon</td>
        <td>
            <img
                src="images\Users.JPG"
                id="imgUsersIcon"
                border="0"
                class="FocusText" />
        </td>
    </tr>  
    <tr>           
        <td>Profile Link</td>
        <td>
            <asp:HyperLink
                id="lnkProfile"
                runat="server"
                NavigateUrl="#"
                Text="View Profile"></asp:HyperLink>
        </td>
    </tr>       
    <tr>           
        <td>Hidden Text</td>
        <td>
            <input type="hidden" id="txtHidden" />
        </td>
    </tr>           
    <tr>           
        <td>Submit</td>
        <td colspan="2">
            <asp:Button
                ID="cmdSubmitButton"
                Text="Save"
                runat="server"></asp:Button>
        </td>
    </tr> 
    <tr>           
        <td>Reset</td>
        <td colspan="2">
            <input type="reset" id="cmdResetButton" value="Reset" />
        </td>
    </tr> 
    <tr>           
        <td>Button</td>
        <td colspan="2">
            <input type="button" id="cmdButton" value="Button" />
        </td>
    </tr>       
    <tr>           
        <td colspan="2">
             
        </td>
    </tr>  
   <tr>           
        <td colspan="2">
            <asp:Button
                ID="btnTypeSelector"
                Text="Type Selector"
                runat="server"></asp:Button>
        </td>
    </tr> 
   <tr>           
        <td colspan="2">
            <asp:Button
                ID="btnIDSelector"
                Text="ID Selector"
                runat="server"></asp:Button>
        </td>
    </tr>                                     
   <tr>           
        <td colspan="2">
            <asp:Button
                ID="btnAttributeSelector"
                Text="Attribute Selector"
                runat="server"></asp:Button>
        </td>
    </tr> 
   <tr>           
        <td colspan="2">
            <asp:Button
                ID="btnClassSelector"
                Text="Class Selector"
                runat="server"></asp:Button>
        </td>
    </tr>                                        
   <tr>           
        <td colspan="2">
            <asp:Button
                ID="btnStateSelector"
                Text="State Selector"
                runat="server"></asp:Button>
        </td>
    </tr>                                        
   <tr>           
        <td colspan="2">
            <asp:Button
                ID="btnHierarchySelector"
                Text="Hierarchy Selector"
                runat="server"></asp:Button>
        </td>
    </tr>                                            
</table>
</form>
</body>
</html>


Stylesheet.css

.RedText
{
      color:Red;
      border: 1px solid black;  
      font-family:Verdana;
      font-size:9pt;
}
.FocusText
{
      border: 1px solid blue;
      background-color: #FEDCBA;
      font-family:Verdana;
      font-size:9pt;   
}
.waterMark
{     background-color:#fedcba;
      font-family:Verdana;
      font-size:10pt;
} 
.Label
{
      color:Maroon;
      font-family:Verdana;
      font-size:10pt;
}

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