html and java script CRUD with checkbox highlight row

Question

0.00/5 (No votes)

See more:

hello friends, I need your help please!
I'm building javascript with html Crud,and trying to heighlight the row when check the checkbox. it colors just the first column- the Header !
plz help.
or maybe someone have something-code equals in html and javascript..

here is my code:

XML

<HTML>
<HEAD>
    <TITLE> Add/Remove dynamic rows in HTML table </TITLE>

<link rel="stylesheet" type="text/css" href="style.css">

    <SCRIPT language="javascript">
      function addRow(tableID) {

            var table = document.getElementById(tableID);

            var rowCount = table.rows.length;
            var row = table.insertRow(rowCount);

            var colCount = table.rows[0].cells.length;

            for(var i=0; i<colCount; i++) {

                var newcell = row.insertCell(i);

                newcell.innerHTML = table.rows[0].cells[i].innerHTML;

                //alert(newcell.childNodes);
                switch(newcell.childNodes[0].type) {


                    case "checkbox":
                            newcell.childNodes[0].checked = false;
                            break;
                    case "select-one":
                            newcell.childNodes[0].selectedIndex = 0;
                            break;
                }
            }
        }


        function deleteRow(tableID) {
            try {
            var table = document.getElementById(tableID);
            var rowCount = table.rows.length;

            for(var i=0; i<rowCount; i++) {
                var row = table.rows[i];
                var chkbox = row.cells[0].childNodes[0];
                if(null != chkbox && true == chkbox.checked) {
                    if(rowCount <= 1) {
                        alert("Cannot delete all the rows.");
                        break;
                    }
                    table.deleteRow(i);
                    rowCount--;
                    i--;
                  }
        }
            }
        catch(e) {
                    alert(e);
             }
        }




// when checkbox is checked.


function highlight(box, g)
{
     var color1 = 'yellow';
     var color2 = '';

     document.getElementById(g).style.background = (box.checked ? color1 : color2);
}

    </SCRIPT>

</HEAD>




<BODY>

<div>

    <TABLE id="dataTable">
        <tr id="g">
         <TD><INPUT type="checkbox" name="chk" onClick="highlight(this,'g')" /></TD>
         <th id="fName">First Name</th>
         <th>Last Name</th>
        </tr>

    </TABLE>
    <INPUT type="button" value="Delete Checked People" class="btnDelete" onclick="deleteRow('dataTable')" />
    <INPUT type="button" value="Add Person" class="btnAdd" onclick="addRow('dataTable')" />


</div>

</BODY>
</HTML>

Posted 2-Dec-14 4:54am

Member 10279189

Updated 2-Dec-14 4:58am

v2

Add a Solution

3 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Ishpreet Kaur · Accepted Answer · 2014-12-02T06:08:00

I have checked your code. Your code highlight the first row only because it gets the row with same ID='g'. And ID is always unique and can't be used more than once in same page.
The other rows which are dynamically generating on "Add Person" button click have no ID.
The rows are generating in this way.

XML

<table id="dataTable">
        <tbody><tr id="g">
         <td><input type="checkbox" name="chk" onclick="highlight(this,'g')"></td>
         <th id="fName">First Name</th>
         <th>Last Name</th>
        </tr>

    <tr><td><input type="checkbox" name="chk" onclick="highlight(this,'g')"></td><td>First Name</td><td>Last Name</td></tr><tr><td><input type="checkbox" name="chk" onclick="highlight(this,'g')"></td><td>First Name</td><td>Last Name</td></tr><tr><td><input type="checkbox" name="chk" onclick="highlight(this,'g')"></td><td>First Name</td><td>Last Name</td></tr></tbody></table>

You can check that the page rendered in this way that No ID has been assigned to other table rows. Provide ID dynamically to rows when they are created. You can refer these links:
http://stackoverflow.com/questions/19625646/javascript-adding-an-id-attribute-to-another-created-element[^]

http://www.dustindiaz.com/add-and-remove-html-elements-dynamically-with-javascript/[^]

SrikantSahu · Accepted Answer · 2014-12-02T06:09:00

Hi,

I have made few changes to your code. Introduced onclick event handler to the checkbox.

-------------------------------------------------------

HTML

<HTML>
<HEAD>
    <TITLE> Add/Remove dynamic rows in HTML table </TITLE>
 
<link rel="stylesheet" type="text/css" href="style.css">
 
    <SCRIPT language="javascript">
      function addRow(tableID) {
            var table = document.getElementById(tableID);
			var rowCount = table.rows.length;
            var row = table.insertRow(rowCount);
			var colCount = table.rows[0].cells.length;
			for(var i=0; i < colCount; i++) {
				var newcell = row.insertCell(i), cellNode =null;
				newcell.innerHTML = table.rows[0].cells[i].innerHTML;
				cellNode = newcell.childNodes[0];
				switch(cellNode.type) {
					case "checkbox":
							cellNode.checked = false;
							cellNode.id = "checkBox_"+i;
							cellNode.onclick = function (node) {
									return function () {
										highlight(node,row);
									};
							}(cellNode);
                            break;
                    case "select-one":
                            cellNode.selectedIndex = 0;
                            break;
                }
            }
        }
 

        function deleteRow(tableID) {
            try {
            var table = document.getElementById(tableID);
            var rowCount = table.rows.length;
 
            for(var i=0; i < rowCount; i++) {
                var row = table.rows[i];
                var chkbox = row.cells[0].childNodes[0];
                if(null != chkbox && true == chkbox.checked) {
                    if(rowCount <= 1) {
                        alert("Cannot delete all the rows.");
                        break;
                    }
                    table.deleteRow(i);
                    rowCount--;
                    i--;
                  }
        }
            }
        catch(e) {
                    alert(e);
             }
        }
	// when checkbox is checked.
	function highlight(checkBox,row)
	{
		 var color1 = "grey", color2 ="";
		 row.style.backgroundColor = (checkBox.checked ? color1 : color2);
	}
 
    </SCRIPT>
 
</HEAD>
<BODY>
<div>
 
    <TABLE id="dataTable" cellspacing="0" borderspacing='1' style='border: solid 1px black'>
        <tr id="g">
         <TD><INPUT type="checkbox" name="chk" id='checkBox_0' onclick="highlight(document.getElementById('checkBox_0'), document.getElementById('g'))"  /></TD>
         <th id="fName">First Name</th>
         <th>Last Name</th>
        </tr>
 
    </TABLE>
    <INPUT type="button" value="Delete Checked People" class="btnDelete" onclick="deleteRow('dataTable')" />
    <INPUT type="button" value="Add Person" class="btnAdd" onclick="addRow('dataTable')" />
</div>
 
</BODY>
</HTML>

jaket-cp · Accepted Answer · 2014-12-02T06:25:00

Here is an easy fix, it should work:

JavaScript

//function highlight(box, g)
function highlight(box)
{
     var color1 = 'yellow';
     var color2 = '';
     //document.getElementById(g).style.background = (box.checked ? color1 : color2);
	 box.parentNode.parentNode.style.background = (box.checked ? color1 : color2);
}

But take into consideration solution 1 comments, the reasoning behind why your code is not working.

html and java script CRUD with checkbox highlight row

3 solutions

Solution 1

Solution 2

Solution 3

Add your solution here

Preview 0