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Javascript allows you to select, reverse select, and delete tables.

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Author: User
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Javascript allows you to select, reverse select, and delete tables.

This example describes how to select, reverse select, and delete a table in javascript. Share it with you for your reference. The specific implementation method is as follows:

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<! DOCTYPE html PUBLIC "-// W3C // dtd xhtml 1.0 Transitional // EN"

Http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd>

<Html xmlns = "http://www.w3.org/1999/xhtml">

<Head>

<Meta http-equiv = "Content-Type" content = "text/html; charset = UTF-8"/>

<Title> You can select all tables to be deleted. </title>

<Style type = "text/css">

Body, table

{

Margin: 0;

Padding: 0;

Font-size: 14px;

}

Table, tr, th, td

{

Border: 1px solid # cdc;

}

Th

{

Background-color: green;

Width: 100px;

}

. OddColor

{

Background-color: # ccc;

}

. EvenColor

{

Background-color: # fcf;

}

. OverColor

{

Background-color: # dff;

}

</Style>

<Script type = "text/javascript">

// Define nested Arrays

Var datas = [["Zhang San", 30, "Nanchang"], ["Li Si", 25, "Beijing"], ["Wang Wu", 20, "Zhengzhou"],

["Zhao 6", 19, "Wuhan"], ["Li Mo", 18, "Shenzhen"], ["Luo Cheng", 33, "Chongqing"],

["Wang Ping", 31, "Tianjin"], ["Liu Ping", 22, "Shanghai"], ["Yang Li", 17, "Shijiazhuang"],

["Guo Li", 30, "Guangzhou"];

// Dynamically create a table

Function CreateMyTable (){

Var tblMain = document. getElementById ("tblMain ");

Var rowsCount = tblMain. rows. length;

Var addRow;

Var addCol;

Var detailInfos;

For (var I = 0; I <datas. length; I ++ ){

AddRow = tblMain. insertRow (rowsCount-1); // Add control data rows to the penultimate Column

AddCol = addRow. insertCell (-1 );

AddCol. innerHTML = "<input type = 'checkbox' name = 'item'/> ";

AddCol. align = "center"; // center the control column

DetailInfos = datas [I];

For (var j = 0; j <detailInfos. length; j ++ ){

AddCol = addRow. insertCell (-1 );

AddCol. innerHTML = detailInfos [j];

}

AddCol = addRow. insertCell (-1 );

AddCol. innerHTML = "<input type = 'button 'id = 'btndel" + I + "'value = 'delete' onclick = 'btndel (this)'/> ";

AddCol. align = "center"; // center the control column

RowsCount ++;

}

TableColor ();

}

// Set grid interval color and highlight

Var oldClassName; // remember the row background color

Function TableColor (){

Var tblMain = document. getElementById ("tblMain ");

Var rowNodes = tblMain. rows;

For (var I = 1; I <rowNodes. length-1; I ++) {// remove the first and last rows

If (I % 2 = 0 ){

RowNodes [I]. className = "evenColor ";

}

Else {

RowNodes [I]. className = "oddColor ";

}

RowNodes [I]. onmouseover = function (){

OldClassName = this. className;

This. className = "overColor ";

}

RowNodes [I]. onmouseout = function (){

This. className = oldClassName;

}

}

}

// Select all functions in the check box

Function checkAll (){

Var currentCheckNode = event. srcElement;

Var checkAllNodes = document. getElementsByName ("all ");

// Remove the all selected check boxes that are not clicked.

For (var I = 0; I <checkAllNodes. length; I ++ ){

If (currentCheckNode! = CheckAllNodes [I]) {

CheckAllNodes [I]. checked = false;

}

}

Var checkItemNodes = document. getElementsByName ("item ");

For (var I = 0; I <checkItemNodes. length; I ++ ){

CheckItemNodes [I]. checked = currentCheckNode. checked;

}

}

// Select a function

Function btnCheckboxSel (index ){

Var checkItemNodes = document. getElementsByName ("item ");

For (var I = 0; I <checkItemNodes. length; I ++ ){

If (index = 2 ){

CheckItemNodes [I]. checked =! CheckItemNodes [I]. checked;

}

Else {

CheckItemNodes [I]. checked = index;

}

}

}

// Delete button function for each row

Function btnDel (btn ){

Var tblMain = document. getElementById ("tblMain ");

Var delRowNode = btn. parentNode. parentNode;

Var sMsg = "are you sure you want to delete the name: [" + delRowNode. cells [1]. innerText + "], age: [" +

DelRowNode. cells [2]. innerText + "], city: [" +

DelRowNode. cells [3]. innerText + "] data? ";

If (window. confirm (sMsg )){

TblMain. tBodies [0]. removeChild (delRowNode );

TableColor ();

}

}

// Delete the selected Button Function

Function btnDelSelectRow (){

Var arrDel = new Array ();

Var pos = 0;

Var itemNodes = document. getElementsByName ("item ");

For (var I = 0; I <itemNodes. length; I ++ ){

If (itemNodes [I]. checked ){

ArrDel [pos] = itemNodes [I]. parentNode. parentNode;

Pos ++;

}

}

If (pos <= 0 ){

Return;

}

If (! Window. confirm ("Do you want to delete the selected data? "))

Return;

Var tblMain = document. getElementById ("tblMain ");

For (var I = 0; I <arrDel. length; I ++ ){

TblMain. tBodies [0]. removeChild (arrDel [I]);

}

}

Window. onload = CreateMyTable;

</Script>

</Head>

<Body>

<Table id = "tblMain" cellspacing = "0" cellpadding = "10px" align = "center">

<Tbody>

<Tr>

<Th> <input type = "checkbox" name = "all" onclick = "checkAll ()"/> select all </th>

<Th> name </th>

<Th> age </th>

<Th> city </th>

<Th> operation </th>

</Tr>

<Tr>

<Th> <input type = "checkbox" name = "all" onclick = "checkAll ()"/> select all </th>

<Th colspan = "4">

<Input type = "button" value = "select all" onclick = "btnCheckboxSel (1)"/>

<Input type = "button" value = "" onclick = "btnCheckboxSel (0)"/>

<Input type = "button" value = "invert" onclick = "btnCheckboxSel (2)"/>

<Input type = "button" value = "delete selected" onclick = "btnDelSelectRow ()"/>

</Th>

</Tr>

</Tbody>

</Table>

</Body>

</Html>

I hope this article will help you design javascript programs.

This article is an English version of an article which is originally in the Chinese language on aliyun.com and is provided for information purposes only. This website makes no representation or warranty of any kind, either expressed or implied, as to the accuracy, completeness ownership or reliability of the article or any translations thereof. If you have any concerns or complaints relating to the article, please send an email, providing a detailed description of the concern or complaint, to info-contact@alibabacloud.com. A staff member will contact you within 5 working days. Once verified, infringing content will be removed immediately.

Related Keywords:
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