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Dynamic html table operation

Source: Internet
Author: User
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1. Dynamic Operation of a table:

<Html>
<Head>
<Title> dynamically operate rows in a table </title>
</Head>
<Body>
<Table border = "0" width = "681" bgcolor = "#709EC0" cellSpacing = 1
CellPadding = 3 id = "DemoTable">
<Tr>
<Td width = "35" bgcolor = "# a4c2e8" align = "center">
<B> serial number </B>
</Td>
<Td width = "377" bgcolor = "# a4c2e8" align = "center">
<B> content </B>
</Td>
<Td clospan = '2' width = "143" bgcolor = "# a4c2e8" align = "center"
Colspan = "2">
<B> degree </B>
</Td>
<Td width = "96" bgcolor = "# a4c2e8" align = "center">
<B> select </B>
</Td>

</Tr>
<Tr>
<Td bgcolor = "# FFFFFF" width = "35" align = "center">
1
</Td>
<Td bgcolor = "# FFFFFF" width = "377" align = "center">
<Input name = "neirong" type = "text" size = "50" style = "float: left">
</Td>
<Td bgcolor = "# FFFFFF" width = "71" align = "center">
<Input type = "radio" name = "chengdu1" value = "Major">
Major
</Td>
<Td bgcolor = "# FFFFFF" width = "65" align = "center">
<Input type = "radio" name = "chengdu1" value = "general" checked>
Average
</Td>
<Td bgcolor = "# FFFFFF" width = "96" align = "center">
<Input type = "checkbox" name = "zhenggaizhuangtai">
</Td>
</Tr>
<Tr>
<Td bgcolor = "# FFFFFF" width = "35" align = "center">
2
</TD>
<TD bgcolor = "# ffffff" width = "377" align = "center">
<Input name = "neirong" type = "text" size = "50" style = "float: Left">
</TD>
<TD bgcolor = "# ffffff" width = "71" align = "center">
<Input type = "radio" name = "chengdu2" value = "Major">
Major
</TD>
<TD bgcolor = "# ffffff" width = "65" align = "center">
<Input type = "radio" name = "chengdu2" value = "general" checked>
Average
</Td>
<Td bgcolor = "# FFFFFF" width = "96" align = "center">
<Input type = "checkbox" name = "zhenggaizhuangtai" value = "0">
</Td>
</Tr>
<Tr>
<Td bgcolor = "# FFFFFF" width = "35" align = "center">
3
</Td>
<Td bgcolor = "# FFFFFF" width = "377" align = "center">
<Input name = "neirong" type = "text" size = "50" style = "float: left">
</Td>
<Td bgcolor = "# FFFFFF" width = "71" align = "center">
<Input type = "radio" name = "chengdu3" value = "Major">
Major
</Td>
<Td bgcolor = "# FFFFFF" width = "65" align = "center">
<Input type = "radio" name = "chengdu3" value = "general" checked>
Average
</Td>
<Td bgcolor = "# FFFFFF" width = "96" align = "center">
<Input type = "checkbox" name = "zhenggaizhuangtai">
</Td>
</Tr>
</Table>
<Div>
<P>
& Nbsp;
<A href = "#" onclick = "addRow ();"> Add more </a>
<A href = "#" onclick = "deleteObj ();"> Delete </a>
<Div>
</Body>
</Html>
<Script type = "text/javascript">
Var index = 3;
Var tableObj = document. getElementById ('demotable ');

Function addRow ()
{

Id = parseInt (index) + 1;
// Add rows and attributes
Var newTr = tableObj. insertRow ();

NewTr. id = id;
NewTr. bgColor = "# FFFFFF ";
NewTr. align = "center ";
// Add columns and attributes
Var newTd0 = newTr. insertCell ();
Var newTd1 = newTr. insertCell ();
Var newTd2 = newTr. insertCell ();
Var newTd3 = newTr. insertCell ();
Var newTd4 = newTr. insertCell ();

NewTd0.innerText = parseInt (index) + 1;

NewTd1.innerHTML = "<input name = 'neirong 'size = '50' style = 'float: left'> ";
NewTd2.innerHTML = "<input type = 'Radio 'name = '" + id + "'value = 'weight'> Major ";
NewTd3.innerHTML = "<input type = 'Radio 'name ='" + id + "'value = 'General' checked> General ";
NewTd4.innerHTML = "<input type = 'checkbox' name = 'zhenggaizhuangtai" + id + "'> ";

Index ++;
}
Function deleteObj (){
// If the last row of the table is reached, it cannot be deleted.
If (tableObj. rows. length = 1 ){
Alert ("prompt: the last row of the table has been reached and cannot be deleted! ");
Return false;
}

TableObj. deleteRow (-1 );
-- Index;
}
</Script>

 

2. traverse the first object of each column in the table

Function parse (){
Var tableObj = document. getElementById ("demoTab ");
Var hiddenStr = "";
For (I = 1; I <tableObj. rows. length; I ++ ){
Var trs = tableObj. rows [I];
// Traverse the first object in each column of each row
For (j = 1; j <trs. cells. length; j ++ ){
Var td = trs. cells [j];
If (td. childNodes [0]. type = 'text ')
{
.....
} Else if (td. childNodes [0]. type = 'Radio '){
.....
} Else if (td. childNodes [0]. type = 'checkbox '){
.....
}

}
HiddenStr + = "...";
}
// Put the processed result into a hidden domain
HiddenObj = document. createElement ("<input type = 'den den 'name = 'hiddenstrval'> ");
HiddenObj. value = hiddenStr;
PaichaInfo. appendChild (hiddenObj );
}

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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