Includes collection properties in objects, referencing other object properties in objects:
Copy Code code as follows:
/**
**json object data to form fields
*/
function Jsonobjecttoform (form, jsonobject) {
for (i = 0, max = Form.elements.length i < max; i++) {
e = Form.elements[i];
ename = E.name;
if (Ename.indexof ('. ') > 0) {
Dotindex = Ename.indexof ('. ');
ParentName = ename.substring (0, Dotindex);
ChildName = ename.substring (dotindex+1);
Iterative judgment ename, assembled into a JSON data structure
Evalue = Itervaluefromjsonobject (Jsonobject, ParentName, childname);
}else{
Evalue = Jsonobject[ename];
}
if (evalue && evalue!= "undefined" && evalue!= "null") {
Switch (e.type) {
Case ' checkbox ':
Case ' Radio ':
if (E.value = = Evalue) {
E.checked = true;
}
Break
Case ' hidden ':
Case ' password ':
Case ' textarea ':
Case ' text ':
E.value = Evalue;
Break
Case ' Select-one ':
Case ' select-multiple ':
for (j = 0; J < E.options.length; J + +) {
op = e.options[j];
Alert ("ename:" + ename + "; Op value: "+ Op.value +"; Evalue: "+ evalue);
if (Op.value = = Evalue) {
Op.selected = true;
}
}
Break
Case ' button ':
Case ' file ':
Case ' image ':
Case ' Reset ':
Case ' Submit ':
Default
}
}
}
}
/**
* There are two ways to read and write JSON arrays
* 1:a.bs[0].id
* 2:a["BS"][0]["id"]
* Convert form to JSON data format
*/
function Formtojsonobject (form) {
var jsonobject = {};
for (i = 0, max = Form.elements.length i < max; i++) {
e = Form.elements[i];
EM = new Array ();
if (E.type = = ' Select-multiple ') {
for (j = 0; J < E.options.length; J + +) {
op = e.options[j];
if (op.selected) {
Em[em.length] = Op.value;
}
}
}
Switch (e.type) {
Case ' checkbox ':
Case ' Radio ':
if (!e.checked) {break;}
Case ' hidden ':
Case ' password ':
Case ' Select-one ':
Case ' select-multiple ':
Case ' textarea ':
Case ' text ':
ename = E.name;
if (E.type = = ' Select-multiple ') {
Evalue = em;
}else{
Evalue = E.value.replace (New RegExp (' ([\\\\]) ', ' G '), ' \\$1 ');
}
Determine if it is an object type data
if (Ename.indexof ('. ') > 0) {
Dotindex = Ename.indexof ('. ');
ParentName = ename.substring (0, Dotindex);
ChildName = ename.substring (dotindex+1);
Iterative judgment ename, assembled into a JSON data structure
Iterjsonobject (Jsonobject, ParentName, ChildName, Evalue);
}else{
Jsonobject[ename] = Evalue;
}
Break
Case ' button ':
Case ' file ':
Case ' image ':
Case ' Reset ':
Case ' Submit ':
Default
}
}
return jsonobject;
}
/**
* Convert form element iterations to JSON data
*/
function Iterjsonobject (Jsonobject, ParentName, ChildName, Evalue) {
Parrayindex is used to determine whether an element is an array label
Parrayindex = Parentname.indexof (' [');
Determines whether the data is aggregated, not just the object property
if (Parrayindex < 0) {
var child = Jsonobject[parentname];
if (!child) {
Jsonobject[parentname] = {};
}
Dotindex = Childname.indexof ('. ');
if (Dotindex > 0) {
Iterjsonobject (Jsonobject[parentname], childname.substring (0, Dotindex), childname.substring (dotIndex+1), eValue);
}else{
Jsonobject[parentname][childname] = Evalue;
}
}else{
Parray = jsonobject[parentname.substring (0, Parrayindex)];
Initializes an array type if no JS array exists
if (!parray) {
Jsonobject[parentname.substring (0, parrayindex)] = new Array ();
}
Get the set subscript, and determine if the corresponding subscript exists JS object
arrayindex = parentname.substring (parrayindex+1, parentname.length-1);
var c = jsonobject[parentname.substring (0, Parrayindex)][arrayindex];
if (!c) {
Jsonobject[parentname.substring (0, parrayindex)][arrayindex] = {};
}
Dotindex = Childname.indexof ('. ');
if (Dotindex > 0) {
Iterjsonobject (jsonobject[parentname.substring (0, Parrayindex)][arrayindex], childname.substring (0, DotIndex), Childname.substring (dotindex+1), evalue);
}else{
Jsonobject[parentname.substring (0, parrayindex)][arrayindex][childname] = Evalue;
}
}
}
/**
* Iterative JSON data Objects set to form fields
*/
function Itervaluefromjsonobject (Jsonobject, ParentName, ChildName) {
Parrayindex is used to determine whether an element is an array label
Parrayindex = Parentname.indexof (' [');
Determines whether the data is aggregated, not just the object property
if (Parrayindex < 0) {
Dotindex = Childname.indexof ('. ');
if (Dotindex > 0) {
Return Itervaluefromjsonobject (Jsonobject[parentname], childname.substring (0, Dotindex), childname.substring ( dotindex+1));
}else{
return Jsonobject[parentname][childname]
}
}else{
Parray = jsonobject[parentname.substring (0, Parrayindex)];
Get the set subscript, and determine if the corresponding subscript exists JS object
arrayindex = parentname.substring (parrayindex+1, parentname.length-1);
var c = jsonobject[parentname.substring (0, Parrayindex)][arrayindex];
Dotindex = Childname.indexof ('. ');
if (Dotindex > 0) {
Return Itervaluefromjsonobject (jsonobject[parentname.substring (0, Parrayindex)][arrayindex], childName.substring ( 0, Dotindex), childname.substring (dotindex+1));
}else{
Return jsonobject[parentname.substring (0, Parrayindex)][arrayindex][childname]
}
}
}
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