我真的不确定如何解决。但是,我已经很接近解决方案了,现在只需这里的专家们一点帮助。我的工作提琴是here。页面加载后,将选中2个复选框。我的观点绑定如下
<tbody data-bind="foreach: dataOne">
<tr data-bind="css: { 'makeBold': $root.duplicates.indexOf(name1) !== -1 }" >
<td data-bind="text: id"></td><td > </td>
<td data-bind="text: display"></td><td > </td>
<td> </td>
<td>
<input type="checkbox" data-bind="checked: $root.duplicates.indexOf(name1) !== -1" />
</td>
</tr>
</tbody>
我的视图模型如下
var data1 = [{
name1: "one",
id: 1,
display: "Test1"
}, {
name1: "two",
id: 2,
display: "Test2"
}, {
name1: "three",
id: 3,
display: "Test3"
}];
var data2 = [{
name2: "five"
}, {
name2: "two"
}, {
name2: "three"
}];
var viewModel = {
dataOne: ko.observableArray(data1),
dataTwo: ko.observableArray(data2),
duplicates: ko.observableArray()
};
viewModel.dataTwo.push({
name: "four"
}); //add one on the end
var flattenedOne = ko.utils.arrayMap(viewModel.dataOne(), function (item) {
return item.name1;
});
var flattenedTwo = ko.utils.arrayMap(viewModel.dataTwo(), function (item) {
return item.name2;
});
var differences = ko.utils.compareArrays(flattenedOne, flattenedTwo);
//return a flat list of differences
ko.utils.arrayForEach(differences, function (difference) {
if (difference.status === 'retained') {
viewModel.duplicates.push(difference.value);
}
});
现在,当用户单击“更新”按钮时,它将再次加载数据,并且现在选中了3个复选框。我想要达到的是
当用户单击更新按钮时,应将css添加到表行,并且仅使该行变为粗体。
当用户单击更新按钮时,它不应选中该复选框。
因此,在我们的示例中,当用户单击“更新”按钮时,应将行设置为粗体,但不应选中此复选框。因此,只有第一行在单击更新按钮时才会以粗体显示。当前,当页面正在加载时,它使两行变为粗体,并检查这是错误的。仅单击更新按钮即可使行变为粗体。请帮助我。
最佳答案
希望这能解决您的问题。
选中此Fiddle
I have given separate condition using another observable .
HTML:-
<table>
<tbody data-bind="foreach: dataOne">
<tr data-bind="css: { 'makeBold': $root.duplicates.indexOf(name1) !== -1 }" >
<td data-bind="text: id"></td><td > </td>
<td data-bind="text: display"></td><td > </td>
<td> </td>
<td>
<input type="checkbox" data-bind="checked: $root.checkDuplicate.indexOf(name1) !== -1" />
</td>
</tr>
</tbody>
</table>
<button class="btn" data-bind="click: $root.UpdateData"> Update </button>
脚本:-
var data1 = [{
name1: "one",
id: 1,
display: "Test1"
}, {
name1: "two",
id: 2,
display: "Test2"
}, {
name1: "three",
id: 3,
display: "Test3"
}];
var data2 = [{
name2: "five"
}, {
name2: "two"
}, {
name2: "three"
}];
var viewModel = {
dataOne: ko.observableArray(data1),
dataTwo: ko.observableArray(data2),
duplicates: ko.observableArray(),
checkDuplicate : ko.observableArray() // new observable to handle condition
};
viewModel.UpdateData = function(){
data2 = [{
name2: "one"
}, {
name2: "two"
}, {
name2: "three"
}];
viewModel.dataTwo(data2);
var flattenedOne = ko.utils.arrayMap(viewModel.dataOne(), function (item) {
return item.name1;
});
var flattenedTwo = ko.utils.arrayMap(viewModel.dataTwo(), function (item) {
return item.name2;
});
var differences = ko.utils.compareArrays(flattenedOne, flattenedTwo);
//return a flat list of differences
ko.utils.arrayForEach(differences, function (difference) {
if (difference.status === 'retained' && viewModel.checkDuplicate().indexOf(difference.value) == -1 ) {
viewModel.duplicates.push(difference.value);
}
});
};
viewModel.dataTwo.push({
name: "four"
}); //add one on the end
var flattenedOne = ko.utils.arrayMap(viewModel.dataOne(), function (item) {
return item.name1;
});
var flattenedTwo = ko.utils.arrayMap(viewModel.dataTwo(), function (item) {
return item.name2;
});
var differences = ko.utils.compareArrays(flattenedOne, flattenedTwo);
//return a flat list of differences
ko.utils.arrayForEach(differences, function (difference) {
if (difference.status === 'retained') {
viewModel.checkDuplicate.push(difference.value);
}
});
ko.applyBindings(viewModel);
关于jquery - 将CSS运行时添加到表行并数据绑定(bind)行,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/15610845/