我真的不知道怎么解决。但是,我非常接近解决方案,现在只需要这里的专家提供一点帮助。我的工作 fiddle 是 here .当页面加载时,会选中 2 个复选框。我的 View 绑定(bind)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 View 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,它会再次加载数据,并且现在选中了 3 个复选框。我想要实现的是
当用户点击更新按钮时,它应该将 css 添加到表格行并且只将该行设为粗体。
当用户点击更新按钮时,它不应该选中复选框。
因此在我们的示例中,当用户单击更新按钮时,它应该使行显示为粗体,但不应选中复选框。所以只有第一行会在点击更新按钮时加粗。目前,当页面加载时,它会将 2 行加粗并检查哪个是错误的。它应该只点击更新按钮使行变粗。请帮帮我。
最佳答案
希望这能解决您的问题。
检查这个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 运行时添加到表行和数据绑定(bind)行,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/15610845/