我一直试图弄清楚如何以编程方式＆＃34;取消选中＆＃34; ng-grid上的一个复选框好几天了，我开始迷失自己的想法。解决这个问题可能很难。 我已经尝试了所有我能想到的东西，并且我已经尝试了我能够在互联网上找到的每一个例子。拜托，有人怜悯我。
网格显示正常，但我无法弄清楚如何在出现这种情况时取消选中复选框：＆＃34; if（！daysvalidfor || daysvalidfor＆lt; 0 || daysvalidfor＆gt; 100000）＆＃34;。这种情况应该发生在＆＃34; daysvalidfor＆＃34;当某人检查该给定行的复选框时，该字段为空;当发生这种情况时，我想＆＃34;撤消＆＃34;复选框使其再次为空。那就是它！我想做的就是有条件地取消选中复选框。简单，对吧？
以下是HTML中的相应网格：
<div id="trainingGrid"
class="gridStyle"
ng-grid="trainingGridOptions"
class="ngGrid"
ng-show="isLocationSelected && !isMeetingSelected()"
>
</div>
<div id="meetingGrid"
class="gridStyle"
ng-grid="meetingGridOptions"
class="ngGrid"
ng-show="isLocationSelected && !isTrainingSelected()"
>
</div>
在我彻底尝试解决此问题时，您会看到可能没有意义或被注释掉的代码。
managementApp.controller('managementController',
function ($scope, $timeout, $http) {
$scope.locationName;
$scope.myLocation;
$scope.locations = {};
$scope.trainingTemplates = {};
$scope.meetingTemplates = {};
$scope.getLocations = function(homeId) {
var data = contentClient.GetLocations(homeId);
$scope.locations = data;
return data;
//locations = data;
};
$scope.selectedGrid = 'training'; // this is the default value of the grid to display.
$scope.setSelectedGrid = function(selectedGrid){ $scope.selectedGrid = selectedGrid}
$scope.isTrainingSelected = function() {
if($scope.selectedGrid == "training")
{
return true;
}
};
$scope.isLocationSelected = false;
$scope.removeLocalTemplate = function(locationTemplateId, documentType){
var result = contentClient.RemoveLocationTemplate(locationTemplateId, documentType);
}
$scope.getLocationTemplates = function(type) {
var locationId = $scope.myLocation.Id;
if(locationId)
{
var data = {};
if(type == "training"){
data = contentClient.GetLocationTrainingTemplates(locationId);
$scope.trainingTemplates = data;
}
$("#trainingGrid").height(20*$scope.trainingTemplates.length);
return data;
}
//locations = data;
};
$scope.toggleTraining = function(templateId, name, masterTemplateId, isLocalTemplate, daysvalidforStr, row){
var oldCheckboxValue = $scope.rowHolder;
var daysvalidfor = parseInt(daysvalidforStr);
//$scope.master = false; // This line actually updates all of the values!!!
var tempData = angular.copy($scope.trainingGridOptions.$gridScope.trainingTemplates);
tempData.forEach(function(value, key){
if (key > 50){
tempData[key].isLocalTemplate = true;
//value.isLocalTemplate = true;
}
if (key < 50){
tempData[key].isLocalTemplate = false;
//value.isLocalTemplate = true;
}
});
$scope.trainingGridOptions.$gridScope.trainingTemplates = tempData;
/*
$scope.trainingGridOptions.$gridScope.renderedRows[6].entity.isLocalTemplate = false;
$scope.trainingGridOptions.$gridScope.renderedRows[7].entity.isLocalTemplate = true;
$scope.trainingGridOptions.$gridScope.renderedRows[8].entity.isLocalTemplate = true;
*/
//alert(templateId + name + masterTemplateId + isLocalTemplate + daysvalidfor);
// if $scope.rowHolder.isLocalTemplate == true, then construct the node.
// if $scope.rowHolder.isLocalTemplate == false, then destroy the node.
if ($scope.rowHolder.isLocalTemplate == true){ // means we are constructing
if(!daysvalidfor || daysvalidfor < 0 || daysvalidfor > 100000){
alert("The value of daysvalidfor must be a valid number between 0 and 100000 for " + name);
//$scope.rowHolder.isLocalTemplate = isLocalTemplate;
//$scope.row.entity.daysvalidfor = isLocalTemplate;
//$scope.row = row;
//$scope.rowHolder.isLocalTemplate = false; // $scope.rowHolder is undefined unless we provide row in the method parameters above.
//$scope.row.entity.isLocalTemplate = false; // $scope.row is undefined.
//row.entity.isLocalTemplate = false;
//$scope.update($scope.rowHolder.isLocalTemplate);
//var isChecked = document.getElementById("isLocalCheckbox").checked;
// Note: The isChecked variable value should match the value of $scope.rowHolder.isLocalTemplate.
//document.getElementById("isLocalCheckbox").checked = false;
// we want to uncheck it here because there was not a valid daysvalidfor value.
$scope.trainingGridOptions.$gridScope.row.entity.isLocalTemplate = false;
$scope.trainingTemplates = $scope.getLocationTemplates("training");
$scope.$apply; // does nothing.
// reload the nodes to reset the grid checkbox due to invalid argument.
}
else{ // otherwise, construct the node.
var locationId = $scope.myLocation.Id;
var destinationContainerId = 1577;
var result = contentClient.constructLocalTraining(locationId, templateId, name, masterTemplateId, isLocalTemplate, destinationContainerId, daysvalidfor);
}
}
if($scope.rowHolder.isLocalTemplate == false) { // means we unchecked the box to remove the node.
// note: templateId and masterTemplateId should not match in this case.
if(templateId != masterTemplateId){
var result = $scope.removeLocalTemplate(templateId, "localTrainingTemplate");
$scope.getLocationTemplates("training"); // refresh nodes. It should omit the existing one.
}
else{
alert("Impossible case will never evaluate to true. Check $scope.toggleTraining.");
}
}
}
$scope.invalidCheckbox = false;
//$scope.master = true;
$scope.selectLocation = function(location){
$scope.myLocation = location;
$scope.isLocationSelected = true;
};
var template = '<input class="ngSelectionHeader" name="localCheckbox" id="isLocalCheckbox" type="checkbox" ng-checked="master" ng-click="cacheRow(row.entity, row); toggleTraining(row.entity.Id, row.entity.Name, row.entity.masterTrainingId, row.entity.isLocalTemplate, row.entity.daysvalidfor, row)" />';
var newTemplate = '<div class="ngSelectionCell"><input tabindex="-1" class="ngSelectionCheckbox" type="checkbox" ng-model="row.entity.isLocalTemplate" ng-checked="row.entity.isLocalTemplate" ng-change="toggleTraining(row.entity.Id, row.entity.Name, row.entity.masterTrainingId, row.entity.isLocalTemplate, row.entity.daysvalidfor, row)" /></div>'
/*
var template = '<input class="ngSelectionHeader" name="localCheckbox" id="isLocalCheckbox" type="checkbox" ng-model="row.entity.isLocalTemplate" ng-change="cacheRow(row.entity, row); toggleTraining(row.entity.Id, row.entity.Name, row.entity.masterTrainingId, row.entity.isLocalTemplate, row.entity.daysvalidfor, row)" />';
var newTemplate = '<div class="ngSelectionCell"><input tabindex="-1" class="ngSelectionCheckbox" type="checkbox" ng-checked="row.selected" /></div>'*/
$scope.trainingGridOptions = {
data: 'trainingTemplates',
enableCellEdit: true,
//enableCellSelection: false,
enableRowSelection: false,
columnDefs: [
{field: 'Id', displayName: 'Id'},
{field: 'Name', displayName: 'Name'},
{field: 'masterTrainingId', displayName: 'masterTrainingId'},
// {field: 'isLocalTemplate', displayName: 'isLocalTemplate'},
{field: 'isLocalTemplate',
displayName: 'isLocalTemplate',
enableCellEditOnFocus: true,
cellTemplate: template},
{field: 'daysvalidfor',
displayName: 'daysvalidfor',
enableCellEditOnFocus: true,
cellTemplate: '<span ng-cell-text><input type="number" min="0" max="100000" ng-model="row.entity.daysvalidfor" ng-focus="cacheRow(row.entity)" ng-blur="updateEntity(row)" ></span>'
}
]
};
// see http://technpol.wordpress.com/2013/12/06/editable-nggrid-with-both-dropdowns-and-selects/
$scope.cacheRow = function(startValue, row) {
$scope.rowHolder = {};
$scope.row = row;
angular.copy(startValue, $scope.rowHolder);
$scope.rowHolder.isLocalTemplate = !row.entity.isLocalTemplate;
};
$scope.updateEntity = function(row){
//$scope.gridColumn = column;
//$scope.gridRow = row; // this wasn't commented out before.
//$scope.gridCell = cellValue;
//Code to prevent multiple ngBlur events
//http://technpol.wordpress.com/2013/12/06/editable-nggrid-with-both-dropdowns-and-selects/
/*if(!$scope.save) {
$scope.save = { promise: null, pending: false, row: null };
}
$scope.save.row = row.rowIndex;
if(!$scope.save.pending) {
$scope.save.pending = true;
$scope.save.promise = $timeout(function(){
// $scope.list[$scope.save.row].$update();
alert("We will save your record to the server, we're updating row: "
+ $scope.save.row + " to have: "
+ $scope.list[$scope.save.row].isLocalTemplate );
$scope.save.pending = false;
}, 500);
}*/
};
}
);
答案 0 :(得分：0)
你在那里有一条线，注释掉：
//document.getElementById("isLocalCheckbox").checked = false;
＆＃34; isvalidcheckbox＆＃34;可能是错的，但该行应删除支票。编辑：如果您取消评论。