Javascript Ag网格动态设置列和行数据
我有一个TypeScript类,我在其中调用一个方法,该方法调用后端api从服务器获取数据,并将其放入网格。目前,我有硬编码的列和行,只是为了测试我将如何做到这一点。当我像下面的例子一样放置列和行设置代码时,我正确地填充了网格Javascript Ag网格动态设置列和行数据,javascript,angular,typescript,ag-grid,Javascript,Angular,Typescript,Ag Grid,我有一个TypeScript类,我在其中调用一个方法,该方法调用后端api从服务器获取数据,并将其放入网格。目前,我有硬编码的列和行,只是为了测试我将如何做到这一点。当我像下面的例子一样放置列和行设置代码时,我正确地填充了网格 export class FooComponent { private columnDefs = []; private rowData = []; private gridOptions: GridOptions; private data: any;
export class FooComponent {
private columnDefs = [];
private rowData = [];
private gridOptions: GridOptions;
private data: any;
constructor(private http:HttpClient ) {
this.getFoo();
this.gridOptions = <GridOptions>{};
this.gridOptions.columnDefs = [
{headerName: 'Make', field: 'make' },
{headerName: 'Model', field: 'model' },
{headerName: 'Price', field: 'price'}
];
this.gridOptions.rowData = [
{ make: 'Toyota', model: 'Celica', price: 35000 },
{ make: 'Ford', model: 'Mondeo', price: 32000 },
{ make: 'Porsche', model: 'Boxter', price: 72000 }
];
}
getFoo(){
this.http.get(`https://xxx`).subscribe(response => {
this.data = response;
}, error => {
console.log(error);
});
}
导出类组件{
私有columnDefs=[];
私有行数据=[];
私有网格选项:网格选项;
私人资料:任何;
构造函数(专用http:HttpClient){
这个.getFoo();
this.gridOptions={};
this.gridOptions.columnDefs=[
{headerName:'Make',field:'Make'},
{headerName:'Model',字段:'Model'},
{headerName:'Price',字段:'Price'}
];
this.gridOptions.rowData=[
{品牌:'Toyota',型号:'Celica',价格:35000},
{品牌:福特,型号:蒙迪欧,价格:32000},
{品牌:'Porsche',型号:'Boxter',价格:72000}
];
}
getFoo(){
这是http.get(`https://xxx`).订阅(响应=>{
这个数据=响应;
},错误=>{
console.log(错误);
});
}
但是,当我将列和行设置代码放入getFoo方法中时(我需要它),我的网格数据没有被设置,我得到了一个加载框
export class FooComponent {
private columnDefs = [];
private rowData = [];
private gridOptions: GridOptions;
private data: any;
constructor(private http:HttpClient ) {
this.getFoo();
}
getFoo(){
this.http.get(`https://xxx`).subscribe(response => {
this.data = response;
this.gridOptions = <GridOptions>{};
this.gridOptions.columnDefs = [
{headerName: 'Make', field: 'make' },
{headerName: 'Model', field: 'model' },
{headerName: 'Price', field: 'price'}
];
this.gridOptions.rowData = [
{ make: 'Toyota', model: 'Celica', price: 35000 },
{ make: 'Ford', model: 'Mondeo', price: 32000 },
{ make: 'Porsche', model: 'Boxter', price: 72000 }
];
}, error => {
console.log(error);
});
}
导出类组件{
私有columnDefs=[];
私有行数据=[];
私有网格选项:网格选项;
私人资料:任何;
构造函数(专用http:HttpClient){
这个.getFoo();
}
getFoo(){
这是http.get(`https://xxx`).订阅(响应=>{
这个数据=响应;
this.gridOptions={};
this.gridOptions.columnDefs=[
{headerName:'Make',field:'Make'},
{headerName:'Model',字段:'Model'},
{headerName:'Price',字段:'Price'}
];
this.gridOptions.rowData=[
{品牌:'Toyota',型号:'Celica',价格:35000},
{品牌:福特,型号:蒙迪欧,价格:32000},
{品牌:'Porsche',型号:'Boxter',价格:72000}
];
},错误=>{
console.log(错误);
});
}
我试图通过从getFoo返回一个承诺来解决这个问题,然后在承诺的“then”中设置列和行数据,但得到了相同的加载框
export class FooComponent {
private columnDefs = [];
private rowData = [];
private gridOptions: GridOptions;
private data: any;
constructor(private http:HttpClient ) {
this.getFoo();
}
getFoo(){
this.http.get(`https://xxx`).subscribe(response => {
this.data = response;
this.gridOptions = <GridOptions>{};
this.gridOptions.columnDefs = [
{headerName: 'Make', field: 'make' },
{headerName: 'Model', field: 'model' },
{headerName: 'Price', field: 'price'}
];
this.gridOptions.rowData = [
{ make: 'Toyota', model: 'Celica', price: 35000 },
{ make: 'Ford', model: 'Mondeo', price: 32000 },
{ make: 'Porsche', model: 'Boxter', price: 72000 }
];
}, error => {
console.log(error);
});
}
这是我的标记
<ag-grid-angular
style="width: 700px; height: 500px;"
class="ag-theme-balham"
[gridOptions]="gridOptions"
>
</ag-grid-angular>
有什么想法吗?你可以这样做:
export class FooComponent {
private columnDefs = [];
private rowData = [];
private gridOptions$: Observable<GridOptions>;
constructor(private http:HttpClient ) {
}
ngOnInit() { this.getFoo(); } // call it here, not in constructor
getFoo(){
this.gridOptions$ = this.http.get(`https://xxx`);
}
<ag-grid-angular
style="width: 700px; height: 500px;"
class="ag-theme-balham"
[gridOptions]="gridOptions$ | async"
>
导出类组件{
私有columnDefs=[];
私有行数据=[];
私有网格选项$:可观察;
构造函数(专用http:HttpClient){
}
ngOnInit(){this.getFoo();}//在此处调用,而不是在构造函数中调用
getFoo(){
this.gridOptions$=this.http.get(`https://xxx`);
}
您可以通过在http请求上执行.map和执行您的业务逻辑来转换http请求,并且可以观察到该响应
之后,只需在html中这样调用:
export class FooComponent {
private columnDefs = [];
private rowData = [];
private gridOptions$: Observable<GridOptions>;
constructor(private http:HttpClient ) {
}
ngOnInit() { this.getFoo(); } // call it here, not in constructor
getFoo(){
this.gridOptions$ = this.http.get(`https://xxx`);
}
<ag-grid-angular
style="width: 700px; height: 500px;"
class="ag-theme-balham"
[gridOptions]="gridOptions$ | async"
>
这将异步更新模型并为您触发更改检测。api调用返回一个我认为无法转换为gridoptions的对象列表。事实上,我按照您所述编写了代码,但我收到了以下错误:“Object”类型可分配给极少数其他类型。您是否打算改用“any”类型?类型对象“”缺少类型“Observable”中的以下属性:\ isScalar、source、operator、lift和其他6个属性。然后,您可以在ag网格周围编写包装器组件,将数据传递给它,并且在输入中,您将没有可观察的:D