//用于mat-select的html代码,其中status1具有2个值:active和inactive
<div style="width: 100%;">
<div fxLayout="row" fxLayoutAlign="end center" style="padding: 15px 15px
0px 15px;">
<mat-form-field>
<mat-select placeholder="Select Status"
(selectionChange)="onselect($event)">
<mat-option *ngFor="let item of status1" [value]="item.display">
{{item.display}}</mat-option>
</mat-select>
</mat-form-field>
</div>
</div>
// ts code
status1: Status[] = [
{ value: '0', display: 'Active' },
{ value: '1', display: 'Inactive' }
];
onselect(item: any) {
this.accounts = this.jsonCustomerList.Accounts;
this.dataSource.filter = item.trim().toLowerCase();
}
// object
[
{"AccountName": "range1",
"State": "",
"Zip": "",
"Country": "",
"IsDeleted": false},
{"AccountName": "local1",
"State": "",
"Zip": "",
"Country": "",
"IsDeleted": true}
]
如果我选择active,则mat-table应该只显示IsDeleted:true的那些记录。反之亦然,即不活动,即IsDeleted的记录:false。
期望ts代码。
答案 0 :(得分:1)
您需要重写filterPredicate
,并像往常一样使用它,filterPredicate
需要在过滤器通过时返回true,在过滤器不通过时返回false
ngOnInit(){
/* configure filter */
this.dataSource.filterPredicate =
(data: any, filter: string) => {
if ('active'.includes(filter.toLowerCase())) {
return data.IsDeleted;
} else if ('inactive'.includes(filter.toLowerCase())) {
return !data.IsDeleted;
} else {
if(data.AccountName.includes(filter.toLowerCase())){
return true;
}else{
return false;
}
}
}
现在您可以轻松过滤数据源:
onselect(item: any) {
this.accounts = this.jsonCustomerList.Accounts;
this.dataSource.filter = item.source.value.trim().toLowerCase(); //<--- Note this line
}
有效的演示链接here