我有一个表单,我有一个名为systemParameters的字段,我想指定许多值,按Enter键保存在数组中。
问题是在按下输入表格时同时提交。
在这种情况下哪种方式最好提交表单?
我最初的想法是禁用提交按钮,直到所有字段都已满,但是当我填写所有字段时,因为我向systemParameters字段添加了几个值,这将导致表单在某个时刻提交。
这是我迄今所做的一切。
https://plnkr.co/edit/dHJf8QEhhvU5LupdDcmX?p=info
import {Component} from "angular2/core";
import {FORM_DIRECTIVES, FormBuilder, ControlGroup, AbstractControl, Validators, Control} from "angular2/common";
@Component({
selector: 'parameters-form',
directives: [FORM_DIRECTIVES],
template: `
<h1>Parameters Form</h1>
<p>{{ arr }}</p>
<form [ngFormModel]="myForm" (ngSubmit)="onSubmit(myForm.value)" class="ui form">
...
<div class="field">
<label for="systemParameters">System Parameters</label>
<input type="number"
id="systemParameters"
placeholder="systemParameters Param"
[ngFormControl]="systemParameters"
(keypress)="addToArray($event, systemParameters.value)">
<button type="button" (click)="addToArray(systemParameters.value)">Add</button>
</div>
...
<button type="submit" class="ui button">Submit</button>
</form>
`
})
export class ParametersForm {
myForm: ControlGroup;
systemParameters: AbstractControl;
arr: number[];
constructor(fb: FormBuilder) {
this.myForm = fb.group({
"realisations" : [""],
"numConstSteps" : [""],
"timeHorizon": [""],
"continuationStep" : [""],
"continuationStepSign" : [""],
"numberOfModelParameters" : [""],
"systemParameters" : [],
"param" : [""],
"netLogoFile" : [""],
"numberOfModelVariables" : [""],
"restrictOperator" : [""],
"liftOperator" : [""],
"xInitial" : [""]
});
this.arr = [];
this.systemParameters = this.myForm.controls["systemParameters"];
}
addToArray(event,value: any): void {
if (event.charCode == 13){
this.arr.push(value);
this.arr = this.arr.slice();
(<Control>this.systemParameters).updateValue("");
}
}
onSubmit(form: any): void {
console.log(this.arr);
form.systemParameters = this.arr;
console.log("your submitted value:", form)
}
}
答案 0 :(得分:0)
我不确定这是一个聪明的解决方案,但似乎有效
<form #f=ngForm [ngFormModel]="myForm" (keydown.enter)="false" (ngSubmit)="onSubmit(myForm.value)" class="ui form">
...
<button type="button" (click)="f.ngSubmit.emit(null)" class="ui button">Submit</button>
另请参阅https://plnkr.co/edit/sekWZHOXlyQOSMoRuAUz?p=preview(从模板中删除一点)