blocks|key|3392544|text|stepper和forms组件在不同的form对象上工作。您需要在step组件的ngOnInit()中设置超级的forms对象|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|3392545|ngOnInit()+{
++++super.frmStepTwo+=+this.formBuilder.group({
++++++++address:+['',+Validators.required]
++++});
}|code-block|syntax|javascript|3392546|相反，|3392547|ngOnInit()+{
++++this.frmStepTwo+=+this.formBuilder.group({
++++++++address:+['',+Validators.required]
++++});
}|3392548|entityMap^0|14|A|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@$9|R|A|S|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|T|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|U|8|@]|D|@]|E|$]]|$1|M|3|N|5|H|7|V|8|@]|D|@]|E|$I|J]]|$1|O|3|-4|5|6|7|W|8|@]|D|@]|E|$]]]|P|$]]

Your stepper and forms components works on different form objects. You need to set super's forms objects in step component's <code>ngOnInit()</code>

<pre><code>ngOnInit() {
 super.frmStepTwo = this.formBuilder.group({
 address: ['', Validators.required]
 });
}
</code></pre>

instead 

<pre><code>ngOnInit() {
 this.frmStepTwo = this.formBuilder.group({
 address: ['', Validators.required]
 });
}
</code></pre>

blocks|key|3392568|text|问题出在您的CreateProfileComponent中|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|3392569|@Component({
++++selector:+'create-profile-component',
++++templateUrl:+'./create-profile.component.html'
})
export+class+CreateProfileComponent+{

++++frmStepOne:+FormGroup;
++++frmStepTwo:+FormGroup;
++++frmStepThree:+FormGroup;

++++constructor(private+fb:+FormBuilder)+{+}

}|code-block|syntax|javascript|3392570|您在CreateProfileComponent中定义的FormGroups和您的stepper组件之间没有关系。您曾尝试使用CreateProfileComponent扩展每个StepComponent，但是使用这种方法时，每个StepComponent都有自己的CreateProfileComponent实例，因此都有自己的FormGroup声明。|3392571|要解决您的问题，您可以为html中的每个StepComponent声明模板变量(从#开始)，并将formControl传递给[stepControl]|3392572|<mat-horizontal-stepper+linear+#stepper>
++++<mat-step+[stepControl]="step1.frmStepOne">
++++++++<ng-template+matStepLabel>Step+One+Details</ng-template>
++++++++<step-one-component+#step1></step-one-component>
++++</mat-step>
++++<mat-step+[stepControl]="step2.frmStepTwo">
++++++++<ng-template+matStepLabel>Step+Two+Details</ng-template>
++++++++<step-two-component+#step2></step-two-component>
++++</mat-step>
++++<mat-step+[stepControl]="step3.frmStepThree">
++++++++<ng-template+matStepLabel>Step+Three+Details</ng-template>
++++++++<step-three-component+#step3></step-three-component>
++++</mat-step>
</mat-horizontal-stepper>|3392573|或者让html保持原样，使用ViewChild()+(我更喜欢的方法)：|3392574|@Component({
++++selector:+'create-profile-component',
++++templateUrl:+'./create-profile.component.html'
})

export+class+CreateProfileComponent+{

++++@ViewChild(StepOneComponent)+stepOneComponent:+StepOneComponent;
++++@ViewChild(StepTwoComponent)+stepTwoComponent:+StepTwoComponent;
++++@ViewChild(StepTwoComponent)+stepThreeComponent:+StepThreeComponent;

++++get+frmStepOne()+{
+++++++return+this.stepOneComponent+?+this.stepOneComponent.frmStepOne+:+null;
++++}

++++get+frmStepTwo()+{
+++++++return+this.stepTwoComponent+?+this.stepTwoComponent.frmStepTwo+:+null;
++++}

++++get+frmStepThree()+{
+++++++return+this.stepThreeComponent+?+this.stepThreeComponent.frmStepThree+:+null;
++++}

}|3392575|无论哪种方式，都不需要使用CreateProfileComponent扩展您的StepComponents，这没有任何意义。|3392576|@Component({
++++selector:+'step-x-component',
++++templateUrl:+'./step-x.component.html',
})
export+class+StepXComponent+{

++++public+frmStepX:+FormGroup;

++++constructor(private+formBuilder:+FormBuilder)+{
++++}

++++ngOnInit()+{
++++++++this.frmStepX+=+this.formBuilder.group({
++++++++++++name:+['',+Validators.required]
++++++++});

++++}

}|3392577|entityMap^0|6|M|0|0|2|M|1R|M|2H|D|37|D|3P|M|4L|9|0|K|D|15|1|1Q|D|0|0|E|B|0|0|D|M|13|E|0|0^^$0|@$1|2|3|4|5|6|7|10|8|@$9|11|A|12|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|13|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|14|8|@$9|15|A|16|B|C]|$9|17|A|18|B|C]|$9|19|A|1A|B|C]|$9|1B|A|1C|B|C]|$9|1D|A|1E|B|C]|$9|1F|A|1G|B|C]]|D|@]|E|$]]|$1|M|3|N|5|6|7|1H|8|@$9|1I|A|1J|B|C]|$9|1K|A|1L|B|C]|$9|1M|A|1N|B|C]]|D|@]|E|$]]|$1|O|3|P|5|H|7|1O|8|@]|D|@]|E|$I|J]]|$1|Q|3|R|5|6|7|1P|8|@$9|1Q|A|1R|B|C]]|D|@]|E|$]]|$1|S|3|T|5|H|7|1S|8|@]|D|@]|E|$I|J]]|$1|U|3|V|5|6|7|1T|8|@$9|1U|A|1V|B|C]|$9|1W|A|1X|B|C]]|D|@]|E|$]]|$1|W|3|X|5|H|7|1Y|8|@]|D|@]|E|$I|J]]|$1|Y|3|-4|5|6|7|1Z|8|@]|D|@]|E|$]]]|Z|$]]

The problem is in your <code>CreateProfileComponent</code>:

<pre><code>@Component({
 selector: 'create-profile-component',
 templateUrl: './create-profile.component.html'
})
export class CreateProfileComponent {

 frmStepOne: FormGroup;
 frmStepTwo: FormGroup;
 frmStepThree: FormGroup;

 constructor(private fb: FormBuilder) { }

}
</code></pre>

There is no relation between your defined FormGroups in <code>CreateProfileComponent</code> and your stepper components. You tried to extend every <code>StepComponent</code> with <code>CreateProfileComponent</code>, but with this approach every <code>StepComponent</code> has its own instance of <code>CreateProfileComponent</code> and so their own <code>FormGroup</code> declaration.

To solve your problem you can declare template variables for every <code>StepComponent</code> in your html (starting with <code>#</code>) and pass the formControl to <code>[stepControl]</code>:

<pre><code>&lt;mat-horizontal-stepper linear #stepper&gt;
 &lt;mat-step [stepControl]="step1.frmStepOne"&gt;
 &lt;ng-template matStepLabel&gt;Step One Details&lt;/ng-template&gt;
 &lt;step-one-component #step1&gt;&lt;/step-one-component&gt;
 &lt;/mat-step&gt;
 &lt;mat-step [stepControl]="step2.frmStepTwo"&gt;
 &lt;ng-template matStepLabel&gt;Step Two Details&lt;/ng-template&gt;
 &lt;step-two-component #step2&gt;&lt;/step-two-component&gt;
 &lt;/mat-step&gt;
 &lt;mat-step [stepControl]="step3.frmStepThree"&gt;
 &lt;ng-template matStepLabel&gt;Step Three Details&lt;/ng-template&gt;
 &lt;step-three-component #step3&gt;&lt;/step-three-component&gt;
 &lt;/mat-step&gt;
&lt;/mat-horizontal-stepper&gt;
</code></pre>

Or you leave your html as it is and work with <code>ViewChild()</code> (my preferred approach):

<pre><code>@Component({
 selector: 'create-profile-component',
 templateUrl: './create-profile.component.html'
})

export class CreateProfileComponent {

 @ViewChild(StepOneComponent) stepOneComponent: StepOneComponent;
 @ViewChild(StepTwoComponent) stepTwoComponent: StepTwoComponent;
 @ViewChild(StepTwoComponent) stepThreeComponent: StepThreeComponent;

 get frmStepOne() {
 return this.stepOneComponent ? this.stepOneComponent.frmStepOne : null;
 }

 get frmStepTwo() {
 return this.stepTwoComponent ? this.stepTwoComponent.frmStepTwo : null;
 }

 get frmStepThree() {
 return this.stepThreeComponent ? this.stepThreeComponent.frmStepThree : null;
 }

}
</code></pre>

Either way there is no need to extend your <code>StepComponents</code> with <code>CreateProfileComponent</code> and it doesn't make any sense.

<pre><code>@Component({
 selector: 'step-x-component',
 templateUrl: './step-x.component.html',
})
export class StepXComponent {

 public frmStepX: FormGroup;

 constructor(private formBuilder: FormBuilder) {
 }

 ngOnInit() {
 this.frmStepX = this.formBuilder.group({
 name: ['', Validators.required]
 });

 }

}
</code></pre>

blocks|key|2299646|text|要使每个步骤都作为其自己的组件的mat-stepper，请创建按钮以遍历组件外部的stepper，并基于在单个组件内完成的表单验证显示/隐藏遍历按钮，并将表单信息公开给父stepper。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2299647|例如：|2299648|<mat-horizontal-stepper++#stepper+linear++iseditable>
<mat-step+
+[stepControl]="firstFormGroup"+
+[completed]="primaryIsTrue"
+>
++<app-primary-settings++
++(formIsValid)="formValidity($event)"></app-primary-settings>

++<button+mat-button+matStepperNext+
+++*ngIf="primaryIsTrue">
++++Next
+++</button>
</mat-step>

</mat-horizontal-stepper>|code-block|syntax|javascript|2299649|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|L|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|M|8|@]|9|@]|A|$G|H]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

To have a mat-stepper with each step as its own component, create the buttons to traverse through the stepper outside the component and show/hide the traversal buttons based on form validation done inside the individual component and expose the form info to the parent stepper.
 
For Example:
<pre><code>&lt;mat-horizontal-stepper #stepper linear iseditable&gt;
&lt;mat-step 
 [stepControl]=&quot;firstFormGroup&quot; 
 [completed]=&quot;primaryIsTrue&quot;
 &gt;
 &lt;app-primary-settings 
 (formIsValid)=&quot;formValidity($event)&quot;&gt;&lt;/app-primary-settings&gt;

 &lt;button mat-button matStepperNext 
 *ngIf=&quot;primaryIsTrue&quot;&gt;
 Next
 &lt;/button&gt;
&lt;/mat-step&gt;

&lt;/mat-horizontal-stepper&gt;
</code></pre>

I have a <code>angular material linear stepper</code> each step is a separate <code>angular component</code> containing a <code>form</code> which needs <code>validation</code>

The validation simply just isn't working. I can progress through to the next step without completing the form. 

To illustrate what I mean I have created a condensed version on stackblitz. 

The main things to look at (I think) is the <code>create-profile.component.html</code>

<pre><code>&lt;mat-horizontal-stepper linear #stepper&gt;
 &lt;mat-step [stepControl]="frmStepOne"&gt;
 &lt;ng-template matStepLabel&gt;Step One Details&lt;/ng-template&gt;
 &lt;step-one-component&gt;&lt;/step-one-component&gt;
 &lt;/mat-step&gt;
 &lt;mat-step [stepControl]="frmStepTwo"&gt;
 &lt;ng-template matStepLabel&gt;Step Two Details&lt;/ng-template&gt;
 &lt;step-two-component&gt;&lt;/step-two-component&gt;
 &lt;/mat-step&gt;
 &lt;mat-step [stepControl]="frmStepThree"&gt;
 &lt;ng-template matStepLabel&gt;Step Three Details&lt;/ng-template&gt;
 &lt;step-three-component&gt;&lt;/step-three-component&gt;
 &lt;/mat-step&gt;
&lt;/mat-horizontal-stepper&gt;
</code></pre>

And each <code>step-X-component</code> 

Here is the stackblitz. 
<a href="https://stackblitz.com/edit/angular-vpoj5j" rel="noreferrer">https://stackblitz.com/edit/angular-vpoj5j</a>

Angular Material Stepper Component For Each Step

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我有一个angular material linear stepper，每个步骤都是一个单独的angular component，其中包含一个需要validation的form验证根本就不起作用。我可以在不填写表单的情况下继续下一步。为了说明我的意思，我在stackblitz上创建了一个压缩版本。(我认为)要查看的主要...

问每一步的角度材质步进器组件
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