Display Mat-hint only on corresponding input focus

I have a mat-hint element added in my html.
I want to display mat-hint only when users focus is on corresponding form-field & hide the hint on focusout.
How to achieve this scenario for all form-fields.

<mat-hint align="end">Max 50 characters</mat-hint>

asked Nov 13 '18 at 11:05

Mayur Patil

287

add a comment |

<mat-hint align="end">Max 50 characters</mat-hint>

asked Nov 13 '18 at 11:05

Mayur Patil

287

add a comment |

<mat-hint align="end">Max 50 characters</mat-hint>

asked Nov 13 '18 at 11:05

Mayur Patil

287

<mat-hint align="end">Max 50 characters</mat-hint>

angular angular-material

asked Nov 13 '18 at 11:05

Mayur Patil

287

asked Nov 13 '18 at 11:05

Mayur Patil

287

asked Nov 13 '18 at 11:05

Mayur Patil

287

asked Nov 13 '18 at 11:05

Mayur Patil

287

asked Nov 13 '18 at 11:05

Mayur Patil

287

add a comment |

1 Answer
1

active

oldest

votes

You can use (focus) and (focusout) with reference called focusState

<input name="date" type="text" (focus)="focusState='true'" (focusout)="focusState='false'">

<mat-hint align="end" *ngIf="focusState == 'true'">Max 50 characters</mat-hint>

Edit

To handle the multiple items

<div *ngFor="let item of array">

   <input #item name="date" type="text" (focus)="item.alt='true'" (focusout)="item.alt='false'">

   <mat-hint align="end" *ngIf="item.alt == 'true'">Max 50 characters</mat-hint>

</div>

edited Nov 14 '18 at 11:46

answered Nov 13 '18 at 11:25

Sunil Singh

6,2022626

I loved the solution. I have used this stuff for other use cases. The problem i am facing is little different. I am having a formArray which is bulk saved. If I set this declare this variable all the inputs will be affected.If i modify object my ngrx store will be impacted. hence confused what would be idle solution to such problems

– Mayur Patil
Nov 14 '18 at 11:12

It looks like you want to handle the multiple items of formArray. You might be using *ngFor for iteration. For such kind of scenario, you can create a separate variable which for each items and performs the same operation independently. Update the answer and here the link which will help to implement this. stackblitz.com/edit/angular-ckqmvs

– Sunil Singh
Nov 14 '18 at 11:40

Yes, this is the solution i am using, by adding property in each object. i was looking for solution without modifying my actual object. but thats ok, i will stick with object alteration for now. Thanks for your help

– Mayur Patil
Nov 15 '18 at 5:31

add a comment |

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1 Answer
1

active

oldest

votes

1 Answer
1

active

oldest

votes

You can use (focus) and (focusout) with reference called focusState

<input name="date" type="text" (focus)="focusState='true'" (focusout)="focusState='false'">

<mat-hint align="end" *ngIf="focusState == 'true'">Max 50 characters</mat-hint>

Edit

To handle the multiple items

<div *ngFor="let item of array">

   <input #item name="date" type="text" (focus)="item.alt='true'" (focusout)="item.alt='false'">

   <mat-hint align="end" *ngIf="item.alt == 'true'">Max 50 characters</mat-hint>

</div>

edited Nov 14 '18 at 11:46

answered Nov 13 '18 at 11:25

Sunil Singh

6,2022626

I loved the solution. I have used this stuff for other use cases. The problem i am facing is little different. I am having a formArray which is bulk saved. If I set this declare this variable all the inputs will be affected.If i modify object my ngrx store will be impacted. hence confused what would be idle solution to such problems

– Mayur Patil
Nov 14 '18 at 11:12

It looks like you want to handle the multiple items of formArray. You might be using *ngFor for iteration. For such kind of scenario, you can create a separate variable which for each items and performs the same operation independently. Update the answer and here the link which will help to implement this. stackblitz.com/edit/angular-ckqmvs

– Sunil Singh
Nov 14 '18 at 11:40

Yes, this is the solution i am using, by adding property in each object. i was looking for solution without modifying my actual object. but thats ok, i will stick with object alteration for now. Thanks for your help

– Mayur Patil
Nov 15 '18 at 5:31

add a comment |

You can use (focus) and (focusout) with reference called focusState

<input name="date" type="text" (focus)="focusState='true'" (focusout)="focusState='false'">

<mat-hint align="end" *ngIf="focusState == 'true'">Max 50 characters</mat-hint>

Edit

To handle the multiple items

<div *ngFor="let item of array">

   <input #item name="date" type="text" (focus)="item.alt='true'" (focusout)="item.alt='false'">

   <mat-hint align="end" *ngIf="item.alt == 'true'">Max 50 characters</mat-hint>

</div>

edited Nov 14 '18 at 11:46

answered Nov 13 '18 at 11:25

Sunil Singh

6,2022626

I loved the solution. I have used this stuff for other use cases. The problem i am facing is little different. I am having a formArray which is bulk saved. If I set this declare this variable all the inputs will be affected.If i modify object my ngrx store will be impacted. hence confused what would be idle solution to such problems

– Mayur Patil
Nov 14 '18 at 11:12

It looks like you want to handle the multiple items of formArray. You might be using *ngFor for iteration. For such kind of scenario, you can create a separate variable which for each items and performs the same operation independently. Update the answer and here the link which will help to implement this. stackblitz.com/edit/angular-ckqmvs

– Sunil Singh
Nov 14 '18 at 11:40

Yes, this is the solution i am using, by adding property in each object. i was looking for solution without modifying my actual object. but thats ok, i will stick with object alteration for now. Thanks for your help

– Mayur Patil
Nov 15 '18 at 5:31

add a comment |

You can use (focus) and (focusout) with reference called focusState

<input name="date" type="text" (focus)="focusState='true'" (focusout)="focusState='false'">

<mat-hint align="end" *ngIf="focusState == 'true'">Max 50 characters</mat-hint>

Edit

To handle the multiple items

<div *ngFor="let item of array">

   <input #item name="date" type="text" (focus)="item.alt='true'" (focusout)="item.alt='false'">

   <mat-hint align="end" *ngIf="item.alt == 'true'">Max 50 characters</mat-hint>

</div>

edited Nov 14 '18 at 11:46

answered Nov 13 '18 at 11:25

Sunil Singh

6,2022626

You can use (focus) and (focusout) with reference called focusState

<input name="date" type="text" (focus)="focusState='true'" (focusout)="focusState='false'">

<mat-hint align="end" *ngIf="focusState == 'true'">Max 50 characters</mat-hint>

Edit

To handle the multiple items

<div *ngFor="let item of array">

   <input #item name="date" type="text" (focus)="item.alt='true'" (focusout)="item.alt='false'">

   <mat-hint align="end" *ngIf="item.alt == 'true'">Max 50 characters</mat-hint>

</div>

edited Nov 14 '18 at 11:46

answered Nov 13 '18 at 11:25

Sunil Singh

6,2022626

edited Nov 14 '18 at 11:46

answered Nov 13 '18 at 11:25

Sunil Singh

6,2022626

answered Nov 13 '18 at 11:25

Sunil Singh

6,2022626

answered Nov 13 '18 at 11:25

Sunil Singh

6,2022626

I loved the solution. I have used this stuff for other use cases. The problem i am facing is little different. I am having a formArray which is bulk saved. If I set this declare this variable all the inputs will be affected.If i modify object my ngrx store will be impacted. hence confused what would be idle solution to such problems

– Mayur Patil
Nov 14 '18 at 11:12

It looks like you want to handle the multiple items of formArray. You might be using *ngFor for iteration. For such kind of scenario, you can create a separate variable which for each items and performs the same operation independently. Update the answer and here the link which will help to implement this. stackblitz.com/edit/angular-ckqmvs

– Sunil Singh
Nov 14 '18 at 11:40

Yes, this is the solution i am using, by adding property in each object. i was looking for solution without modifying my actual object. but thats ok, i will stick with object alteration for now. Thanks for your help

– Mayur Patil
Nov 15 '18 at 5:31

add a comment |

I loved the solution. I have used this stuff for other use cases. The problem i am facing is little different. I am having a formArray which is bulk saved. If I set this declare this variable all the inputs will be affected.If i modify object my ngrx store will be impacted. hence confused what would be idle solution to such problems

– Mayur Patil
Nov 14 '18 at 11:12

It looks like you want to handle the multiple items of formArray. You might be using *ngFor for iteration. For such kind of scenario, you can create a separate variable which for each items and performs the same operation independently. Update the answer and here the link which will help to implement this. stackblitz.com/edit/angular-ckqmvs

– Sunil Singh
Nov 14 '18 at 11:40

Yes, this is the solution i am using, by adding property in each object. i was looking for solution without modifying my actual object. but thats ok, i will stick with object alteration for now. Thanks for your help

– Mayur Patil
Nov 15 '18 at 5:31

I loved the solution. I have used this stuff for other use cases. The problem i am facing is little different. I am having a formArray which is bulk saved. If I set this declare this variable all the inputs will be affected.If i modify object my ngrx store will be impacted. hence confused what would be idle solution to such problems

– Mayur Patil
Nov 14 '18 at 11:12

It looks like you want to handle the multiple items of formArray. You might be using *ngFor for iteration. For such kind of scenario, you can create a separate variable which for each items and performs the same operation independently. Update the answer and here the link which will help to implement this. stackblitz.com/edit/angular-ckqmvs

– Sunil Singh
Nov 14 '18 at 11:40

Yes, this is the solution i am using, by adding property in each object. i was looking for solution without modifying my actual object. but thats ok, i will stick with object alteration for now. Thanks for your help

– Mayur Patil
Nov 15 '18 at 5:31

add a comment |

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