How to toggle disabled property from button if it's row has been selected by checkbox in a p-datatable












1















I am currently developing the user interface of a web application using angular6. I have a p-dataTable component (primeNG) with several rows, each row has as a first column a checkbox and as last one a disabled button by default.



The goal is opening a dialog if I select a row by clicking it's checkbox and then clicking it's dialog trigger button after unable that button (and just that one, not the rest of row buttons).



I thought I could get the row selected index and style the button via CSS with nth-child(index) but I read p-columns in a p-datatable doesn't create an index.



It looks like something trivial, but I'm not able to unable just the button of the selected row.



I'll appreciate your help.



That's a simplified markup example:



    <p-datatable [value]="data" scrollable="true" scrollHeight="350px [(selection)]="selectedItems" columnResizeMode="expand">
<p-header>
<div class="ui-helper-clearfix">Example Table</div>
</p-header>
<p-column class="checkbox" selectionMode="multiple"></p-column>
<p-column class="data-column" field="dataColumn1" header="Column1"></p-column>
<p-column class="data-column" field="dataColumn2"header="Column2"></p-column>
<p-column>
<ng-template>
<button type="button" class="btn" icon="fa fa-user" [disabled]="??????"></button>
</ng-template>
</p-column>
</p-datatable>


Thanks in advance and greetings!










share|improve this question

























  • You need to test if selectedItems includes the row. I've never used primeng, but the selection example of the datatable documentation shows that you can use let-rowData to access to the current row.

    – JB Nizet
    Nov 24 '18 at 9:25
















1















I am currently developing the user interface of a web application using angular6. I have a p-dataTable component (primeNG) with several rows, each row has as a first column a checkbox and as last one a disabled button by default.



The goal is opening a dialog if I select a row by clicking it's checkbox and then clicking it's dialog trigger button after unable that button (and just that one, not the rest of row buttons).



I thought I could get the row selected index and style the button via CSS with nth-child(index) but I read p-columns in a p-datatable doesn't create an index.



It looks like something trivial, but I'm not able to unable just the button of the selected row.



I'll appreciate your help.



That's a simplified markup example:



    <p-datatable [value]="data" scrollable="true" scrollHeight="350px [(selection)]="selectedItems" columnResizeMode="expand">
<p-header>
<div class="ui-helper-clearfix">Example Table</div>
</p-header>
<p-column class="checkbox" selectionMode="multiple"></p-column>
<p-column class="data-column" field="dataColumn1" header="Column1"></p-column>
<p-column class="data-column" field="dataColumn2"header="Column2"></p-column>
<p-column>
<ng-template>
<button type="button" class="btn" icon="fa fa-user" [disabled]="??????"></button>
</ng-template>
</p-column>
</p-datatable>


Thanks in advance and greetings!










share|improve this question

























  • You need to test if selectedItems includes the row. I've never used primeng, but the selection example of the datatable documentation shows that you can use let-rowData to access to the current row.

    – JB Nizet
    Nov 24 '18 at 9:25














1












1








1








I am currently developing the user interface of a web application using angular6. I have a p-dataTable component (primeNG) with several rows, each row has as a first column a checkbox and as last one a disabled button by default.



The goal is opening a dialog if I select a row by clicking it's checkbox and then clicking it's dialog trigger button after unable that button (and just that one, not the rest of row buttons).



I thought I could get the row selected index and style the button via CSS with nth-child(index) but I read p-columns in a p-datatable doesn't create an index.



It looks like something trivial, but I'm not able to unable just the button of the selected row.



I'll appreciate your help.



That's a simplified markup example:



    <p-datatable [value]="data" scrollable="true" scrollHeight="350px [(selection)]="selectedItems" columnResizeMode="expand">
<p-header>
<div class="ui-helper-clearfix">Example Table</div>
</p-header>
<p-column class="checkbox" selectionMode="multiple"></p-column>
<p-column class="data-column" field="dataColumn1" header="Column1"></p-column>
<p-column class="data-column" field="dataColumn2"header="Column2"></p-column>
<p-column>
<ng-template>
<button type="button" class="btn" icon="fa fa-user" [disabled]="??????"></button>
</ng-template>
</p-column>
</p-datatable>


Thanks in advance and greetings!










share|improve this question
















I am currently developing the user interface of a web application using angular6. I have a p-dataTable component (primeNG) with several rows, each row has as a first column a checkbox and as last one a disabled button by default.



The goal is opening a dialog if I select a row by clicking it's checkbox and then clicking it's dialog trigger button after unable that button (and just that one, not the rest of row buttons).



I thought I could get the row selected index and style the button via CSS with nth-child(index) but I read p-columns in a p-datatable doesn't create an index.



It looks like something trivial, but I'm not able to unable just the button of the selected row.



I'll appreciate your help.



That's a simplified markup example:



    <p-datatable [value]="data" scrollable="true" scrollHeight="350px [(selection)]="selectedItems" columnResizeMode="expand">
<p-header>
<div class="ui-helper-clearfix">Example Table</div>
</p-header>
<p-column class="checkbox" selectionMode="multiple"></p-column>
<p-column class="data-column" field="dataColumn1" header="Column1"></p-column>
<p-column class="data-column" field="dataColumn2"header="Column2"></p-column>
<p-column>
<ng-template>
<button type="button" class="btn" icon="fa fa-user" [disabled]="??????"></button>
</ng-template>
</p-column>
</p-datatable>


Thanks in advance and greetings!







angular primeng primeng-datatable






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share|improve this question








edited Nov 27 '18 at 8:58









Toni Michel Caubet

6,88345157304




6,88345157304










asked Nov 24 '18 at 9:15









rmi8092rmi8092

284




284













  • You need to test if selectedItems includes the row. I've never used primeng, but the selection example of the datatable documentation shows that you can use let-rowData to access to the current row.

    – JB Nizet
    Nov 24 '18 at 9:25



















  • You need to test if selectedItems includes the row. I've never used primeng, but the selection example of the datatable documentation shows that you can use let-rowData to access to the current row.

    – JB Nizet
    Nov 24 '18 at 9:25

















You need to test if selectedItems includes the row. I've never used primeng, but the selection example of the datatable documentation shows that you can use let-rowData to access to the current row.

– JB Nizet
Nov 24 '18 at 9:25





You need to test if selectedItems includes the row. I've never used primeng, but the selection example of the datatable documentation shows that you can use let-rowData to access to the current row.

– JB Nizet
Nov 24 '18 at 9:25












1 Answer
1






active

oldest

votes


















1














I've found a solution:



First of all I need a ng-template inside my checkbox p-column in order to have a rowIndex variable to be read in the class component through a function triggered in the event onChange of the checkbox.



There I save this value in a class variable called "indexSelected" that I'll be watching in the ng-template of the buttons p-column. I'll be comparing this rowIndex value with the "indexSelected" to keep disabled or not my buttons.



This is my code:



Template:



   <p-datatable [value]="data" scrollable="true" scrollHeight="350px [(selection)]="selectedItems" columnResizeMode="expand">
<p-header>
<div class="ui-helper-clearfix">Example Table</div>
</p-header>
<p-column selectionMode="multiple" [styleClass]="'colsmall'">
<ng-template let-riCheck="rowIndex" pTemplate="body">
<p-checkbox (onChange)="selectRow(riCheck); "></p-checkbox>
</ng-template>
</p-column>
<p-column class="data-column" field="dataColumn1" header="Column1"></p-column>
<p-column class="data-column" field="dataColumn2"header="Column2"></p-column>
<p-column header="Acciones" styleClass="colmedium" frozen="true">
<ng-template pTemplate="body" let-ri="rowIndex">
<button type="button" pButton icon="fa-user" (click)="goToEditContact();" [disabled]="indexSelected != ri"></button>
<button type="button" pButton icon="fa-ellipsis-h" class="ui-button-inverted" (click)="mostrarMasOpciones($event, op)" [disabled]="indexSelected != ri"></button>
</ng-template>
</p-column>
</p-datatable>


Class Component:



...

selectRow (index) {
this.indexSelected = index;
}

...





share|improve this answer























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    1 Answer
    1






    active

    oldest

    votes









    active

    oldest

    votes






    active

    oldest

    votes









    1














    I've found a solution:



    First of all I need a ng-template inside my checkbox p-column in order to have a rowIndex variable to be read in the class component through a function triggered in the event onChange of the checkbox.



    There I save this value in a class variable called "indexSelected" that I'll be watching in the ng-template of the buttons p-column. I'll be comparing this rowIndex value with the "indexSelected" to keep disabled or not my buttons.



    This is my code:



    Template:



       <p-datatable [value]="data" scrollable="true" scrollHeight="350px [(selection)]="selectedItems" columnResizeMode="expand">
    <p-header>
    <div class="ui-helper-clearfix">Example Table</div>
    </p-header>
    <p-column selectionMode="multiple" [styleClass]="'colsmall'">
    <ng-template let-riCheck="rowIndex" pTemplate="body">
    <p-checkbox (onChange)="selectRow(riCheck); "></p-checkbox>
    </ng-template>
    </p-column>
    <p-column class="data-column" field="dataColumn1" header="Column1"></p-column>
    <p-column class="data-column" field="dataColumn2"header="Column2"></p-column>
    <p-column header="Acciones" styleClass="colmedium" frozen="true">
    <ng-template pTemplate="body" let-ri="rowIndex">
    <button type="button" pButton icon="fa-user" (click)="goToEditContact();" [disabled]="indexSelected != ri"></button>
    <button type="button" pButton icon="fa-ellipsis-h" class="ui-button-inverted" (click)="mostrarMasOpciones($event, op)" [disabled]="indexSelected != ri"></button>
    </ng-template>
    </p-column>
    </p-datatable>


    Class Component:



    ...

    selectRow (index) {
    this.indexSelected = index;
    }

    ...





    share|improve this answer




























      1














      I've found a solution:



      First of all I need a ng-template inside my checkbox p-column in order to have a rowIndex variable to be read in the class component through a function triggered in the event onChange of the checkbox.



      There I save this value in a class variable called "indexSelected" that I'll be watching in the ng-template of the buttons p-column. I'll be comparing this rowIndex value with the "indexSelected" to keep disabled or not my buttons.



      This is my code:



      Template:



         <p-datatable [value]="data" scrollable="true" scrollHeight="350px [(selection)]="selectedItems" columnResizeMode="expand">
      <p-header>
      <div class="ui-helper-clearfix">Example Table</div>
      </p-header>
      <p-column selectionMode="multiple" [styleClass]="'colsmall'">
      <ng-template let-riCheck="rowIndex" pTemplate="body">
      <p-checkbox (onChange)="selectRow(riCheck); "></p-checkbox>
      </ng-template>
      </p-column>
      <p-column class="data-column" field="dataColumn1" header="Column1"></p-column>
      <p-column class="data-column" field="dataColumn2"header="Column2"></p-column>
      <p-column header="Acciones" styleClass="colmedium" frozen="true">
      <ng-template pTemplate="body" let-ri="rowIndex">
      <button type="button" pButton icon="fa-user" (click)="goToEditContact();" [disabled]="indexSelected != ri"></button>
      <button type="button" pButton icon="fa-ellipsis-h" class="ui-button-inverted" (click)="mostrarMasOpciones($event, op)" [disabled]="indexSelected != ri"></button>
      </ng-template>
      </p-column>
      </p-datatable>


      Class Component:



      ...

      selectRow (index) {
      this.indexSelected = index;
      }

      ...





      share|improve this answer


























        1












        1








        1







        I've found a solution:



        First of all I need a ng-template inside my checkbox p-column in order to have a rowIndex variable to be read in the class component through a function triggered in the event onChange of the checkbox.



        There I save this value in a class variable called "indexSelected" that I'll be watching in the ng-template of the buttons p-column. I'll be comparing this rowIndex value with the "indexSelected" to keep disabled or not my buttons.



        This is my code:



        Template:



           <p-datatable [value]="data" scrollable="true" scrollHeight="350px [(selection)]="selectedItems" columnResizeMode="expand">
        <p-header>
        <div class="ui-helper-clearfix">Example Table</div>
        </p-header>
        <p-column selectionMode="multiple" [styleClass]="'colsmall'">
        <ng-template let-riCheck="rowIndex" pTemplate="body">
        <p-checkbox (onChange)="selectRow(riCheck); "></p-checkbox>
        </ng-template>
        </p-column>
        <p-column class="data-column" field="dataColumn1" header="Column1"></p-column>
        <p-column class="data-column" field="dataColumn2"header="Column2"></p-column>
        <p-column header="Acciones" styleClass="colmedium" frozen="true">
        <ng-template pTemplate="body" let-ri="rowIndex">
        <button type="button" pButton icon="fa-user" (click)="goToEditContact();" [disabled]="indexSelected != ri"></button>
        <button type="button" pButton icon="fa-ellipsis-h" class="ui-button-inverted" (click)="mostrarMasOpciones($event, op)" [disabled]="indexSelected != ri"></button>
        </ng-template>
        </p-column>
        </p-datatable>


        Class Component:



        ...

        selectRow (index) {
        this.indexSelected = index;
        }

        ...





        share|improve this answer













        I've found a solution:



        First of all I need a ng-template inside my checkbox p-column in order to have a rowIndex variable to be read in the class component through a function triggered in the event onChange of the checkbox.



        There I save this value in a class variable called "indexSelected" that I'll be watching in the ng-template of the buttons p-column. I'll be comparing this rowIndex value with the "indexSelected" to keep disabled or not my buttons.



        This is my code:



        Template:



           <p-datatable [value]="data" scrollable="true" scrollHeight="350px [(selection)]="selectedItems" columnResizeMode="expand">
        <p-header>
        <div class="ui-helper-clearfix">Example Table</div>
        </p-header>
        <p-column selectionMode="multiple" [styleClass]="'colsmall'">
        <ng-template let-riCheck="rowIndex" pTemplate="body">
        <p-checkbox (onChange)="selectRow(riCheck); "></p-checkbox>
        </ng-template>
        </p-column>
        <p-column class="data-column" field="dataColumn1" header="Column1"></p-column>
        <p-column class="data-column" field="dataColumn2"header="Column2"></p-column>
        <p-column header="Acciones" styleClass="colmedium" frozen="true">
        <ng-template pTemplate="body" let-ri="rowIndex">
        <button type="button" pButton icon="fa-user" (click)="goToEditContact();" [disabled]="indexSelected != ri"></button>
        <button type="button" pButton icon="fa-ellipsis-h" class="ui-button-inverted" (click)="mostrarMasOpciones($event, op)" [disabled]="indexSelected != ri"></button>
        </ng-template>
        </p-column>
        </p-datatable>


        Class Component:



        ...

        selectRow (index) {
        this.indexSelected = index;
        }

        ...






        share|improve this answer












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        share|improve this answer










        answered Nov 27 '18 at 9:54









        rmi8092rmi8092

        284




        284






























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