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feat: Add column visibility control feature #2152

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feat: Add column visibility control feature #2152

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97 changes: 96 additions & 1 deletion src/app/columns/column-toggle.component.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -37,8 +37,74 @@ import { ColumnMode } from 'projects/swimlane/ngx-datatable/src/public-api';
</li>
</ul>
</div>
<div class="selected-column">
<h4>Dropdown</h4>
<form>
<div class="multiselect">
<div class="selectBox" (click)="showCheckboxes()">
<select>
<option>Show/Hide Column</option>
</select>
<div class="overSelect"></div>
</div>
<div id="checkboxes">
<label for="select/unselect">
<input
type="checkbox"
id="select/Unselect"
[checked]="allColumnsChecked"
(click)="allColumnsChecked ? uncheckAll() : checkAll()"
/>{{ allColumnsChecked ? 'Unselect All' : 'Select All' }}</label
>
<label *ngFor="let col of allColumns" [for]="col.name">
<input type="checkbox" [id]="col.name" [checked]="isChecked(col)" (click)="toggle(col)" />{{
col.name
}}</label
>
</div>
</div>
</form>
</div>
</div>
`
`,
styles: [
`
.multiselect {
width: 200px;
margin: 0 auto;
}

.selectBox {
position: relative;
}

.selectBox select {
width: 100%;
font-weight: bold;
}

.overSelect {
position: absolute;
left: 0;
right: 0;
top: 0;
bottom: 0;
}

#checkboxes {
display: none;
border: 1px #dadada solid;
}

#checkboxes label {
display: block;
}

#checkboxes label:hover {
background-color: #1e90ff;
}
`
]
})
export class ColumnToggleComponent {
rows = [
Expand All @@ -60,6 +126,9 @@ export class ColumnToggleComponent {

ColumnMode = ColumnMode;

allColumnsChecked: boolean = true;
expanded: boolean = false;

toggle(col) {
const isChecked = this.isChecked(col);

Expand All @@ -79,4 +148,30 @@ export class ColumnToggleComponent {
}) !== undefined
);
}

checkAll() {
this.columns = this.allColumns;
this.allColumnsChecked = true;
}

uncheckAll() {
if (this.columns.length == 0) {
this.columns = this.allColumns;
this.allColumnsChecked = true;
} else {
this.columns = [];
this.allColumnsChecked = false;
}
}

showCheckboxes() {
var checkboxes = document.getElementById('checkboxes');
if (!this.expanded) {
checkboxes.style.display = 'block';
this.expanded = true;
} else {
checkboxes.style.display = 'none';
this.expanded = false;
}
}
}