How to set the initial index (position) for the CdkVirtualScrollViewport in Angular 7
3
I need the inital position of the cdk-virtual-scroll-viewport to be other than the first element / item of the list.
Now I found the scrollToIndex and scrollTo methods, but I only can get them to work when using it in the ngAfterViewChecked, which feels off.
- Can someone confirm that the using those methods in the
ngAfterViewCheckedis the right way of doing things? - If not, show an alternative method / technique?
@ViewChild(CdkVirtualScrollViewport) cdkVirtualScrollViewport: CdkVirtualScrollViewport;
numbers: number = ;
constructor()
for (let index = 0; index < 10000; index++)
this.numbers.push(index);
ngAfterViewChecked()
this.cdkVirtualScrollViewport.scrollToIndex(2000);
<ul class="list">
<cdk-virtual-scroll-viewport style="height:264px" itemSize="88">
<ng-container *cdkVirtualFor="let n of numbers">
<li style="height:88px"> n </li>
</ng-container>
</cdk-virtual-scroll-viewport>
</ul>angular lifecycle angular7 angular-cdk virtualscroll
edited Dec 3 '18 at 16:13
Goncalo Peres
1,3261318
asked Nov 12 '18 at 19:52
Dalie
251111
add a comment |
3
I need the inital position of the cdk-virtual-scroll-viewport to be other than the first element / item of the list.
Now I found the scrollToIndex and scrollTo methods, but I only can get them to work when using it in the ngAfterViewChecked, which feels off.
- Can someone confirm that the using those methods in the
ngAfterViewCheckedis the right way of doing things? - If not, show an alternative method / technique?
@ViewChild(CdkVirtualScrollViewport) cdkVirtualScrollViewport: CdkVirtualScrollViewport;
numbers: number = ;
constructor()
for (let index = 0; index < 10000; index++)
this.numbers.push(index);
ngAfterViewChecked()
this.cdkVirtualScrollViewport.scrollToIndex(2000);
<ul class="list">
<cdk-virtual-scroll-viewport style="height:264px" itemSize="88">
<ng-container *cdkVirtualFor="let n of numbers">
<li style="height:88px"> n </li>
</ng-container>
</cdk-virtual-scroll-viewport>
</ul>angular lifecycle angular7 angular-cdk virtualscroll
edited Dec 3 '18 at 16:13
Goncalo Peres
1,3261318
asked Nov 12 '18 at 19:52
Dalie
251111
add a comment |
3
3
3
I need the inital position of the cdk-virtual-scroll-viewport to be other than the first element / item of the list.
Now I found the scrollToIndex and scrollTo methods, but I only can get them to work when using it in the ngAfterViewChecked, which feels off.
- Can someone confirm that the using those methods in the
ngAfterViewCheckedis the right way of doing things? - If not, show an alternative method / technique?
@ViewChild(CdkVirtualScrollViewport) cdkVirtualScrollViewport: CdkVirtualScrollViewport;
numbers: number = ;
constructor()
for (let index = 0; index < 10000; index++)
this.numbers.push(index);
ngAfterViewChecked()
this.cdkVirtualScrollViewport.scrollToIndex(2000);
<ul class="list">
<cdk-virtual-scroll-viewport style="height:264px" itemSize="88">
<ng-container *cdkVirtualFor="let n of numbers">
<li style="height:88px"> n </li>
</ng-container>
</cdk-virtual-scroll-viewport>
</ul>angular lifecycle angular7 angular-cdk virtualscroll
edited Dec 3 '18 at 16:13
Goncalo Peres
1,3261318
asked Nov 12 '18 at 19:52
Dalie
251111
I need the inital position of the cdk-virtual-scroll-viewport to be other than the first element / item of the list.
Now I found the scrollToIndex and scrollTo methods, but I only can get them to work when using it in the ngAfterViewChecked, which feels off.
- Can someone confirm that the using those methods in the
ngAfterViewCheckedis the right way of doing things? - If not, show an alternative method / technique?
@ViewChild(CdkVirtualScrollViewport) cdkVirtualScrollViewport: CdkVirtualScrollViewport;
numbers: number = ;
constructor()
for (let index = 0; index < 10000; index++)
this.numbers.push(index);
ngAfterViewChecked()
this.cdkVirtualScrollViewport.scrollToIndex(2000);
<ul class="list">
<cdk-virtual-scroll-viewport style="height:264px" itemSize="88">
<ng-container *cdkVirtualFor="let n of numbers">
<li style="height:88px"> n </li>
</ng-container>
</cdk-virtual-scroll-viewport>
</ul> @ViewChild(CdkVirtualScrollViewport) cdkVirtualScrollViewport: CdkVirtualScrollViewport;
numbers: number = ;
constructor()
for (let index = 0; index < 10000; index++)
this.numbers.push(index);
ngAfterViewChecked()
this.cdkVirtualScrollViewport.scrollToIndex(2000);
<ul class="list">
<cdk-virtual-scroll-viewport style="height:264px" itemSize="88">
<ng-container *cdkVirtualFor="let n of numbers">
<li style="height:88px"> n </li>
</ng-container>
</cdk-virtual-scroll-viewport>
</ul> @ViewChild(CdkVirtualScrollViewport) cdkVirtualScrollViewport: CdkVirtualScrollViewport;
numbers: number = ;
constructor()
for (let index = 0; index < 10000; index++)
this.numbers.push(index);
ngAfterViewChecked()
this.cdkVirtualScrollViewport.scrollToIndex(2000);
<ul class="list">
<cdk-virtual-scroll-viewport style="height:264px" itemSize="88">
<ng-container *cdkVirtualFor="let n of numbers">
<li style="height:88px"> n </li>
</ng-container>
</cdk-virtual-scroll-viewport>
</ul>angular lifecycle angular7 angular-cdk virtualscroll
angular lifecycle angular7 angular-cdk virtualscroll
edited Dec 3 '18 at 16:13
Goncalo Peres
1,3261318
asked Nov 12 '18 at 19:52
Dalie
251111
edited Dec 3 '18 at 16:13
Goncalo Peres
1,3261318
asked Nov 12 '18 at 19:52
Dalie
251111
edited Dec 3 '18 at 16:13
Goncalo Peres
1,3261318
edited Dec 3 '18 at 16:13
Goncalo Peres
1,3261318
edited Dec 3 '18 at 16:13
Goncalo Peres
1,3261318
1,3261318
asked Nov 12 '18 at 19:52
Dalie
251111
asked Nov 12 '18 at 19:52
Dalie
251111
asked Nov 12 '18 at 19:52
Dalie
251111
251111
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
0
I have the same problem, I have a not so elegant solution
contentCheck = 0
ngAfterViewChecked()
if (this.contentCheck < 3)
this. cdkVirtualScrollViewport.scrollToIndex(4000);
this.contentCheck++;
After 3 checks the scrollToIndex works.
answered Dec 12 '18 at 3:18
Pablo Cid
212
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
0
I have the same problem, I have a not so elegant solution
contentCheck = 0
ngAfterViewChecked()
if (this.contentCheck < 3)
this. cdkVirtualScrollViewport.scrollToIndex(4000);
this.contentCheck++;
After 3 checks the scrollToIndex works.
answered Dec 12 '18 at 3:18
Pablo Cid
212
add a comment |
0
I have the same problem, I have a not so elegant solution
contentCheck = 0
ngAfterViewChecked()
if (this.contentCheck < 3)
this. cdkVirtualScrollViewport.scrollToIndex(4000);
this.contentCheck++;
After 3 checks the scrollToIndex works.
answered Dec 12 '18 at 3:18
Pablo Cid
212
add a comment |
0
0
0
I have the same problem, I have a not so elegant solution
contentCheck = 0
ngAfterViewChecked()
if (this.contentCheck < 3)
this. cdkVirtualScrollViewport.scrollToIndex(4000);
this.contentCheck++;
After 3 checks the scrollToIndex works.
answered Dec 12 '18 at 3:18
Pablo Cid
212
I have the same problem, I have a not so elegant solution
contentCheck = 0
ngAfterViewChecked()
if (this.contentCheck < 3)
this. cdkVirtualScrollViewport.scrollToIndex(4000);
this.contentCheck++;
After 3 checks the scrollToIndex works.
answered Dec 12 '18 at 3:18
Pablo Cid
212
answered Dec 12 '18 at 3:18
Pablo Cid
212
answered Dec 12 '18 at 3:18
Pablo Cid
212
answered Dec 12 '18 at 3:18
Pablo Cid
212
212
add a comment |
add a comment |
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