Can't able to retrieve selected nodes in PageLoad

Thread ID:	Created:	Updated:	Platform:	Replies:
143719	Apr 2,2019 11:51 AM UTC	Apr 3,2019 12:39 PM UTC	Angular - EJ 2	1

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Tags: Treeview

Ebenezer

Asked On April 2, 2019 11:51 AM UTC

Hi,

I was unable to load the selected nodes in tree view control though i saved the selected nodes in separate variable and push it back again. Kindly check and provide with relevant example.

I have attached sample codes for biding and retrieving selected nodes below.

Regards,

Justin Ebenezer

Attachment: bug_fbd98e95.zip

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Christopher Issac Sunder K [Syncfusion]

Replied On April 3, 2019 12:39 PM UTC

Hi Ebenezer,

Greetings from Syncfusion!!!

We have prepared sample by saving the selected Nodes in a separate array and push back it to the treeview control afterwards. In the sample, we get the set of nodes from the service and push it to a temp array if the id matches with the dataSource. Please check the following code snippet.

let selectedModels = this.dataService.requestData().selectedTreeNodes;

//compares whether the id present in dataSource and push it to an array if it exists

const selectedArr = [];

for (let j = 0; j < this.field.dataSource.length; j++) {

let id = this.field.dataSource[j]["id"].toString();

if (selectedModels.indexOf(id) !== -1)

selectedArr.push(id);

}

return selectedArr;

Sample: http://www.syncfusion.com/downloads/support/forum/143719/ze/selectedNodes-959416065

Please check the sample and let us know if we misunderstood your query or need any further assistance.

Thanks,
Christo

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Can't able to retrieve selected nodes in PageLoad

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