[英]Angular4 - How to set select option value dynamically
I have a select list with the code - 我有一个包含代码的选择列表 -
<select (change)='onGroupChange($event)'>
<option *ngFor="let group of groups" value={{group.group_name}}>
{{group.group_name}}
</option>
</select>
Now I have a group name value saved as a different variable and I want to set that as the select list value if it matches any. 现在我将组名值保存为另一个变量,如果匹配任何变量,我想将其设置为选择列表值。
<select (change)='onGroupChange($event)'>
<option *ngFor="let group of groups" value={{group.group_name}} [selected]="group.group_name==myVariable">
{{group.group_name}}
</option>
</select>
<select [(ngModel)]="selectedGroup" (ngModelChange)="onGroupChange($event)">
<option *ngFor="let group of groups" [value]="group.group_name">
{{group.group_name}}
</option>
</select>
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