Hi Kishor,
Greetings from Syncfusion support.
We have validated the issue of the “Dropdown tree
popup not opening for versions above 26.x.x” with our latest version
27.1.50 but were unable to replicate it. The popup open and close actions work
as expected. If the issue persists, please share the code details to help us
provide a prompt solution.
Additionally, we would like to inform you that the popup
element is rendered based on the available space. If there is insufficient
space at the bottom, it will move to the top position.
We can prevent the popup from closing in the “OnPopupClose”
event by setting “args.Cancel”
to true. This will keep the popup in an open state.
Refer to the below code snippet for reference.
|
@using Syncfusion.Blazor.Navigations
@using
Syncfusion.Blazor.DropDowns
<SfDropDownTree TItem="Listdata"
TValue="string" ID="checkbox" ShowSelectAll
AllowMultiSelection ShowCheckBox="true"
AutoUpdateCheckState="true" Mode="DdtVisualMode.Box" OnPopupClose="OnClose">
<DropDownTreeField
TItem="Listdata" DataSource="@ListDataSource"
ID="Id" ParentID="Pid" Text="Name"
HasChildren="HasChild"
Expanded="Expanded"></DropDownTreeField>
</SfDropDownTree>
@code {
public void OnClose(PopupEventArgs args)
{
args.Cancel = true;
}
List<Listdata>
ListDataSource = new List<Listdata>
{
new Listdata
{ Id = "1", Name = "Australia", HasChild = true, Expanded
= true },
…
|
Sample:
Attached as zip file.
Best regards,
Vishwanathan
Attachment:
BlazorDropdownTree_b646b38e.zip
