Unplanned
Last Updated:
07 May 2026 13:08
by Igor
Igor
Created on:
07 May 2026 13:08
Category:
TabStrip
Type:
Bug Report
PersistTabContent breaks lazy initialization when tabs transition from Visible=false to Visible=true
With `PersistTabContent="true"`, when tabs start with `Visible="false"` and later become `Visible="true"`, all visible tab contents are instantiated simultaneously instead of only the active tab.
Reproduction:
@page "/TestPage"
<button @onclick="Load">Load</button>
<TelerikTabStrip PersistTabContent="true">
<TabStripTab Title="Tab 1" Visible="@_tabsVisible">
<TestInitComponent Message="Hello from tab1" />
</TabStripTab>
<TabStripTab Title="Tab 2" Visible="@_tabsVisible">
<TestInitComponent Message="Hello from tab2" />
</TabStripTab>
<TabStripTab Title="Tab 3" Visible="@_tabsVisible">
<TestInitComponent Message="Hello from tab3" />
</TabStripTab>
</TelerikTabStrip>
@code {
private bool _tabsVisible = false;
private void Load()
{
_tabsVisible = true;
}
}TestInitComponent.razor
<h3>TestInitComponent</h3>
@code {
[Parameter]
public string Message { get; set; } = string.Empty;
protected override void OnInitialized()
{
base.OnInitialized();
Console.WriteLine($"TestInitComponent OnInitialized {Message}");
}
}Steps: Open page → click Load.
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