TabStrip Persist Content
The TabStrip always renders the content of a Tab when this Tab becomes active. Once the Tab is deactivated, its content is disposed and re-initialized again when the user selects the corresponding Tab later.
To keep Tab content in the DOM after the Tab is deactivated, set the PersistContent boolean parameter of the TabStrip to true. In this way the inactive TabStrip content will be hidden with CSS.
Persist the TabStrip content
<h3>PersistTabContent="true"</h3>
<TelerikTabStrip PersistTabContent="true">
<TabStripTab Title="First">
Type something in the textbox. Go to the other tab and then return.
<br />
<TelerikTextBox Width="200px" />
</TabStripTab>
<TabStripTab Title="Second">
Go back to the first tab to see the typed content.
</TabStripTab>
</TelerikTabStrip>
<h3>PersistTabContent="false"</h3>
<TelerikTabStrip>
<TabStripTab Title="First">
Type something in the textbox. Go to the other tab and then return.
<br />
<TelerikTextBox Width="200px" />
</TabStripTab>
<TabStripTab Title="Second">
The TextBox value in the first tab will not be persisted.
</TabStripTab>
</TelerikTabStrip>