Pasting user input is not working in Telerik RadcomboBox

[Vaithilingam]

In my application, there is Telerik combobox.
which gets the user email as input and lists the available user emails

When manually typing the value it gave the exact match 

But when there is some change like using small letters instead of first letter caps
radcombobox not returning the exact match.

your suggestions are appreciated

Thanks

[Doncho]

Hi Vaithilingam,

Could you please share a basic sample of a ComboBox that has the reported behavior along with the exact steps needed for replicating it?

For instance, you can use a Combo with statically declared items, just to help me replicate the issue on my end:

<telerik:RadComboBox ID="RadComboBox1" runat="server" RenderMode="Lightweight" Filter="Contains">
    <Items>
        <telerik:RadComboBoxItem Text="Item 1" />
        <telerik:RadComboBoxItem Text="Item 2" />
        <telerik:RadComboBoxItem Text="Item 3" />
        <telerik:RadComboBoxItem Text="Item 4" />
    </Items>
</telerik:RadComboBox>

Or else, refer to any of our existing live demos and let me know the exact steps for replicating the behavior:

• https://demos.telerik.com/aspnet-ajax/combobox/examples/overview/defaultcs.aspx