How to avoid page refresh after button click event in asp.net/vb.net

Admin 1
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In the following code when I click on my Clear_Button my OnClick event refreshes my page and I don't want that to happen. How can I prevent this from happening?

<dx:ASPxButton ID="Clear_Button" runat="server" AutoPostBack="false" CssClass="bordered-orange roundCorners toRight toMiddle" Text="Clear" Width="18%" Theme="Metropolis">
</dx:ASPxButton>

My Event :

Protected Sub Clear_Button_Click(sender As Object, e As EventArgs)

    Author.Items.Clear()

End Sub

Thank you in advance for your answers

devexpress css vb.net asp.net html
4 Answers

event.preventDefault(); will work

user_140268780

Try to use in frontend like javascript to clearing your data or refreshing your page without postback <asp:Button ID="Clear_Button" runat="server" CssClass="bordered-orange roundCorners toRight toMiddle" Text="Clear" Width="18%" Theme="Metropolis" OnClientClick="return resetButtonClick();"Text="Reset" /> <script type="text/javascript"> function resetButtonClick() { $("#<%= txt1.ClientID %>").val("");$("#<%= txt2.ClientID %>").val(""); return false;}</script>

user_161849640

To prevent refresh, you can use:

<dx:ASPxButton ...     OnClientClick="return false;" >
</dx:ASPxButton>
user_53986470

thank you for your answers !

I managed to make it work thanks to the <asp:updatepanel> element which allows not to refresh the page

Admin1
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