Set Selected Text of RadioButtonList using C# and VB.Net in ASP.Net

Hi alhakimyyes,

Refer below sample.

HTML

<asp:RadioButtonList runat="server" ID="rblOptions">
    <asp:ListItem Text="New" />
    <asp:ListItem Text="Edit" />
    <asp:ListItem Text="Exit" />
</asp:RadioButtonList>
<asp:Button Text="Add" runat="server" OnClick="OnAdd" />

Code

C#

protected void OnAdd(object sender, EventArgs e)
{
    string active = "New";
    if (rblOptions.Items.FindByText(active) != null)
    {
        rblOptions.Items.FindByText(active).Selected = true;
    }
}

VB.Net

Protected Sub OnAdd(sender As Object, e As EventArgs)
    Dim active As String = "New"
    If rblOptions.Items.FindByText(active) IsNot Nothing Then
        rblOptions.Items.FindByText(active).Selected = True
    End If
End Sub

Screenshot