Ex:
Kod:
<asp:CheckBox ID="CheckBox1" runat="server" Text="CheckBox1" OnCheckedChanged="CheckBox1_CheckedChanged" AutoPostBack="True" />
<asp:TextBox ID="Text1" runat="server"></asp:TextBox>
<asp:TextBox ID="Text2" runat="server"></asp:TextBox>
<asp:TextBox ID="Text3" runat="server"></asp:TextBox>
Kod:
protected void CheckBox1_CheckedChanged(object sender, EventArgs e)
{
Text2.ReadOnly = CheckBox1.Checked;
Text3.ReadOnly = CheckBox1.Checked;
}