Asp.net中文本框全選

1.在html頁面中天機textBox控件html <span style="font-size:18px;"><asp:TextBox ID="txtSupplier" runat="server" Text="優加" onMouseOver="this.focus();this.select()"></asp:TextBox></span> 2.在窗體加載事件中添加代碼 <span style

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