設計頭身檔的情況下 畫面上方是利用table方式建立的欄位 畫面下方是GridView  按下這顆按鈕時會使上方欄位的值被清空 原本按鈕程式碼設計: ``` <%--<asp:Button ID="btAddMaterial" runat="server" CssClass="circle_button_add" ToolTip="新增明細" />--%> ``` **runat="server"** 的關係會造成頁面PostBack 改寫成: ``` <img id="btAddMaterial" alt="" src="../Images/circle_button_add_normal.png" css="circle_button_add" tooltip="新增明細" onclick="DoOpenQuotationSetEdit()" /> ``` 不要使用有**runat="server"**,就可以解決這問題。
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