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問題是我有一個date
文本框和一個shifts
下拉。當我選擇一個日期和班次時,我得到了員工名單。下拉菜單中有onSelectedIndexChanged
事件,因此只有在我們更改班次時纔會填充員工列表。所以對於日期chage我添加了一個JavaScript重置shift dropdown
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索引。因此,每次更改日期時,您也必須選擇輪班,並且會觸發selectindex更改事件。 但是the problem is when I reset shifts dropdown from javascript it is done only in client side not in server side.So if I select dropdownt to the previous value it doesn't fire the change event but for other values it works fine
。如何重置下拉選擇索引serverside值從JavaScript?
<asp:TextBox ID="txtSelectDate" runat="server" CssClass="inputAddRes" onchange="javascript:return ResetShifts();"></asp:TextBox>
<asp:DropDownList ID="ddlShifts" AutoPostBack="true" OnSelectedIndexChanged="ddlShifts_SelectedIndexChanged" runat="server" >
<asp:ListItem Text="Morning" Value="1"/>
<asp:ListItem Text="Evening" Value="2"/>
<asp:ListItem Text="Night" Value="3"/>
</asp:DropDownList>
function ResetShifts() {
document.getElementById('<%= ddlShifts.ClientID %>').selectedIndex = 0;
}