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我有一個簡單的網頁形式與一些下拉和文本框。我試圖通過循環遍歷控件來獲取所有元素的值。 (注意我假設我不知道元素的名稱/ ID,因此我試圖通過它們來獲取信息並將其存儲在數據庫中)。但是,當我通過控制循環時,即使有4個輸入元件和控制由System.Web.UI.LiteralControl代替System.Web.UI.WebControls.TextBox或System.Web.UI.WebControls.dropdown無法通過web窗體循環控制在c#
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<script src="Datepicker/jquery-1.7.js" type="text/javascript"></script>
<script src="Datepicker/jquery-ui.js" type="text/javascript"></script>
<link rel="stylesheet" href="//code.jquery.com/ui/1.11.4/themes/smoothness/jquery-ui.css" />
<script>
$(function() {
$("#targetDueDate").datepicker();
});
</script>
<script>
$(function() {
$("#targetdeliveryoffiles").datepicker();
});
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<table>
<tr>
<td>Tier:
</td>
<td>
<asp:DropDownList ID="tier" runat="server">
<asp:ListItem>Select Tier</asp:ListItem>
<asp:ListItem>Tier1</asp:ListItem>
<asp:ListItem>Tire2</asp:ListItem>
<asp:ListItem>Tier3</asp:ListItem>
</asp:DropDownList>
</td>
</tr>
<tr>
<td>Author:
</td>
<td>
<asp:DropDownList ID="author" runat="server">
<asp:ListItem>Select Author</asp:ListItem>
<asp:ListItem>Author1</asp:ListItem>
<asp:ListItem>Author2</asp:ListItem>
<asp:ListItem>Author3</asp:ListItem>
</asp:DropDownList>
</td>
</tr>
<tr>
<td>Quotation For:
</td>
<td>
<asp:TextBox ID="quotationFor" runat="server"></asp:TextBox>
</td>
</tr>
<tr>
<td>Previous Est #:</td>
<td>
<asp:TextBox ID="previousEst" runat="server"></asp:TextBox>
<asp:RegularExpressionValidator ID="RegularExpressionValidator1"
ControlToValidate="previousEst"
ValidationExpression="\d+"
Display="Dynamic"
EnableClientScript="true"
ErrorMessage="Please enter numbers only"
runat="server" ValidationGroup="a" ForeColor="Red" />
</td>
</tr>
</table>
<br />
<div style="text-align: center; width: 327px;">
<asp:Button ID="submit" runat="server" Text="Submit" CssClass="btnsubmit" ValidationGroup="a" OnClick="submit_Click" />
</div>
</div>
</form>
</body>
</html>
的的onsubmit代碼表示
protected void submit_Click(object sender, EventArgs e)
{
foreach(Control c in controls)
{
if(c is System.Web.UI.WebControls.TextBox)
{
/// Do Something
}
}
}
我在做什麼錯?我如何通過元素循環來獲取它們的值? (也因爲我需要在數據庫中存儲兩個ID)