【发布时间】:2015-03-26 08:47:43
【问题描述】:
我有一个表单,我在其中使用名称为 Password1 的输入字段。回发后,我需要使用 viewstate 维护密码中的值。我怎么能在 ASP.NET 中做到这一点。我的代码是一个注册表单,我在其中提供了密码字段。我已经为下拉列表提供了自动回发。当自动回发发生时,密码字段变空。而不是我需要保持密码的原样。
<div>
<%--<asp:ScriptManager runat="server"></asp:ScriptManager>--%>
<ajaxToolkit:ToolkitScriptManager runat="server">
</ajaxToolkit:ToolkitScriptManager>
<h1 style="color:bisque;text-align:center;">USER FORM REGISTRATION</h1>
<table class="auto-style1" style="color:crimson">
<tr>
<td class="auto-style2">First Name</td>
<td class="auto-style3">
<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
</td>
</tr>
<tr>
<td class="auto-style2">Last Name</td>
<td class="auto-style3">
<asp:TextBox ID="TextBox5" runat="server"></asp:TextBox>
</td>
</tr>
<tr>
<td class="auto-style2">Password</td>
<td class="auto-style3">
<input id="Password1" type="password" runat="server"/></td>
</tr>
<tr>
<td class="auto-style2">Date of Birth</td>
<td class="auto-style3">
<asp:TextBox ID="TextBox2" runat="server"
ClientIDMode="Static" ReadOnly="true"></asp:TextBox>
<asp:Image ID="imgCal" DescriptionUrl="#.jpg"
AlternateText="" runat="server" />
<ajaxToolkit:CalendarExtender ID="Calend" runat="server"
Animated="true" PopupButtonID="imgCal" TargetControlID="TextBox2">
</ajaxToolkit:CalendarExtender>
</td>
</tr>
<tr>
<td class="auto-style2">Age</td>
<td class="auto-style3">
<asp:TextBox ID="TextBox7" runat="server"
ClientIDMode="Static" ReadOnly="true"></asp:TextBox>
</td>
</tr>
<tr>
<td class="auto-style2">Gender</td>
<td class="auto-style3">
<asp:RadioButtonList ID="RadioButtonList1" runat="server"
RepeatDirection="Horizontal">
<asp:ListItem>Male</asp:ListItem>
<asp:ListItem>Female</asp:ListItem>
</asp:RadioButtonList></td>
</tr>
<tr>
<td class="auto-style2">Nationality</td>
<td class="auto-style3">
<asp:DropDownList ID="DropDownList1" runat="server"
Width="145px" AutoPostBack="true"
OnSelectedIndexChanged="DropDownList1_SelectedIndexChanged">
<asp:ListItem Value="0">n1</asp:ListItem>
<asp:ListItem Value="1">loc2</asp:ListItem>
<asp:ListItem Value="2">loc3</asp:ListItem>
<asp:ListItem Value="3">other</asp:ListItem>
<asp:ListItem></asp:ListItem>
</asp:DropDownList>
<asp:TextBox ID="TextBox9" runat="server" Visible="false">
</asp:TextBox>
</td>
</tr>
<tr>
<td class="auto-style2">Mobile Number</td>
<td class="auto-style3">
<asp:TextBox ID="TextBox3" runat="server"></asp:TextBox>
</td>
</tr>
<asp:UpdatePanel ID="Update1" runat="server">
<ContentTemplate>
<tr>
<td class="auto-style2">Residential Adress</td>
<td class="auto-style3">
<textarea id="TextArea1" cols="20" name="TextArea1"
runat="server"></textarea></td>
</tr>
</ContentTemplate>
</asp:UpdatePanel>
</table>
</div>
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