使用asp.net和C＃，我正在建立一个训练练习项目，我已经明确禁止使用参数化。明确。由我的老板。这是我的第一个项目，他决定重点关注其他事情。话虽这么说，我的问题是我有一个添加产品页面，显示更新面板，输入表单在下拉列表中选择后可见。这个功能很好。但是，产品表单上的提交按钮（应该使用户输入表单不可见，将数据插入数据库，显示另一个更新面板可见，并使用相同的数据填充标签）已经失效。它没有做任何事情。我的源代码和代码分别在下面。再次，明确禁止参数化。
<asp:UpdatePanel ID="UdpEPL" runat="server" UpdateMode="Conditional" Visible="False">
<ContentTemplate>
<asp:Label ID="LblEplEntity" runat="server" Text="Type Of Entity"></asp:Label>
<asp:TextBox ID="TbEplEntity" runat="server"></asp:TextBox>
<br />
<asp:Label ID="LblEplTotalEmpl" runat="server" Text="Total Number of Employees"></asp:Label>
<asp:TextBox ID="TbEplTotalEmpl" runat="server"></asp:TextBox>
<br />
<asp:Label ID="LblEplCalEmpl" runat="server" Text="Employees in California"></asp:Label>
<asp:TextBox ID="TbEplCalEmpl" runat="server"></asp:TextBox>
<br />
<asp:Label ID="LblEplMichEmpl" runat="server" Text="Employees in Michigan"></asp:Label>
<asp:TextBox ID="TbEplMichEmpl" runat="server"></asp:TextBox>
<br />
<asp:Label ID="LblEplNyEmpl" runat="server" Text="Employees in New York"></asp:Label>
<asp:TextBox ID="TbEplNyEmpl" runat="server"></asp:TextBox>
<br />
<asp:Label ID="LblEplNjEmpl" runat="server" Text="Employees in New Jersey"></asp:Label>
<asp:TextBox ID="TbEplNjEmpl" runat="server"></asp:TextBox>
<br />
<asp:Label ID="LblEplPrimEx" runat="server" Text="Primary/Excess"></asp:Label>
<asp:TextBox ID="TbEplPrimEx" runat="server"></asp:TextBox>
<br />
<asp:Label ID="LblEplLim" runat="server" Text="Limit"></asp:Label>
<asp:TextBox ID="TbEplLim" runat="server"></asp:TextBox>
<br />
<asp:Label ID="LblEplEplSir" runat="server" Text="EPL SIR"></asp:Label>
<asp:TextBox ID="TbEplEplSir" runat="server"></asp:TextBox>
<br />
<asp:Label ID="LblEplPrem" runat="server" Text="Premium"></asp:Label>
<asp:TextBox ID="TbEplPrem" runat="server"></asp:TextBox>
<br />
<asp:Label ID="LblEplWage" runat="server" Text="Wage & Hour Sublimit"></asp:Label>
<asp:TextBox ID="TbEplWage" runat="server"></asp:TextBox>
<br />
<asp:Label ID="LblEplInvestCost" runat="server" Text="Sublimit for Investigative Costs"></asp:Label>
<asp:TextBox ID="TbEplInvestCost" runat="server"></asp:TextBox>
<br />
<br />
<asp:Button ID="BtnEplSubmit" runat="server" Text="Submit"
/>
</ContentTemplate>
</asp:UpdatePanel>
<!--This is where the view only panel starts! Hope it works. -->
<asp:UpdatePanel ID="UdpEplShow" runat="server" UpdateMode="Conditional" Visible="False">
<ContentTemplate>
<asp:Label ID="LblEplViewEntity" runat="server" Text="Type of Entity"></asp:Label>
<asp:Label ID="LblEplShowEntity" runat="server"></asp:Label>
<br />
<asp:Label ID="LblEplViewTotalEmpl" runat="server" Text="Total Number of Employees"></asp:Label>
<asp:Label ID="LblEplShowTotalEmpl" runat="server"></asp:Label>
<br />
<asp:Label ID="LblEplViewCalEmpl" runat="server" Text="Employees in California"></asp:Label>
<asp:Label ID="LblEplShowCalEmpl" runat="server"></asp:Label>
<br />
<asp:Label ID="LblEplViewMichEmpl" runat="server" Text="Employees in Michigan"></asp:Label>
<asp:Label ID="LblEplShowMichEmpl" runat="server"></asp:Label>
<br />
<asp:Label ID="LblEplViewNyEmpl" runat="server" Text="Employees in New York"></asp:Label>
<asp:Label ID="LblEplShowNyEmpl" runat="server"></asp:Label>
<br />
<asp:Label ID="LblEplViewNjEmpl" runat="server" Text="Employees in New Jersey"></asp:Label>
<asp:Label ID="LblEplShowNjEmpl" runat="server"></asp:Label>
<br />
<asp:Label ID="LblEplViewPrimEx" runat="server" Text="Primary/Excess"></asp:Label>
<asp:Label ID="LblEplShowPrimEx" runat="server"></asp:Label>
<br />
<asp:Label ID="LblEplViewLim" runat="server" Text="Limit"></asp:Label>
<asp:Label ID="LblEplShowLim" runat="server"></asp:Label>
<br />
<asp:Label ID="LblEplViewEplSir" runat="server" Text="EPL SIR"></asp:Label>
<asp:Label ID="LblEplShowSir" runat="server"></asp:Label>
<br />
<asp:Label ID="LblEplViewPrem" runat="server" Text="Premium"></asp:Label>
<asp:Label ID="LblEplShowPrem" runat="server"></asp:Label>
<br />
<asp:Label ID="LblEplViewWage" runat="server" Text="Wage & Hour Sublimit"></asp:Label>
<asp:Label ID="LblEplShowWage" runat="server"></asp:Label>
<br />
<asp:Label ID="LblEplViewInvestCost" runat="server" Text="Sublimit for Investigative Costs"></asp:Label>
<asp:Label ID="LblEplShowInvestCost" runat="server"></asp:Label>
</ContentTemplate>
</asp:UpdatePanel>
protected void BtnEplSubmit_Click(object sender, EventArgs e)
{
string connectionString = System.Configuration.ConfigurationManager.ConnectionStrings["MyConnectionString"].ConnectionString;
string EplQuery = "INSERT INTO EPL (Entity, Employees, CA, MI, NY, NJ, Primex, EplLim, EplSir, Premium, Wage, Sublim) VALUES ('" + TbEplEntity + "', '" + TbEplTotalEmpl + "', '" + TbEplCalEmpl + "', '" + TbEplMichEmpl + "', '" + TbEplNyEmpl + "', '" + TbEplNjEmpl + "', '" + TbEplPrimEx + "', '" + TbEplLim + "', '" + TbEplEplSir + "', '" + TbEplPrem + "', '" + TbEplWage + "', '" + TbEplInvestCost + "')";
string EplIdQuery = "SELECT SCOPE_IDENTITY() AS LastInsertedInstanceId";
using (SqlConnection EplConn = new SqlConnection(connectionString))
{
EplConn.Open();
SqlCommand EplCmd = new SqlCommand(EplQuery, EplConn);
SqlCommand EplIdCmd = new SqlCommand(EplIdQuery, EplConn);
using (EplCmd)
using (EplIdCmd)
{
EplCmd.ExecuteNonQuery();
SqlDataReader EplDr = EplIdCmd.ExecuteReader();
EplDr.Read();
int lastInsertedInstanceId = Convert.ToInt32(EplDr[0]);
}
string x = Request.QueryString["InstanceId"];
string EplShowQuery = "SELECT Entity, Employees, CA, MI, NY, NJ, Primex, EplLim, EplSir, Premium, Wage, Sublim FROM EPL WHERE InstanceId =" + x;
using (SqlCommand EplShowCmd = new SqlCommand(EplShowQuery, EplConn))
{
SqlDataReader EplDr = EplShowCmd.ExecuteReader();
EplDr.Read();
LblEplShowEntity.Text = EplDr.GetString(0);
LblEplShowTotalEmpl.Text = EplDr.GetInt32(1).ToString();
LblEplShowCalEmpl.Text = EplDr.GetInt32(2).ToString();
LblEplShowMichEmpl.Text = EplDr.GetInt32(3).ToString();
LblEplShowNyEmpl.Text = EplDr.GetInt32(4).ToString();
LblEplShowNjEmpl.Text = EplDr.GetInt32(5).ToString();
LblEplShowPrimEx.Text = EplDr.GetInt32(6).ToString();
LblEplShowLim.Text = EplDr.GetInt32(7).ToString();
LblEplShowSir.Text = EplDr.GetInt32(8).ToString();
LblEplShowPrem.Text = EplDr.GetInt32(9).ToString();
LblEplShowWage.Text = EplDr.GetInt32(10).ToString();
LblEplShowInvestCost.Text = EplDr.GetInt32(11).ToString();
}
}
if (TbEplInvestCost.Text != null)
{
//something about these next two lines seems unsafe, like they should be conditional, but I don't know why. Ask.
UdpEPL.Visible = false;
UdpEplShow.Visible = true;
}
}
答案 0 :(得分：1)
我可能会说明显而易见的，但是在您提供的代码示例中，按钮没有指定OnClick事件处理程序。
除此之外，您可能必须在UpdatePanel中显式添加同步触发器，或在UpdatePanel中指定ChildrenAsTriggers =“false”。
答案 1 :(得分：0)
在您的按钮组AutoPostBack="true"