我有一个Formview，当选择下拉列表时会填充SQL数据，但是当我单击编辑时，它想要编辑下拉列表中的第一个项目，因为从技术上讲它仍然在第一页上认为它。我希望将分页链接到下拉菜单，但我不确定如何完成此操作。我有很多字段，所以我不会发布完整的Formview，但这是关键部分。
Formview项目模板：
<ItemTemplate>
<table id="FormTable">
<tr><th>
<asp:DropDownList ID="ProjectNameDropDown" runat="server" AutoPostBack="true"
DataSourceID="SqlDataSource1"
DataValueField="Project_Name" name="Text" OnSelectedIndexChanged="ProjectSelect" AppendDataBoundItems="true">
<asp:ListItem Text="Select a Project" />
</asp:DropDownList>
<asp:Panel ID="Panel1" runat="server" Visible="false">
</th>
<th>
<asp:Button ID="EditButton" runat="server" CausesValidation="False"
CommandName="Edit" Text="Edit" />
<asp:Button ID="DeleteButton" runat="server" CausesValidation="False"
CommandName="Delete" Text="Delete" />
<asp:Button ID="NewButton" runat="server" CausesValidation="False"
CommandName="New" Text="New" />
</th></tr>
<tr><th>
Business Category:
</th><td>
<asp:Label ID="BusinessCategoryLabel" runat="server"
Text='<%# Bind("Business_Category") %>'
/>
</td></tr>
<tr><th>
Project Description:
</th><td>
<asp:TextBox ID="ProjectDescriptionLabel" runat="server" ReadOnly="true"
Text='<%# Bind("Project_Description") %>' TextMode="MultiLine" Rows="5" />
</td></tr>
<tr><th>
Operations Owner:
</th><td>
<asp:Label ID="OwnerLabel" runat="server"
Text='<%# Bind("Operations_Owner") %>' />
</td></tr>
代码背后：
protected void ProjectSelect(object sender, EventArgs e)
{
DropDownList ProjectNameDropDown = (DropDownList)FormView1.FindControl("ProjectNameDropDown");
Panel Panel1 = (Panel)FormView1.FindControl("Panel1");
Label BusinessCategoryLabel = (Label)FormView1.FindControl("BusinessCategoryLabel");
TextBox ProjectDescriptionLabel = (TextBox)FormView1.FindControl("ProjectDescriptionLabel");
Label OwnerLabel = (Label)FormView1.FindControl("OwnerLabel");
Label StakeholderLabel = (Label)FormView1.FindControl("StakeholderLabel");
Label ReqOrgLabel = (Label)FormView1.FindControl("ReqOrgLabel");
Label PriorityLabel = (Label)FormView1.FindControl("PriorityLabel");
Label DateInitiatedLabel = (Label)FormView1.FindControl("DateInitiatedLabel");
Label ReqCompletionDateLabel = (Label)FormView1.FindControl("ReqCompletionDateLabel");
Label ProjectLOELabel = (Label)FormView1.FindControl("ProjectLOELabel");
Label OELabel = (Label)FormView1.FindControl("OELabel");
Label PELabel = (Label)FormView1.FindControl("PELabel");
Label EMLabel = (Label)FormView1.FindControl("EMLabel");
Label PARCHLabel = (Label)FormView1.FindControl("PARCHLabel");
Label WindowsLabel = (Label)FormView1.FindControl("WindowsLabel");
Label StorageLabel = (Label)FormView1.FindControl("StorageLabel");
Label NetworkLabel = (Label)FormView1.FindControl("NetworkLabel");
Label Unix2Label = (Label)FormView1.FindControl("Unix2Label");
Label TSGLabel = (Label)FormView1.FindControl("TSGLabel");
Label SANDLabel = (Label)FormView1.FindControl("SANDLabel");
Label MOPSLabel = (Label)FormView1.FindControl("MOPSLabel");
Label ACSROpsLabel = (Label)FormView1.FindControl("ACSROpsLabel");
Label IMOpsLabel = (Label)FormView1.FindControl("IMOpsLabel");
Label OSCOpsLabel = (Label)FormView1.FindControl("OSCOpsLabel");
Label FinancialSvcsLabel = (Label)FormView1.FindControl("FinancialSvcsLabel");
Label VantageLabel = (Label)FormView1.FindControl("VantageLabel");
Label VoiceSysOpsLabel = (Label)FormView1.FindControl("VoiceSysOpsLabel");
Label VoiceAppOpsLabel = (Label)FormView1.FindControl("VoiceAppOpsLabel");
Label ACPxOpsLabel = (Label)FormView1.FindControl("ACPxOpsLabel");
Label WFXOpsLabel = (Label)FormView1.FindControl("WFXOpsLabel");
Label WebOpsLabel = (Label)FormView1.FindControl("WebOpsLabel");
Label DBALabel = (Label)FormView1.FindControl("DBALabel");
Label CapacityPlanningLabel = (Label)FormView1.FindControl("CapacityPlanningLabel");
Label BCPLabel = (Label)FormView1.FindControl("BCPLabel");
Label DataCenterLabel = (Label)FormView1.FindControl("DataCenterLabel");
Label GoldsmithLabel = (Label)FormView1.FindControl("GoldsmithLabel");
Label AmericasITOpsLabel = (Label)FormView1.FindControl("AmericasITOpsLabel");
Label APACITOpsLabel = (Label)FormView1.FindControl("APACITOpsLabel");
Label EMEAITOpsLabel = (Label)FormView1.FindControl("EMEAITOpsLabel");
Panel1.Visible = true;
if (ProjectNameDropDown.Items.FindByText("Select a Project").Selected != true)
{
string myConnectionString = @"Data Source=odcsgwinsql11.devcsg.com\ss2008;Initial Catalog=hulc01;Integrated Security=True";
SqlConnection myConnection = new SqlConnection(myConnectionString);
string MySelectQuery = "SELECT * FROM Common WHERE Project_Name = '" + ProjectNameDropDown.SelectedValue + "'";
using (SqlCommand cmd = new SqlCommand(MySelectQuery))
{
cmd.Connection = myConnection;
myConnection.Open();
SqlDataAdapter Adapter1 = new SqlDataAdapter(cmd);
DataSet dset = new DataSet();
Adapter1.Fill(dset);
BusinessCategoryLabel.Text = dset.Tables[0].Rows[0]["Business_Category"].ToString();
ProjectDescriptionLabel.Text = dset.Tables[0].Rows[0]["Project_Description"].ToString();
OwnerLabel.Text = dset.Tables[0].Rows[0]["Operations_Owner"].ToString();
StakeholderLabel.Text = dset.Tables[0].Rows[0]["NonOps_Key_Stakeholder"].ToString();
ReqOrgLabel.Text = dset.Tables[0].Rows[0]["Requesting_Organization"].ToString();
PriorityLabel.Text = dset.Tables[0].Rows[0]["Priority"].ToString();
DateInitiatedLabel.Text = dset.Tables[0].Rows[0]["Date_Initiated"].ToString();
ReqCompletionDateLabel.Text = dset.Tables[0].Rows[0]["Required_Completion_Date"].ToString();
ProjectLOELabel.Text = dset.Tables[0].Rows[0]["Project_LOE"].ToString();
OELabel.Text = dset.Tables[0].Rows[0]["OE"].ToString();
PELabel.Text = dset.Tables[0].Rows[0]["PE"].ToString();
EMLabel.Text = dset.Tables[0].Rows[0]["EM"].ToString();
PARCHLabel.Text = dset.Tables[0].Rows[0]["PARCH"].ToString();
WindowsLabel.Text = dset.Tables[0].Rows[0]["Windows"].ToString();
StorageLabel.Text = dset.Tables[0].Rows[0]["Storage"].ToString();
NetworkLabel.Text = dset.Tables[0].Rows[0]["Network"].ToString();
Unix2Label.Text = dset.Tables[0].Rows[0]["UNIX2"].ToString();
TSGLabel.Text = dset.Tables[0].Rows[0]["TSG"].ToString();
SANDLabel.Text = dset.Tables[0].Rows[0]["SAND"].ToString();
MOPSLabel.Text = dset.Tables[0].Rows[0]["MOPS"].ToString();
ACSROpsLabel.Text = dset.Tables[0].Rows[0]["ACSR_Ops"].ToString();
IMOpsLabel.Text = dset.Tables[0].Rows[0]["IM_Ops"].ToString();
OSCOpsLabel.Text = dset.Tables[0].Rows[0]["OSC_Ops"].ToString();
FinancialSvcsLabel.Text = dset.Tables[0].Rows[0]["Financial_Svcs"].ToString();
VantageLabel.Text = dset.Tables[0].Rows[0]["Vantage"].ToString();
VoiceAppOpsLabel.Text = dset.Tables[0].Rows[0]["Voice_Sys_Ops"].ToString();
VoiceSysOpsLabel.Text = dset.Tables[0].Rows[0]["Voice_App_Ops"].ToString();
ACPxOpsLabel.Text = dset.Tables[0].Rows[0]["ACPX_Ops"].ToString();
WFXOpsLabel.Text = dset.Tables[0].Rows[0]["WFX_Ops"].ToString();
WebOpsLabel.Text = dset.Tables[0].Rows[0]["Web_Ops"].ToString();
DBALabel.Text = dset.Tables[0].Rows[0]["DBA"].ToString();
CapacityPlanningLabel.Text = dset.Tables[0].Rows[0]["Capacity_Planning"].ToString();
BCPLabel.Text = dset.Tables[0].Rows[0]["BCP"].ToString();
DataCenterLabel.Text = dset.Tables[0].Rows[0]["Data_Center"].ToString();
GoldsmithLabel.Text = dset.Tables[0].Rows[0]["Goldsmith"].ToString();
AmericasITOpsLabel.Text = dset.Tables[0].Rows[0]["Americas_IT_Ops"].ToString();
APACITOpsLabel.Text = dset.Tables[0].Rows[0]["APAC_IT_Ops"].ToString();
EMEAITOpsLabel.Text = dset.Tables[0].Rows[0]["EMEA_IT_Ops"].ToString();
}
}
我想象某种方式告诉Formview从下拉列表中选择要切换到哪个页面，但我无法弄清楚编码。谢谢你的帮助！
答案 0 :(得分：2)
执行此操作的一种方法（我过去的方式）是将您的数据绑定DropDownList移到FormView之外。然后，将FormView绑定到依赖于SQLDataSource的SelectedValue的其他DropDownList。因此，您将拥有一个包含所有项目名称的DDL：
<asp:DropDownList ID="DropDownList1" runat="server" AutoPostBack="True"
DataSourceID="SqlDataSource1" DataTextField="Project_Name"
DataValueField="Project_Name">
</asp:DropDownList>
<asp:SqlDataSource ID="SqlDataSource1" runat="server"
ConnectionString="Your Connection String"
ProviderName="System.Data.SqlClient"
SelectCommand="SELECT DISTINCT [Project_Name] FROM [ProjectTable]">
</asp:SqlDataSource>
AND FormView取决于DDL中选择的内容：
<asp:FormView ID="FormView1" runat="server" AllowPaging="True"
DataKeyNames="Project_Name" DataSourceID="SqlDataSource2">
...
</asp:FormView>
<asp:SqlDataSource ID="SqlDataSource2" runat="server"
ConnectionString="Your Connection String"
ProviderName="System.Data.SqlClient"
SelectCommand="SELECT * FROM [ProjectTable] WHERE Project_Name=@Project_Name">
<SelectParameters>
<asp:ControlParameter ControlID="DropDownList1" Name="Project_Name"
PropertyName="SelectedValue" />
</SelectParameters>
</asp:SqlDataSource>
这样，当您点击FormView中的“修改”按钮时，您正在编辑您要编辑的记录。
作为旁注，您的Code Behind使您非常容易受到SQL注入攻击。我会小心的。您应该使用参数化查询
，而不是使用字符串连接来生成SELECT查询