將表單值插入到asp.net中的數據庫中

Question

我很開心在asp.net中。我試圖將表單字段值插入到oracle數據庫表中。我已經嘗試了下面的代碼。但是我收到了「缺少表達式」的錯誤。請幫幫我。

Default.aspx的代碼：

<%@ Page Title="Home Page" Language="C#" MasterPageFile="~/Site.Master" AutoEventWireup="true" 
    CodeBehind="Default.aspx.cs" Inherits="Demo._Default" %> 

<asp:Content runat="server" ID="FeaturedContent" ContentPlaceHolderID="FeaturedContent"> 
      </asp:Content> 
<asp:Content runat="server" ID="BodyContent" ContentPlaceHolderID="MainContent"> 

     <table align="center" class="auto-style1"> 
     <tr> 
      <td class="auto-style2">Activity Type</td> 
      <td> 
       <asp:DropDownList ID="ActivityTypeDropDown" runat="server" AutoPostBack="True" OnSelectedIndexChanged="ActivityTypeDropDown_SelectedIndexChanged" > 
        <asp:ListItem Text="--Select" Value="" /> 
        <asp:ListItem>Ticket</asp:ListItem> 
        <asp:ListItem>Non-Ticket</asp:ListItem> 
       </asp:DropDownList> 
       <asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server" ControlToValidate="ActivityTypeDropDown" ErrorMessage="Please select Activity Type">*</asp:RequiredFieldValidator> 
      </td> 
     </tr> 
     <tr> 
      <td class="auto-style2"> 
       <asp:Label ID="TktnoLable" runat="server" Text="Ticket NO"></asp:Label> 
      </td> 
      <td> 
       <asp:TextBox ID="TicketNoTextBox" runat="server"></asp:TextBox> 
       <asp:RequiredFieldValidator ID="RequiredFieldValidator8" runat="server" ControlToValidate="TicketNoTextBox" ErrorMessage="Please enter the ticket number">*</asp:RequiredFieldValidator> 
      </td> 
     </tr> 
     <tr> 
      <td class="auto-style2">Ticket Category</td> 
      <td> 
       <asp:DropDownList ID="TicketCategoryTextBox" runat="server"> 
        <asp:ListItem>--Select--</asp:ListItem> 
        <asp:ListItem>Adhoc</asp:ListItem> 
        <asp:ListItem>Batch Run</asp:ListItem> 
        <asp:ListItem>Bug Fix</asp:ListItem> 
        <asp:ListItem>CR</asp:ListItem> 
        <asp:ListItem>Enhancement</asp:ListItem> 
        <asp:ListItem>Issue</asp:ListItem> 
        <asp:ListItem>Others</asp:ListItem> 
       </asp:DropDownList> 
      </td> 
     </tr> 
     <tr> 
      <td class="auto-style2">Ticket Description</td> 
      <td> 
       <asp:TextBox ID="TicketDescriptionTextBox" TextMode="MultiLine" runat="server" Width="200px"></asp:TextBox> 
       <asp:RequiredFieldValidator ID="RequiredFieldValidator9" runat="server" ControlToValidate="TicketDescriptionTextBox" ErrorMessage="Please provide ticket description">*</asp:RequiredFieldValidator> 
      </td> 
     </tr> 
     <tr> 
      <td class="auto-style7">Activity Description</td> 
      <td class="auto-style8"> 
       <asp:TextBox ID="activityDescriptionTextBox" TextMode="MultiLine" runat="server" Width="200px"></asp:TextBox> 
       <asp:RequiredFieldValidator ID="RequiredFieldValidator10" runat="server" ControlToValidate="activityDescriptionTextBox" ErrorMessage="Please provide activity description">*</asp:RequiredFieldValidator> 
      </td> 
     </tr> 
     <tr> 
      <td class="auto-style2">Module</td> 
      <td> 
       <asp:TextBox ID="ModuleTextBox" runat="server"></asp:TextBox> 
      </td> 
     </tr> 
     <tr> 
      <td class="auto-style3">Priority</td> 
      <td class="auto-style4"> 
       <asp:DropDownList ID="PriorityDropDown" runat="server"> 
        <asp:ListItem Text="--Select--" Value="" /> 
        <asp:ListItem>High</asp:ListItem> 
        <asp:ListItem>Medium</asp:ListItem> 
        <asp:ListItem>Low</asp:ListItem> 
       </asp:DropDownList> 
       <asp:RequiredFieldValidator ID="RequiredFieldValidator4" runat="server" ControlToValidate="PriorityDropDown" ErrorMessage="Please select priority">*</asp:RequiredFieldValidator> 
      </td> 
     </tr> 
     <tr> 
      <td class="auto-style2">Resource</td> 
      <td> 
       <asp:DropDownList ID="ResourceDropDown" runat="server"> 
        <asp:ListItem text="--Select--" Value="" /> 
        <asp:ListItem>Apporva</asp:ListItem> 
        <asp:ListItem>Arun</asp:ListItem> 
        <asp:ListItem>Harshal</asp:ListItem> 
        <asp:ListItem>Kiran</asp:ListItem> 
        <asp:ListItem>Nitin</asp:ListItem> 
        <asp:ListItem>Vagmita</asp:ListItem> 
       </asp:DropDownList> 
       <asp:RequiredFieldValidator ID="RequiredFieldValidator5" runat="server" ControlToValidate="ResourceDropDown" ErrorMessage="Please Select a resource">*</asp:RequiredFieldValidator> 
      </td> 
     </tr> 
     <tr> 
      <td class="auto-style2">Creation Date</td> 
      <td> 
       <asp:TextBox ID="CreationDateTextBox" runat="server"></asp:TextBox> 
       <asp:RequiredFieldValidator ID="RequiredFieldValidator6" runat="server" ControlToValidate="CreationDateTextBox" ErrorMessage="Please provide creation date">*</asp:RequiredFieldValidator> 
       <asp:CompareValidator ID="creationdatevalidator" runat="server" ControlToValidate="CreationDateTextBox" ErrorMessage="Please enter valid creation date" Operator="DataTypeCheck" Type="Date">*</asp:CompareValidator> 
      </td> 
     </tr> 
     <tr> 
      <td class="auto-style2">Assignment Date</td> 
      <td> 
       <asp:TextBox ID="AssignmentDateTextBox" runat="server"></asp:TextBox> 
       <asp:CompareValidator ID="assignmentdatevalidator" runat="server" ControlToValidate="AssignmentDateTextBox" ErrorMessage="please enter valid assignment date" Operator="DataTypeCheck" Type="Date">*</asp:CompareValidator> 
      </td> 
     </tr> 
     <tr> 
      <td class="auto-style3">Status</td> 
      <td class="auto-style4"> 
       <asp:DropDownList ID="StatusDropDown" runat="server" AutoPostBack="True" OnSelectedIndexChanged="StatusDropDown_SelectedIndexChanged"> 
        <asp:ListItem Text="--select--" Value="" /> 
        <asp:ListItem>WIP</asp:ListItem> 
        <asp:ListItem>Completed</asp:ListItem> 
       </asp:DropDownList> 
       <asp:RequiredFieldValidator ID="RequiredFieldValidator7" runat="server" ControlToValidate="StatusDropDown" ErrorMessage="Please select status">*</asp:RequiredFieldValidator> 
      </td> 
     </tr> 
     <tr> 
      <td class="auto-style2"> 
       <asp:Label ID="CompletionDateLable" runat="server" Text="Completion Date"></asp:Label> 
      </td> 
      <td> 
       <asp:TextBox ID="CompletionDateTextBox" runat="server"></asp:TextBox> 
       <asp:CompareValidator ID="completiondatevalidator" runat="server" ErrorMessage="Please enter valid completion date" Operator="DataTypeCheck" Type="Date" ControlToValidate="CompletionDateTextBox">*</asp:CompareValidator> 
      </td> 
     </tr> 
     <tr> 
      <td class="auto-style5">Remarks</td> 
      <td class="auto-style6"> 
       <asp:TextBox ID="RemarksTextBox" runat="server"></asp:TextBox> 
      </td> 
     </tr> 
     <tr> 
      <td class="auto-style2">Efforts</td> 
      <td> 
       <asp:TextBox ID="EffortsTextBox" runat="server"></asp:TextBox> 
      </td> 
     </tr> 
     <tr> 
      <td class="auto-style2">&nbsp;</td> 
      <td> 
       <asp:ValidationSummary ID="ValidationSummary1" runat="server" /> 
       <br /> 
       <asp:Button ID="SubmitButton" runat="server" OnClick="Button1_Click" Text="Submit" /> 
       <asp:Button ID="ResetButton" runat="server" OnClick="ResetButton_Click" Text="Reset" /> 
       <br /> 
       <asp:Label ID="Label1" runat="server"></asp:Label> 
      </td> 
     </tr> 
    </table> 

</asp:Content> 
<asp:Content ID="Content1" runat="server" contentplaceholderid="HeadContent"> 
    <style type="text/css"> 
     .auto-style1 { 
      width: 100%; 
     } 
     .auto-style2 { 
      width: 119px; 
     } 
     .auto-style3 { 
      width: 119px; 
      height: 31px; 
     } 
     .auto-style4 { 
      height: 31px; 
     } 
    .auto-style5 { 
     width: 119px; 
     height: 28px; 
    } 
    .auto-style6 { 
     height: 28px; 
    } 
     .auto-style7 { 
      width: 119px; 
      height: 47px; 
     } 
     .auto-style8 { 
      height: 47px; 
     } 
    </style> 
</asp:Content> 

default.aspx.cs代碼：

using System; 
using System.Collections.Generic; 
using System.Linq; 
using System.Web; 
using System.Web.UI; 
using System.Web.UI.WebControls; 
using Oracle.DataAccess; 
using Oracle.DataAccess.Client; 

namespace Demo 
{ 
    public partial class _Default : Page 
    { 

     protected Boolean insert_details() 
     { 
      var Activity_type = ActivityTypeDropDown.SelectedValue; 
      var Ticket_no = TicketNoTextBox.Text; 
      var tkt_category = TicketCategoryTextBox.Text; 
      var tkt_desc = TicketDescriptionTextBox.Text; 
      var Act_desc = activityDescriptionTextBox.Text; 
      var module = ModuleTextBox.Text; 
      var priority = PriorityDropDown.SelectedValue; 
      var resource = ResourceDropDown.SelectedValue; 
      var creation_date = CreationDateTextBox.Text; 
      var Assigned_date = AssignmentDateTextBox.Text; 
      var status = StatusDropDown.SelectedValue; 
      var completed_date = CompletionDateTextBox.Text; 
      var remarks = RemarksTextBox.Text; 
      var Efforts = EffortsTextBox; 

      string oradb = "Data Source=OracleServerHost;Persist Security Info=True;User ID=scott;password=tiger"; 

      using (OracleConnection conn = new OracleConnection(oradb)) 
      { 
       conn.Open(); 
       OracleCommand id_cmd = new OracleCommand(); 
       id_cmd.Connection=conn; 
       id_cmd.CommandText="select NVL(Max(Activity_Id),0)+1 from Activity_Main_372640"; 
       var id=id_cmd.ExecuteNonQuery(); 
       OracleCommand cmd = new OracleCommand(); 
       cmd.Connection = conn; 
       cmd.CommandText = "Insert into Activity_Main_372640(ACTIVITY_ID,ACTIVITY_TYPE,TICKET_ID,TICKET_CATEGORY,TICKET_DESCRIPTION,ACTIVITY_DESCRIPTION,MODULE,PRIORITY,RESOURCE_NAME,CREATION_DATE,ASSIGNMENT_DATE,COMPLITION_DATE,STATUS,REMARKS,EFFORTS) VALUES(@Parameter1,@Parameter2,@Parameter3,@Parameter4,@Parameter5,@Parameter6,@Parameter7,@Parameter8,@Parameter9,@Parameter10,@Parameter11,@Parameter12,@Parameter13,@Parameter14,@Parameter15)"; 
       cmd.Parameters.Add(new OracleParameter("@Parameter1",id)); 
       cmd.Parameters.Add(new OracleParameter("@Parameter2", Activity_type)); 
       cmd.Parameters.Add(new OracleParameter("@Parameter3", Ticket_no)); 
       cmd.Parameters.Add(new OracleParameter("@Parameter4", tkt_category)); 
       cmd.Parameters.Add(new OracleParameter("@Parameter5", tkt_desc)); 
       cmd.Parameters.Add(new OracleParameter("@Parameter6", Act_desc)); 
       cmd.Parameters.Add(new OracleParameter("@Parameter7", module)); 
       cmd.Parameters.Add(new OracleParameter("@Parameter8", priority)); 
       cmd.Parameters.Add(new OracleParameter("@Parameter9", resource)); 
       cmd.Parameters.Add(new OracleParameter("@Parameter10", creation_date)); 
       cmd.Parameters.Add(new OracleParameter("@Parameter11", Assigned_date)); 
       cmd.Parameters.Add(new OracleParameter("@Parameter12", completed_date)); 
       cmd.Parameters.Add(new OracleParameter("@Parameter13", status)); 
       cmd.Parameters.Add(new OracleParameter("@Parameter14", remarks)); 
       cmd.Parameters.Add(new OracleParameter("@Parameter15", Efforts)); 
       var rowsUpdated = cmd.ExecuteNonQuery(); 
       if (rowsUpdated > 0) 
       { 
        return true; 
       } 
       else 
       { 
        return false; 
       } 
      } 

     } 
     protected void Page_Load(object sender, EventArgs e) 
     { 

     } 
     protected void ActivityTypeDropDown_SelectedIndexChanged(object sender, EventArgs e) 
     { 
      if (ActivityTypeDropDown.SelectedValue == "Ticket") 
      { 
       TktnoLable.Visible = true; 
       TicketNoTextBox.Visible = true; 
      } 
      else 
      { 
       TktnoLable.Visible = false; 
       TicketNoTextBox.Visible = false; 
      } 
     } 

     protected void ResetButton_Click(object sender, EventArgs e) 
     { 
      ClearInputs(Page.Controls); 
     } 
     void ClearInputs(ControlCollection ctrls) 
     { 
      foreach (Control ctrl in ctrls) 
      { 
       if (ctrl is TextBox) 
        ((TextBox)ctrl).Text = string.Empty; 
       ClearInputs(ctrl.Controls); 
      } 
     } 

     protected void StatusDropDown_SelectedIndexChanged(object sender, EventArgs e) 
     { 
      if (StatusDropDown.SelectedValue == "Completed") 
      { 
       CompletionDateLable.Visible = true; 
       CompletionDateTextBox.Visible = true; 
      } 
      else 
      { 
       CompletionDateLable.Visible = false; 
       CompletionDateTextBox.Visible = false; 
      } 
     } 

     protected void Button1_Click(object sender, EventArgs e) 
     { 
      insert_details(); 
     } 
    } 
} 

Answer 1

對於Oracle，綁定變量會在查詢一個colon (:)將開始，同時設置它，你可以直接提到沒有冒號的綁定變量名。

  cmd.CommandText = "Insert into Activity_Main_372640(ACTIVITY_ID,ACTIVITY_TYPE,TICKET_ID,TICKET_CATEGORY,TICKET_DESCRIPTION,ACTIVITY_DESCRIPTION,MODULE,PRIORITY,RESOURCE_NAME,CREATION_DATE,ASSIGNMENT_DATE,COMPLITION_DATE,STATUS,REMARKS,EFFORTS) VALUES(:Parameter1,:Parameter2,:Parameter3,:Parameter4,:Parameter5,:Parameter6,:Parameter7,:Parameter8,:Parameter9,:Parameter10,:Parameter11,:Parameter12,:Parameter13,:Parameter14,:Parameter15)"; 
      cmd.Parameters.Add(new OracleParameter("Parameter1",id)); 
      cmd.Parameters.Add(new OracleParameter("Parameter2", Activity_type)); 
      cmd.Parameters.Add(new OracleParameter("Parameter3", Ticket_no)); 
      cmd.Parameters.Add(new OracleParameter("Parameter4", tkt_category)); 
      cmd.Parameters.Add(new OracleParameter("Parameter5", tkt_desc)); 
      cmd.Parameters.Add(new OracleParameter("Parameter6", Act_desc)); 
      cmd.Parameters.Add(new OracleParameter("Parameter7", module)); 
      cmd.Parameters.Add(new OracleParameter("Parameter8", priority)); 
      cmd.Parameters.Add(new OracleParameter("Parameter9", resource)); 
      cmd.Parameters.Add(new OracleParameter("Parameter10", creation_date)); 
      cmd.Parameters.Add(new OracleParameter("Parameter11", Assigned_date)); 
      cmd.Parameters.Add(new OracleParameter("Parameter12", completed_date)); 
      cmd.Parameters.Add(new OracleParameter("Parameter13", status)); 
      cmd.Parameters.Add(new OracleParameter("Parameter14", remarks)); 
      cmd.Parameters.Add(new OracleParameter("Parameter15", Efforts)); 
      var rowsUpdated = cmd.ExecuteNonQuery();