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Я новичок в C#. Просто следуйте простым примерам из уроков Кудвенката. http://csharp-video-tutorials.blogspot.com/2012/10/calling-stored-procedure-with-output.htmlWebForm1 не содержит определения для «Контекст»
Продолжайте получать эти ошибки и не можете понять, что я делаю неправильно?
Моего .aspx файл:
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="WebForm1.aspx.cs" Inherits="WebForm1"%>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<table style="border: 1px solid black; font-family:Arial">
<tr>
<td>
Employee Name
</td>
<td>
<asp:TextBox ID="txtEmployeeName" runat="server"></asp:TextBox>
</td>
</tr>
<tr>
<td>
Gender
</td>
<td>
<asp:DropDownList ID="ddlGender" runat="server">
<asp:ListItem>Male</asp:ListItem>
<asp:ListItem>Female</asp:ListItem>
</asp:DropDownList>
</td>
</tr>
<tr>
<td>
Salary
</td>
<td>
<asp:TextBox ID="txtSalary" runat="server"></asp:TextBox>
</td>
</tr>
<tr>
<td colspan="2">
<asp:Button ID="btnSubmit" runat="server" Text="Submit" onclick="btnSubmit_Click" />
</td>
</tr>
<tr>
<td colspan="2">
<asp:Label ID="lblMessage" runat="server"></asp:Label>
</td>
</tr>
</table>
</form>
</body>
</html>
В моем aspx.cs файл txtEmployeeName.Text, ddlGender.SelectedValue и 'txtSalary.Text' имеет красное подчеркивание, что говорит "The name .txt does not exist in a current context"
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data.SqlClient;
using System.Configuration;
namespace adoDemo
{
public partial class WebForm1 : System.Web.UI.Page
{
protected void btnSubmit_Click(object sender, EventArgs e)
{
//Read the connection string from Web.Config file
string ConnectionString = ConfigurationManager.ConnectionStrings["DBCS"].ConnectionString;
using (SqlConnection con = new SqlConnection(ConnectionString))
{
//Create the SqlCommand object
SqlCommand cmd = new SqlCommand("spAddEmployee", con);
//Specify that the SqlCommand is a stored procedure
cmd.CommandType = System.Data.CommandType.StoredProcedure;
//Add the input parameters to the command object
cmd.Parameters.AddWithValue("@Name", txtEmployeeName.Text);
cmd.Parameters.AddWithValue("@Gender", ddlGender.SelectedValue);
cmd.Parameters.AddWithValue("@Salary", txtSalary.Text);
//Add the output parameter to the command object
SqlParameter outPutParameter = new SqlParameter();
outPutParameter.ParameterName = "@EmployeeId";
outPutParameter.SqlDbType = System.Data.SqlDbType.Int;
outPutParameter.Direction = System.Data.ParameterDirection.Output;
cmd.Parameters.Add(outPutParameter);
//Open the connection and execute the query
con.Open();
cmd.ExecuteNonQuery();
//Retrieve the value of the output parameter
string EmployeeId = outPutParameter.Value.ToString();
lblMessage.Text = "Employee Id = " + EmployeeId;
}
}
}
}
И мой aspx.designer. cs file:
//------------------------------------------------------------------------------
// <auto-generated>
// This code was generated by a tool.
//
// Changes to this file may cause incorrect behavior and will be lost if
// the code is regenerated.
// </auto-generated>
//------------------------------------------------------------------------------
namespace adoDemo {
public partial class WebForm1 {
/// <summary>
/// form1 control.
/// </summary>
/// <remarks>
/// Auto-generated field.
/// To modify move field declaration from designer file to code-behind file.
/// </remarks>
protected global::System.Web.UI.HtmlControls.HtmlForm form1;
/// <summary>
/// txtEmployeeName control.
/// </summary>
/// <remarks>
/// Auto-generated field.
/// To modify move field declaration from designer file to code-behind file.
/// </remarks>
protected global::System.Web.UI.WebControls.TextBox txtEmployeeName;
/// <summary>
/// ddlGender control.
/// </summary>
/// <remarks>
/// Auto-generated field.
/// To modify move field declaration from designer file to code-behind file.
/// </remarks>
protected global::System.Web.UI.WebControls.DropDownList ddlGender;
/// <summary>
/// txtSalary control.
/// </summary>
/// <remarks>
/// Auto-generated field.
/// To modify move field declaration from designer file to code-behind file.
/// </remarks>
protected global::System.Web.UI.WebControls.TextBox txtSalary;
/// <summary>
/// btnSubmit control.
/// </summary>
/// <remarks>
/// Auto-generated field.
/// To modify move field declaration from designer file to code-behind file.
/// </remarks>
protected global::System.Web.UI.WebControls.Button btnSubmit;
/// <summary>
/// lblMessage control.
/// </summary>
/// <remarks>
/// Auto-generated field.
/// To modify move field declaration from designer file to code-behind file.
/// </remarks>
protected global::System.Web.UI.WebControls.Label lblMessage;
}
}
Проверьте файл дизайнера, чтобы увидеть, если свойства были сгенерированный, если не удалить и воссоздать это текстовое поле – meda
Я добавил файл конструктора. Извините, но как я могу узнать, были ли созданы свойства? – Oleg
На самом деле там, просто воссоздайте его, а затем повторите попытку – meda