Question

当我尝试通过单击“保存”按钮将数据从Web Form-Registration上传到SQL Server时，它会引发异常。加载表格没有任何问题。

我在ASP.net Web表单中创建了一个注册，并将其上传到SQL Server。表单加载正确。

Table Schema - 
CREATE TABLE [dbo].[EmployeeDetails] (
    [EmployeeId]   INT             NOT NULL,
    [FirstName]    CHAR (20)       NOT NULL,
    [LastName]     CHAR (20)       NOT NULL,
    [Dob]          DATE            NULL,
    [Gender]       CHAR (10)       NOT NULL,
    [AddLine1]     CHAR (50)       NOT NULL,
    [AddLine2]     CHAR (50)       NOT NULL,
    [City]         CHAR (20)       NOT NULL,
    [State]        CHAR (20)       NOT NULL,
    [Postal]       NUMERIC (6)     NOT NULL,
    [Country]      CHAR (20)       NOT NULL,
    [Mobile]       NUMERIC (10)    NOT NULL,
    [JobType]      CHAR (15)       NOT NULL,
    [Doj]          DATE            NOT NULL,
    [GImage]       VARBINARY (MAX) NULL,
    [GaurdianType] CHAR (10)       NOT NULL,
    [GName]        CHAR (30)       NOT NULL,
    PRIMARY KEY CLUSTERED ([EmployeeId] ASC)
);

在单击“保存”后输入详细信息后，它将引发异常

“ System.Data.SqlClient.SqlException：'必须声明标量变量 “ @EmployeeId”。'“位于insertCommand.ExecuteNonQuery（）;

namespace stagingVAM
 {
    public partial class Employees : System.Web.UI.Page
     {
               SqlConnection con = new SqlConnection (ConfigurationManager.ConnectionStrings["conStringDB"].ConnectionString);
                Random rnd = new Random();
                public int value = 0;    
                public string EmployeeId { get; private set; }
                public string FirstName { get; private set; }
                public string LastName { get; private set; }
                public string Dob { get; private set; }

   public Employees()
   {
              value = rnd.Next(100000, 999999);
    }

                          protected void Page_Load(object sender, EventArgs e)
                           {
                                    TextBox13.Text = (value).ToString();
                            }

     protected void Button1_Click(object sender, EventArgs e)
     {
             con.Open();

             SqlCommand insertCommand = new SqlCommand("Insert into[dbo].[EmployeeDetails] Values(@EmployeeId, @FirstName, @LastName, @Dob, @Gender, @AddLine1, @AddLine2, @City, @State, @Postal, @Country, @Mobile, @JobType, @Doj, @GImage, @GaurdianType, @GName)", con);

              insertCommand.Parameters.AddWithValue(@EmployeeId, TextBox13.Text);
        insertCommand.Parameters.AddWithValue(@FirstName, TextBox1.Text);
        insertCommand.Parameters.AddWithValue(@LastName, TextBox2.Text);
        insertCommand.Parameters.AddWithValue(@Dob, TextBox3.Text);
        insertCommand.Parameters.AddWithValue(@Gender, RadioButtonList1.SelectedValue);
        insertCommand.Parameters.AddWithValue(@AddLine1, TextBox4.Text);
        insertCommand.Parameters.AddWithValue(@AddLine2, TextBox5.Text);
        insertCommand.Parameters.AddWithValue(@City, TextBox6.Text);
        insertCommand.Parameters.AddWithValue(@State, TextBox7.Text);
        insertCommand.Parameters.AddWithValue(@Postal, TextBox8.Text);
        insertCommand.Parameters.AddWithValue(@Country, DropDownList1.SelectedItem.Value);
        insertCommand.Parameters.AddWithValue(@Mobile, TextBox9.Text);
        insertCommand.Parameters.AddWithValue(@JobType, DropDownList2.SelectedItem.Value);
        insertCommand.Parameters.AddWithValue(@Doj, TextBox10.Text);
        insertCommand.Parameters.AddWithValue(@GImage, TextBox12.Text);
        insertCommand.Parameters.AddWithValue(@GaurdianType, DropDownList3.SelectedItem.Value);
        insertCommand.Parameters.AddWithValue(@GName, TextBox11.Text);
        insertCommand.ExecuteNonQuery();
        con.Close();

        TextBox1.Text = "";
        TextBox2.Text = "";
        TextBox3.Text = "";
        TextBox4.Text = "";
        TextBox5.Text = "";
        TextBox6.Text = "";
        TextBox7.Text = "";
        TextBox8.Text = "";
        TextBox9.Text = "";
        TextBox10.Text = "";
        TextBox11.Text = "";
        TextBox12.Text = "";
        RadioButtonList1.SelectedValue = "";
        DropDownList1.SelectedItem.Value = "";
        DropDownList2.SelectedItem.Value = "";
        DropDownList3.SelectedItem.Value = "";
      }
         }
    }

如何解决此问题。异常指向该行insertCommand.ExecuteNonQuery（）;

Answer 1

我用它来解决暂时问题及其工作

SqlCommand cmdnew = new SqlCommand(@"Insert into [dbo].[EmployeeDetails]
             (EmployeeId, FirstName, LastName, Dob, Gender, AddLine1, AddLine2, City, State, Postal, Country, Mobile, JobType, Doj, GaurdianType, GName)
             Values ('" + TextBox13.Text + "', '" + TextBox1.Text + "', '" + TextBox2.Text + "', '" + TextBox3.Text + "', '" + RadioButtonList1.SelectedValue + "', '" + TextBox4.Text + "', '" + TextBox5.Text + "', '" + TextBox6.Text + "', '" + TextBox7.Text + "', '" + TextBox8.Text + "', '" + DropDownList1.SelectedItem.Value + "', '" + TextBox9.Text + "', '" + DropDownList2.SelectedItem.Value + "', '" + TextBox10.Text + "', '" + TextBox11.Text + "', '" + DropDownList1.SelectedItem.Value + "')", con);
            con.Open();
            cmdnew.ExecuteNonQuery();
            con.Close();

得到错误System.Data.SqlClient.SqlException：'必须声明标量变量“ @EmployeeId”。

1 个答案: