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我正面臨這個問題,我不知道背後的原因。下面是錯誤的Visual Studio是報告:爲什麼我從此代碼中獲取CS1502(無效參數)錯誤?
我使用「PostForum.INSERTforum(整型,字符串,字符串的System.DateTime)」的最佳重載的方法匹配具有一些無效參數Oracle存儲我的數據並創建了一個名爲INSERTFORUM的過程。我不確定是否存在存儲過程或其他問題。請幫我解決這個問題。
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
public partial class Forum : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
protected void Button1_Click(object sender, EventArgs e)
{
string course_Id = DropDownList1.Text;
int ccourse_Id = Convert.ToInt32(course_Id);
string question = TextBox1.Text;
string posterName = TextBox2.Text;
DateTime blog_date = DateTime.Now;
PostForum.INSERTforum(course_Id, question, posterName, blog_date);
}
}
代碼:Postforum.cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
using System.Data.SqlClient;
public class PostForum
{
public static int INSERTforum(int course_Id, string question, string posterName, DateTime blog_date)
{
int rowsAffected = 0;
using (SqlConnection connection = ConnectionManager.GetDatabaseConnection())
{
SqlCommand command = new SqlCommand("INSERTforum", connection);
command.CommandType = CommandType.StoredProcedure;
command.Parameters.Add("@course_Id", SqlDbType.Int).Value = course_Id;
command.Parameters.Add("@question", SqlDbType.VarChar).Value = question;
command.Parameters.Add("@posterName", SqlDbType.VarChar).Value = posterName;
command.Parameters.Add("@blog_date", SqlDbType.DateTime).Value = blog_date;
rowsAffected = command.ExecuteNonQuery();
}
return rowsAffected;
}
}