System.Data.SqlClient.SqlException”已發生

Question

我正在嘗試將圖像存儲在ASP.NET Web窗體網站上的“圖像”文件夾中。

這是我的提交按鈕后面的代碼：

 protected void btnSubmit_Click(object sender, EventArgs e)
{
    //Get Filename from fileupload control
    string filename = Path.GetFileName(fileuploadimages.PostedFile.FileName);
    //Save images into Images folder
    fileuploadimages.SaveAs(Server.MapPath("Images/" + filename));
    //Getting dbconnection from web.config connectionstring
    SqlConnection con = new SqlConnection(ConfigurationManager.ConnectionStrings["BallinoraDBConnectionString1"].ToString());
    //Open the database connection
    con.Open();
    //Query to insert images path and name into database
    SqlCommand cmd = new SqlCommand("Insert into Group_Images(ImageName,ImagePath) values(@ImageName,@ImagePath)", con);
    //Passing parameters to query
    cmd.Parameters.AddWithValue("@ImageName", filename);
    cmd.Parameters.AddWithValue("@ImagePath", "Images/" + filename);
    cmd.ExecuteNonQuery();
    //Close dbconnection
    con.Close();
    Response.Redirect("~/Admin.aspx");
}

SQL Server表結構

這是我收到的錯誤消息

Answer 1

您必須更新數據庫中的列ID ，將其設置為Identity Increment