C# 在插入时返回@标识以用作变量
我有一个功能,我想执行C# 在插入时返回@标识以用作变量,c#,sql,sql-server,scope-identity,C#,Sql,Sql Server,Scope Identity,我有一个功能,我想执行插入或更新,这取决于导入的.csv文件中找到的档案id是设置为当前id还是新id(如果是新的,则在文件的档案id列中将其标记为“新建”、“新建1”、“新建2”等). 不幸的是,在保存过程中,调用的一些函数需要使用ProfileID。但是,如果正在执行插入,则调用这些函数时,ProfileID是未知的 我已经设置了INSERT查询,以便在使用SCOPE\u IDENTITY()插入新行后返回ProfileID,但我不确定如何获取此结果并将其放入变量中。有办法做到这一点吗 这
插入
或更新
,这取决于导入的.csv
文件中找到的档案id是设置为当前id还是新id(如果是新的,则在文件的档案id
列中将其标记为“新建”、“新建1”、“新建2”等).
不幸的是,在保存过程中,调用的一些函数需要使用ProfileID
。但是,如果正在执行插入
,则调用这些函数时,ProfileID
是未知的
我已经设置了INSERT
查询,以便在使用SCOPE\u IDENTITY()
插入新行后返回ProfileID
,但我不确定如何获取此结果并将其放入变量中。有办法做到这一点吗
这是完整的保存功能代码:
private void SaveProfile(string[] curProfile)
{
string profId = GetValue(curProfile, (int)ProfileColumns.ProfileId).ToLower();
string query ="";
using (SqlConnection cn = new SqlConnection(ConfigurationManager.ConnectionStrings["AbleCommerce"].ToString()))
{
try
{
if (profId.Contains("new"))
{
string insertQuery = "INSERT INTO ProductProfile (Name, Description, SpeciesLink, LineDraw, LineDrawThumbnail, ProfileThumbnail, ComponentThickness, ComponentWidth, FinishedThickness, FinishedWidth, ClassificationID, StockOrCust, ComponentFactor, Visibility, Notes, OrderBy) VALUES (@Name, @Description, @SpeciesLink, @LineDraw, @LineDrawThumbnail, @ProfileThumbnail, @ComponentThickness, @ComponentWidth, @FinishedThickness, @FinishedWidth, @ClassificationID, @StockOrCust, @ComponentFactor, @Visibility, @Notes, @OrderBy) SELECT SCOPE_IDENTITY()";
Response.Write("PERFORM INSERT<br />");
query = insertQuery;
}
{
string updateQuery = "UPDATE ProductProfile SET Name = @Name, Description = @Description, SpeciesLink = @SpeciesLink, LineDraw = @LineDraw, LineDrawThumbnail = @LineDrawThumbnail, ProfileThumbnail = @ProfileThumbnail, ComponentThickness = @ComponentThickness, ComponentWidth = @ComponentWidth, FinishedThickness = @FinishedThickness, FinishedWidth = @FinishedWidth, ClassificationID = @ClassificationID, StockOrCust = @StockOrCust, ComponentFactor = @ComponentFactor, Visibility = @Visibility, Notes = @Notes, OrderBy = @OrderBy WHERE ProfileID = @profid";
Response.Write("PERFORM UPDATE<br />");
query = updateQuery;
}
SqlCommand cmd = new SqlCommand(query, cn);
cmd.CommandType = CommandType.Text;
cn.Open();
cmd.Parameters.AddWithValue("@profid", GetValue(curProfile, (int)ProfileColumns.ProfileId).Trim());
cmd.Parameters.AddWithValue("@Name", GetValue(curProfile, (int)ProfileColumns.Name).Trim());
cmd.Parameters.AddWithValue("@Description", GetValue(curProfile, (int)ProfileColumns.Description).Trim());
cmd.Parameters.AddWithValue("@SpeciesLink", GetValue(curProfile, (int)ProfileColumns.SpeciesLink).Trim());
cmd.Parameters.AddWithValue("@Linedraw", GetValue(curProfile, (int)ProfileColumns.LineDraw).Trim());
cmd.Parameters.AddWithValue("@LineDrawThumbnail", GetValue(curProfile, (int)ProfileColumns.LineDrawThumbnail).Trim());
cmd.Parameters.AddWithValue("@ProfileThumbnail", GetValue(curProfile, (int)ProfileColumns.ProfileThumbnail).Trim());
cmd.Parameters.AddWithValue("@ComponentThickness", GetValue(curProfile, (int)ProfileColumns.ComponentThickness).Trim());
cmd.Parameters.AddWithValue("@ComponentWidth", GetValue(curProfile, (int)ProfileColumns.ComponentWidth).Trim());
cmd.Parameters.AddWithValue("@FinishedThickness", GetValue(curProfile, (int)ProfileColumns.FinishedThickness).Trim());
cmd.Parameters.AddWithValue("@FinishedWidth", GetValue(curProfile, (int)ProfileColumns.FinishedWidth).Trim());
cmd.Parameters.AddWithValue("@ClassificationID", GetValue(curProfile, (int)ProfileColumns.ClassificationID).Trim());
string stockCust = GetValue(curProfile, (int)ProfileColumns.StockOrCust).ToLower();
switch (stockCust)
{
case "stock":
stockCust = "0";
break;
case "custom":
stockCust = "1";
break;
case "discontinued":
stockCust = "2";
break;
}
cmd.Parameters.AddWithValue("@StockOrCust", Convert.ToInt32(stockCust));
cmd.Parameters.AddWithValue("@ComponentFactor", GetValue(curProfile, (int)ProfileColumns.ComponentFactor).Trim());
string Visibility = GetValue(curProfile, (int)ProfileColumns.Visibility).ToLower();
switch (Visibility)
{
case "public":
Visibility = "0";
break;
case "private":
Visibility = "1";
break;
}
cmd.Parameters.AddWithValue("@Visibility", Convert.ToInt32(Visibility));
cmd.Parameters.AddWithValue("@Notes", GetValue(curProfile, (int)ProfileColumns.Notes).Trim());
cmd.Parameters.AddWithValue("@OrderBy", GetValue(curProfile, (int)ProfileColumns.OrderBy).Trim());
cmd.ExecuteNonQuery();
cn.Close();
// this is the portion of the function that makes the call to other functions to complete the save process
int profileID = Convert.ToInt32(GetValue(curProfile, (int)ProfileColumns.ProfileId));
SaveArtchStyle(profileID, curProfile);
SaveAssignedItems(profileID, curProfile);
//update dimensions
//UpdateProductDimensions(profileID, GetValue(curProfile, (int)ProfileColumns.FinishedThickness).Trim(), GetValue(curProfile, (int)ProfileColumns.FinishedWidth).Trim());
}
catch (Exception ex)
{
ErrorLabel.Text = "There was an error with the file." + ex.ToString();
}
}
}
private void SaveProfile(字符串[]curProfile)
{
字符串profId=GetValue(curProfile,(int)ProfileColumns.ProfileId.ToLower();
字符串查询=”;
使用(SqlConnection cn=new SqlConnection(ConfigurationManager.ConnectionString[“AbleCommerce”].ToString())
{
尝试
{
如果(利润包含(“新”))
{
string insertQuery=“插入到ProductProfile(名称、说明、规格链接、LineDraw、LineDrawThumbnail、ProfileThumbnail、组件厚度、组件宽度、成品厚度、成品宽度、分类ID、库存或库存、组件因子、可见性、注释、订单依据)值中(@Name、@Description、@SpeciesLink、@LineDraw、@LineDraw缩略图、@profile缩略图、@ComponentThickness、@ComponentWidth、@FinishedThickness、@FinishedWidth、@ClassificationID、@StockOrCust、@ComponentFactor、@Visibility、@Notes、@OrderBy)选择SCOPE_IDENTITY();
响应。写入(“执行插入
”);
query=insertQuery;
}
{
字符串更新项="更新产品配置文件集名称=@Name,Description=@Description,SpeciesLink=@SpeciesLink,LineDraw=@LineDraw,LineDrawThumbnail=@LineDrawThumbnail,ProfileThumbnail=@ProfileThumbnail,ComponentThickness=@ComponentWidth,FinishedThickness=@FinishedThickness,FinishedWidth=@FinishedWidth,ClassificationID=@ClassificationID,StockorCast=@StockorCast,ComponentFactor=@ComponentFactor,Visibility=@Visibility,Notes=@Notes,OrderBy=@OrderBy,其中ProfileID=@profid”;
响应。写入(“执行更新
”;
query=updateQuery;
}
SqlCommand cmd=新的SqlCommand(查询,cn);
cmd.CommandType=CommandType.Text;
cn.Open();
cmd.Parameters.AddWithValue(“@profid”,GetValue(curProfile,(int)ProfileColumns.ProfileId.Trim());
cmd.Parameters.AddWithValue(“@Name”,GetValue(curProfile,(int)ProfileColumns.Name.Trim());
cmd.Parameters.AddWithValue(“@Description”,GetValue(curProfile,(int)ProfileColumns.Description.Trim());
cmd.Parameters.AddWithValue(“@SpeciesLink”,GetValue(curProfile,(int)ProfileColumns.SpeciesLink.Trim());
cmd.Parameters.AddWithValue(“@Linedraw”,GetValue(curProfile,(int)ProfileColumns.Linedraw.Trim());
cmd.Parameters.AddWithValue(“@LineDrawThumbnail”,GetValue(curProfile,(int)ProfileColumns.LineDrawThumbnail.Trim());
cmd.Parameters.AddWithValue(“@ProfileThumbnail”,GetValue(curProfile,(int)ProfileColumns.ProfileThumbnail.Trim());
cmd.Parameters.AddWithValue(“@ComponentThickness”,GetValue(curProfile,(int)ProfileColumns.ComponentThickness.Trim());
cmd.Parameters.AddWithValue(“@ComponentWidth”,GetValue(curProfile,(int)ProfileColumns.ComponentWidth.Trim());
cmd.Parameters.AddWithValue(“@FinishedThickness”,GetValue(curProfile,(int)ProfileColumns.FinishedThickness.Trim());
cmd.Parameters.AddWithValue(“@FinishedWidth”,GetValue(curProfile,(int)ProfileColumns.FinishedWidth.Trim());
cmd.Parameters.AddWithValue(“@ClassificationID”,GetValue(curProfile,(int)ProfileColumns.ClassificationID.Trim());
字符串stockCust=GetValue(curProfile,(int)ProfileColumns.StockOrCust.ToLower();
交换机(stockCust)
{
案例“股票”:
stockCust=“0”;
打破
案例“海关”:
stockCust=“1”;
打破
“中止”案:
stockCust=“2”;
打破
}
cmd.Parameters.AddWithValue(“@StockOrCust”,Convert.ToInt32(stockCust));
cmd.Parameters.AddWithValue(“@ComponentFactor”,GetValue(curProfile,(int)ProfileColumns.ComponentFactor.Trim());
string Visibility=GetValue(curProfile,(int)ProfileColumns.Visibility.ToLower();
开关(可见性)
{
“公众”案:
可见性=“0”;
打破
“私人”案件:
可见性=“1”;
打破
}
cmd.Parameters.AddWithValue(“@Visibility”,Convert.ToInt32(Visibility));
cmd.Parameters.AddWithValue(“@Notes”,GetValue(curProfile,(int)ProfileColumns.Notes.Trim());
cmd.Parameters.AddWithValue(“@OrderBy”,GetValue(curProfile,(int)ProfileColumns.OrderBy.Trim());
cmd.ExecuteNonQuery();
cn.Close();
//这是函数中调用其他函数以完成保存过程的部分
int profileID=Convert.ToInt32(GetValue(curProfile,(int)ProfileColumns.profileID));
SaveArtchStyle(profileID,curProfile);
SaveAssignedItems(profileID,curProfile);
//更新
cmd.Parameters.Add("@ID", SqlDbType.Int, 4).Direction = ParameterDirection.Output;
cmd.ExecuteNonQuery();
//Now just read the value of: cmd.Parameters["@ID"].value
var insertValue = cmd.Parameters["@ID"].value
SET @ID = SCOPE_IDENTITY();
Int32 newProdID = 0;
string sql =
"INSERT INTO Production.ProductCategory (Name) VALUES (@Name); "
+ "SELECT CAST(scope_identity() AS int)";
using (SqlConnection conn = new SqlConnection(connString))
{
SqlCommand cmd = new SqlCommand(sql, conn);
cmd.Parameters.Add("@Name", SqlDbType.VarChar);
cmd.Parameters["@name"].Value = newName;
try
{
conn.Open();
newProdID = (Int32)cmd.ExecuteScalar();
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
}