在Datagridview的一行中显示多条记录

我用来显示库存表的代码如下所示。在Datagridview的一行中显示多条记录

con = conn.getConnected(); 
datadap.SelectCommand = new SqlCommand("SELECT Inventory.inv_ID AS ID, ItemType.it_type AS Type, Inventory.inv_qty AS [Qty],Inventory.inv_part_no AS [Part No], CONVERT(DECIMAL(10,2),Inventory.inv_whole_price) AS [Discount Price], CONVERT(DECIMAL(10,2),Inventory.inv_retail_price) AS [Selling Price], Inventory.inv_profit_percent AS [Percent] FROM Inventory INNER JOIN Country ON Inventory.count_ID = Country.count_ID INNER JOIN Class ON Inventory.class_ID = Class.class_ID INNER JOIN Dealer ON Inventory.deal_ID = Dealer.deal_ID INNER JOIN ItemType ON Inventory.it_ID = ItemType.it_ID", con); 
dataset.Clear(); 
datadap.Fill(dataset); 
dgInventory.DataSource = dataset.Tables[0];

结果设定为 “库存” 是

Inv_ID Type   Qty Code Cost Sell Percent 
3  Spockets Rear 1 1000 100.00 150.00 33.33 
4  Seat Cover  1 1000 10.00 12.00 16.67 
5  Brake Cable  1 5000 20.00 24.00 2  
6  Seat Cover  1 4400 400.00 411.00 1   
8  Spockets Rear 1 1503 1522.00 1252.00 15  
9  Seat Cover  1 1522 152.00 180.00 12  
10  Seat Cover  1 1522 152.00 180.00 12  
11  Seat Cover  1 1522 152.00 180.00 12 
12  Lights   1 5623 123.00 160.00 10  
13  Brake Shoe  1   90.00 100.00 10  
14  Brake Shoe  1   90.00 100.00 10 
15  Sprockets Front 1 100  2000.00 2200.00 9.0  
16  Spockets Rear 3 1001 615.00 800.00 23.125

表InventoryMake表具有库存ID作为外键。 InventoryMake表看起来像

ID Model_ID Inv_ID 
1  2   15 
7  3   15 
8  5   14 
9  4   14

我需要做的是显示相应的MODEL_ID的外键，如下图所示在库存表中的一行Inv_ID。

Inv_ID Type   Model_ID Qty Code Cost Sell Percent 
3  Spockets Rear    1 1000 100.00 150.00 33.33 
4  Seat Cover     1 1000 10.00  12.00 16.67 
5  Brake Cable    1 5000 20.00  24.00 2  
6  Seat Cover     1 4400 400.00 411.00 1   
8  Spockets Rear    1 1503 1522.00 1252.00 15  
9  Seat Cover     1 1522 152.00 180.00 12  
10  Seat Cover     1 1522 152.00 180.00 12  
11  Seat Cover     1 1522 152.00 180.00 12 
12  Lights      1 5623 123.00 160.00 10  
13  Brake Shoe     1   90.00  100.00 10  
14  Brake Shoe  5,4  1   90.00  100.00 10 
15  Sprockets Front 2,3  1 100 2000.00 2200.00 9.0  
16  Sprockets Rear    3 1001 615.00 800.00 23.125

我需要你的帮助来弄清楚如何在一行中显示多条记录，如上表所示。谢谢。 PS：我正在使用C＃和MSSQL 2008

来源

2014-02-08 don

如果数据存储在数据库中，则可以将其作为查询的一部分进行检索。选择Model_ID作为逗号分隔的字符串。

SELECT GROUP_CONCAT(Model_ID) 
FROM InventoryMake as IM,Inventory as I 
WHERE I.Inv_ID = IM.Inv_ID 
GROUP BY I.Inv_ID

来源

2014-02-08 11:36:29 HansP

是的数据存储在数据库中。我想知道如何？ – don

我想你误解了这个问题。我需要将InventoryMake表中的多条记录放在Inventory Table的匹配Inv_ID列的一行中。 – don

我明白了。您可能可以在mySQL中使用GROUP_CONCAT函数。像这样 SELECT GROUP_CONCAT（Model_ID）FROM InventoryMake as IM，Inventory as I I.Inv_ID = IM.Inv_ID group by I.Inv_ID; – HansP

在Datagridview的一行中显示多条记录

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