Please Help me!!!Thanks !!!

[vandaivn]

i just create one database it's: create table HANGHOA ( MAHANG varchar(9) not null, TENHANG nvarchar(50) not null, DVDOLUONG nvarchar(15) not null, DINHLUONG int not null, DONVI nvarchar(15) not null, MOTA nvarchar(50) null , TONKHO int null , DGBAN int null , CANDUOI int null , constraint PK_HANGHOA primary key (MAHANG) ) When i created datagrid and add TENHANG to col1 : private void CreateDataGridStyle() { this.dataGrid1.ReadOnly=true; DGStyle = new DataGridTableStyle(); DGStyle.MappingName ="HANGHOA"; col1 = new DataGridTextBoxColumn(); col1.MappingName ="TENHANG"; col1.HeaderText = "TH"; col1.Width = 90; } but now i want to create table TH with three MappingName : "HANGHOA";"DVDOLUONG";"DINHLUONG" to one. Because when i create datagrid it's have 3 column but now i want to view it's one. private void CreateDataGridStyle() { this.dataGrid1.ReadOnly=true; DGStyle = new DataGridTableStyle(); DGStyle.MappingName ="HANGHOA"+"DINHLUONG"+"DVDOLUONG"; col1 = new DataGridTextBoxColumn(); col1.MappingName ="TENHANG"; col1.HeaderText = "TH"; col1.Width = 90; } ex: table first is HANGHOA DVDOLUONG DINHLUONG abc 1 st but end is "TableMapping" abc is 1st i said may be you can't understand but may be my "ex:" be you see the problem! Thanks !!!Please Help me!

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3. Keep the subject line brief, but descriptive. eg "File Serialization problem" Please Help me!!!Thanks !!! may be brief but hardly descriptive.

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only two letters away from being an asset

[Guffa]

Your line: DGStyle.MappingName ="HANGHOA"+"DINHLUONG"+"DVDOLUONG"; is equivalent to: DGStyle.MappingName ="HANGHOADINHLUONGDVDOLUONG"; As there is no field by that name, it won't work. You have to concatenate the values when you query the data from the database, not when you specify your data grid.

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