private void frmLog_Load(object sender, System.EventArgs e)
{
  //設置DataGrid的列寬
  InitDataGridColumnHeader();
  //GetResult();
}
private void InitDataGridColumnHeader()
{
  DataGridTableStyle dts=new DataGridTableStyle(); 
  //注意：必須加上這一句，否則自定義列格式無法使用
  dts.MappingName="Table"; 
  hrgLog.TableStyles.Add(dts);
  hrgLog.TableStyles[0].GridColumnStyles.Clear();
  //========================設置表頭欄位===========================
  DataGridTableStyle dtsLog = new DataGridTableStyle();
  DataGridTextBoxColumn colID = new DataGridTextBoxColumn();
  colID.Width=80; 
  colID.HeaderText = "記錄序號";
  colID.MappingName = "ID";
  hrgLog.TableStyles[0].GridColumnStyles.Add(colID); 
  DataGridTextBoxColumn colLog = new DataGridTextBoxColumn();
  colLog.Width=200; 
  colLog.HeaderText = "日志內(nèi)容";
  colLog.MappingName = "LogMessage";
  hrgLog.TableStyles[0].GridColumnStyles.Add(colLog); 
  DataGridTextBoxColumn colTime = new DataGridTextBoxColumn();
  colTime.Width=100; 
  colTime.HeaderText = "記錄時間";
  colTime.MappingName = "LogTime";
  hrgLog.TableStyles[0].GridColumnStyles.Add(colTime);  
  DataGridTextBoxColumn colCatalog = new DataGridTextBoxColumn();
  colCatalog.Width=100; 
  colCatalog.HeaderText = "日志類別";
  colCatalog.MappingName = "LogCatalog"; 
  hrgLog.TableStyles[0].GridColumnStyles.Add(colCatalog);   
}