更改数据源后,我必须在创建它当一个表单,我们这个查询的DataGridView是空的,在运行时
public IQueryable<PatientInfo> showMyPatients()
{
DbClassesDataContext myDb = new DbClassesDataContext(dbPath);
var patientInfo = from patients in myDb.PatientInfos
where patients.Phy_ID == physcianID
select patients;
return patientInfo;
}
一旦我打电话,我将它插入到一个变量,并把它作为这里PARAMATERS
public void fillDataGrid(IQueryable<PatientInfo> patients)
{
dgvMyPatients.DataSource = patients;
}
听起来很简单吧?但是当我运行此查询
private IQueryable<PatientInfo> searchPatient()
{
DbClassesDataContext myDb = new DbClassesDataContext(dbPath);
var search = from myPatients in myDb.PatientInfos
where (myPatients.Pat_ID == patient_ID && myPatients.Pat_First_Name.Contains(txtSearch.Text)) ||
(myPatients.Pat_ID == patient_ID && myPatients.Pat_Last_Name.Contains(txtSearch.Text)) ||
(myPatients.Pat_ID == patient_ID && myPatients.Pat_Middle_Name.Contains(txtSearch.Text))
select myPatients;
return search;
}
,并作为参数传递给fillDataGrid()
DataGrid中都会有一个空值,即使没有来自该查询
BindingSource bs = new BindingSource();
bs.DataSource = searchPatient();
dgvMyPatients.DataSource = bs;
注意结果:两者的查询返回PATIENTINFO,我会在同一个DataGrid中被插入
我找到了答案为自己的数据源时,是合法的回答我的问题吗? – KyelJmD 2012-04-01 10:15:33
当然[答案 - 你自己的问题](http://blog.stackoverflow.com/2011/07/its-ok-to-ask-and-answer-your-own-questions/) – Steve 2012-04-01 11:32:40