C++builder DBGrid双击获取记录问题

Question

无论我双击001还是其他记录，该ADODataSet1->FieldByName("员工号")->AsString显示的就是001的值，不曾改变。代码如下
AnsiString Path;
AnsiString sqlstr = "Select 头像 from Photo where 员工号='"+ADODataSet1->FieldByName("员工号")->AsString+"'";
ADOQuery1->Close();
ADOQuery1->SQL->Clear();
ADOQuery1->SQL->Add(sqlstr);
ADOQuery1->Open();
Path = ADOQuery1->FieldByName("头像")->AsString;
Image1->Picture->LoadFromFile(Path);

Answer 1

这个要看你的代码是写在什么地方的了，试试下面的：

void __fastcall TForm1::DBGrid1DblClick(TObject Sender)//双击
{
if(((TDBGrid)Sender)->DataSource->DataSet->Active==false || ((TDBGrid*)Sender)->DataSource->DataSet->RecordCount<=0)return;

AnsiString Path;
AnsiString sqlstr = "Select 头像 from Photo where 员工号='"+((TDBGrid*)Sender)->DataSource->DataSet->FieldByName("员工号")->AsString+"'";
ADOQuery1->Close();
ADOQuery1->SQL->Clear();
ADOQuery1->SQL->Add(sqlstr);
ADOQuery1->Open();
Path = ADOQuery1->FieldByName("头像")->AsString;
Image1->Picture->LoadFromFile(Path);

}

还有一点，你的员工号是文本类型的还是数字类型的，数字类型的话不要加''