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- String^ constring=L"datasource=localhost;port=3306;username=root;password=Bbaco2013";
- MySqlConnection^ conDataBase= gcnew MySqlConnection(constring);
- MySqlCommand^ cmdDataBase=gcnew MySqlCommand("select * from biblioteca.login where = usuario'"+this->username_txt->Text+"' and contraseña='"+this->password_txt->Text+"';",conDataBase);
- MySqlDataReader^myReader;
- try{
- conDataBase->Open();
- conDataBase->Open();
- cmdDataBase->Parameters->AddWithValue("Raul", username_txt->Text);
- cmdDataBase->Parameters->AddWithValue("root", password_txt->Text);
- myReader=cmdDataBase->ExecuteReader();
- int count=0;
- while(myReader->Read()){
- count=count+1;
- }
- if(count==1){
- MessageBox::Show("Usuario y contraseña correctos");
- }
- else if(count>1){
- MessageBox::Show("Usuario y contraseña Duplicados");
- }
- else
- MessageBox::Show("Usuario y contraseña incorrectos");
- }catch(Exception^ex){
- MessageBox::Show(ex->Message);
- }
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