1个子表单从多个父表单获取属性

Question

我可以从1个datagridview形式（FrmItemSearch）的2个父对象（即（FrmMasterItem）和（FrmMasterPackage））中获取查询值，并将所选值传递给其父表单我是C＃的新手:)

我已经尝试过从FrmMasterItem获取数据的FrmItemSearch，它可以显示数据，但是我也想从FrmMasterPackage获取数据，所以我只需要1个gridview表单

//this is my MasterItem Form
public partial class FrmMasterItem : Form

      public string myQuery  get; set; 
      public FrmMasterItem()
      
            InitializeComponent();
      
      public void SearchItemCode_Click(object sender, EventArgs e)
      
            this.myQuery = "select * from InItemMst";

            FrmItemSearch fcd = new FrmItemSearch(this);
            fcd.ShowDialog();
      


 //this is my MasterPackage Form
  public partial class FrmMasterPackage : Form 
  
      public string sQuery  get; set; 
      public FrmMasterPackage()
      
           InitializeComponent();
      
      public void SearchItemCode_Click(object sender, EventArgs e)
      
            this.sQuery = "select * from InPackagehdr";
            //i want to get this query on FrmSearchItem

      
    

//this is my Item Search Form
public partial class FrmItemSearch : Form

      private FrmMasterItem f_mb;
      public FrmItemSearch(FrmMasterItem fmb)
      
            f_mb = fmb;
            InitializeComponent();
      

      private void FrmItemSearch_Load(object sender, EventArgs e)
      
            mysqlConnection conn = DBUtils.GetDbConnection();
            conn.Open();

            string query = this.f_mb.myQuery;//this is only MasterItem Data i want to make some selection for MasterPackage here so the Gridview can View MasterPackage data using sQuery Value from FrmMasterPackage

            MySqlDataAdapter adapter = new MySqlDataAdapter(query, conn);
            DataTable dt = new DataTable();
            adapter.Fill(dt);
            BindingSource bSource = new BindingSource();
            bSource.DataSource = dt;
            dataGridView1.DataSource = bSource;

Answer 1

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Answer 2

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