從子窗體更新數據庫後刷新datagridview win表格

Question

如何在關閉子窗體後對數據庫進行更改後刷新datagridview我嘗試使用click事件刷新datagridview，但它不工作，請問我必須使用數據集？

  //create an OleDbDataAdapter to execute the query 
      dAdapter = new OleDbDataAdapter(gQuery, connString); 

      //create a command builder 
      cBuilder = new OleDbCommandBuilder(dAdapter); 

      //create a DataTable to hold the query results 
      dTable = new DataTable(); 

      //fill the DataTable 
      dAdapter.Fill(dTable); 


      //BindingSource to sync DataTable and DataGridView 
      bSource = new BindingSource(); 

      //set the BindingSource DataSource 
      bSource.DataSource = dTable; 


      //set the DataGridView DataSource 
      dataGridView1.DataSource = bSource; 

    private void button_Refresh_Click(object sender, EventArgs e) 
    { 

     dataGridView1.DataSource = bSource; 
     dataGridView1.Refresh(); 


    } 

幫助我，請提前

Answer 1

感謝你試過

dataGridView1.DataSource = dTable; 

Answer 2

添加

dataGridView1.Update(); 

這將解決您的問題。

Answer 3

bSource.DataSource = dTable; 
dataGridView1.DataSource = bSource; 

它會更好，如果你還記得你的表

Answer 4

當你的DataGridView的屬性與「數據源」鏈接數據庫，IDE會自動將的BindingSource和TableAdapter的到表單中。

如果更新數據庫，並要刷新的DataGridView，稱之爲：

this.<table name>TableAdapter.Fill(this.<DB name>DataSet.<table name>); 

哪裏<table name>是你的表的名稱（例如用戶）和<DB name>是你的數據庫（例如MYDB）的名稱。

this.UsersTableAdapter.Fill(this.MyDBDataSet.Users);