通過在文本框中鍵入來篩選

Question

我正在使用下面的代碼來綁定我的datagridview和select語句以獲取我需要的記錄。

一切工作正常在這些代碼行，但我想自動過濾記錄時，用戶鍵入的東西到textbox和何時刪除數據，記錄返回到初始狀態，當窗體加載。任何人都可以給我一些提示嗎？

這裏是我的代碼：

public nir() 
{ 
    InitializeComponent(); 
    nir_load(); 
} 

void nir_load() 
{ 
    string cs = "Data Source=IS020114\\CODRINMA;Initial Catalog=gcOnesti;Integrated Security=True"; 
    string select = "select p.cod as Numar, p.data as Data, p.doc_cod as NrDocFurnizor, g.nume as Gestiune, c.nume as Furnizor, p.validat as Validat, p.facturat as Contat from primar p inner join gestiuni g on p.part2=g.gest_id inner join cf c on p.part1=c.cf_id where p.tip=2"; 

    using (SqlConnection con = new SqlConnection(cs)) 
    { 
     SqlCommand cmd = new SqlCommand(select, con); 

     con.Open(); 
     SqlDataAdapter sda = new SqlDataAdapter(); 
     sda.SelectCommand = cmd; 

     DataTable dt = new DataTable(); 
     sda.Fill(dt); 

     BindingSource bs = new BindingSource(); 
     bs.DataSource = dt; 
     dataGridView1.DataSource = bs; 
    } 
} 

private void btnSearch_Click(object sender, EventArgs e) 
{ 
    string cs = "Data Source=IS020114\\CODRINMA;Initial Catalog=gcOnesti;Integrated Security=True"; 
    string select = "select p.cod as Numar, p.data as Data, p.doc_cod as NrDocFurnizor, g.nume as Gestiune, c.nume as Furnizor, p.validat as Validat, p.facturat as Contat from primar p inner join gestiuni g on p.part2=g.gest_id inner join cf c on p.part1=c.cf_id where cod='" +txtnr.Text+"' and data='" + dtpData.Value.ToString("yyyy-MM-dd") +"' and p.tip=2"; 

    using (SqlConnection con = new SqlConnection(cs)) 
    { 
     SqlCommand cmd = new SqlCommand(select, con); 

     con.Open(); 
     SqlDataAdapter sda = new SqlDataAdapter(); 
     sda.SelectCommand = cmd; 

     DataTable dt = new DataTable(); 
     sda.Fill(dt); 

     BindingSource bs = new BindingSource(); 
     bs.DataSource = dt; 
     dataGridView1.DataSource = bs; 
    } 
} 

Answer 1

我用private void txtNumber_KeyUp(object sender, KeyEventArgs e)事件，它工作得很好。