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[英]Call javascript function with parameters and read the return values in page load
[英]call function with parameters in the Page Load .NET
我正在按照3個條件來做一個過濾器表單,在分頁時遇到了問題,因為我沒有從GridView的第二頁加載數據,顯然我必須在Load page事件中調用填充GridView的函數,但是此函數接收的參數是用戶在搜索過濾器中輸入的參數,那么每次在GridView中更改頁面時,如何調用該函數在頁面加載事件中將參數發送給該函數?
功能
public DataTable AdvertSearch(string tittle, DateTime datel, DateTime date2)
{
SqlConnection con = new SqlConnection(Util.GetConnectionString("ConnectionString"));
SqlCommand cmd = new SqlCommand();
cmd.CommandText = "select*from table where titAdvert=@tittle or dateStart=@dateS" or dateEnd=@dateE;
cmd.CommandType = CommandType.Text;
cmd.Parameters.AddWithValue("@tittle", tittle== "" ? (object)DBNull.Value : tittle);
cmd.Parameters.AddWithValue("@dateS", date1== "" ? (object)DBNull.Value : date1);
cmd.Parameters.AddWithValue("@dateE", date2== "" ? (object)DBNull.Value : date2);
cmd.Connection = con;
con.Open();
SqlDataAdapter da = new SqlDataAdapter(cmd);
DataTable dt = new DataTable();
da.Fill(dt);
return dt;
}
搜索按鈕
protected void BtnSearch_Click(object sender, EventArgs e)
{
GridView1.DataSource = AdvertSearch(txtTitle.Text,txtDateI.Text,txtDateF.Text);
GridView1.DataBind();
}
您需要指定一個pageIndexChanging事件,以在用戶單擊下一頁時觸發重新加載網格。 查看以下代碼:
protected void GridView1_PageIndexChanging(object sender, GridViewPageEventArgs e)
{
GridView1.PageIndex = e.NewPageIndex;
BindData();
}
protected void Page_Load(object sender, EventArgs e)
{
GridView1.DataSource = AdvertSearch(txtTitle.Text,txtDateI.Text,txtDateF.Text);
GridView1.DataBind();
}
並且請用英語編寫您的代碼,因為它使所有程序員都更容易理解。
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