手动分页： - 下一个按钮

Question

On按钮点击事件我执行一个新查询我得到一个新表但我无法将其填充到同一网格视图。有什么地方我可以使用schema而不是dataTables。

private void GetData()//This method Displays the Datatable onto the Grid
{            
    int intCount = 0;
    int.TryParse(txt_messagecount.Text, out intCount);
    DataTable dtData = null;
    //dtData = _objIMRSData.GetData(txt_fromdate.Text, txt_todata.Text, txt_messagecount.Text);
    dtData = _objIMRSData.GetTransactionData( txt_fromdate.Text, txt_todata.Text,intCount );           
    grd_transactionLog.DataSource = dtData;
    grd_transactionLog.DataBind();
    dtData.Clear();        
}

//On Button click event I execute a new query i get a new table 
//but i am unable to   populate it on to the same grid view
protected void btn_next_Click(object sender, EventArgs  e)
{ 
    int messageCount = int.Parse(txt_messagecount.Text);
    string lastRecord = grd_transactionLog.Rows[messageCount-1].Cells[1].Text;
    DataTable dtData1 = null;
    //dtData = _objIMRSData.GetData(lastRecord, txt_todata.Text, txt_messagecount.Text);
    dtData1 = _objIMRSData.GetTransactionData(lastRecord, txt_todata.Text, messageCount);
    //grd_transactionLog.Columns.Clear();            
    grd_transactionLog.DataSource = dtData1;
    grd_transactionLog.DataBind();
    dtData1.Clear();
}

Answer 1

重新分配datasource。在click事件中执行此操作。

grd_transactionLog.DataSource = null;
grd_transactionLog.DataSource = dtData1;