Question

我尝试使用webform gridview上的文本框来构建搜索功能，该文本框填充来自远程mysql数据库的记录。我遇到了语法错误，但是当我查看手册并尝试遵循正确的语法时，错误仍然存在。我使用Asp.net 2013和远程mysql数据库。

public partial class resitDB : System.Web.UI.Page
{
    string myConn = "SERVER=110.4.**.***;PORT=****;DATABASE= ***** ;UID=**** ;PASSWORD=***** ;";
    DataTable dt;
    protected void Page_Load(object sender, EventArgs e)
    {
        Label1.Text = Session["username"].ToString();

        if (!IsPostBack)
        {
            using (MySqlConnection conn = new MySqlConnection(myConn))
            {
                using (MySqlCommand com = new MySqlCommand("SELECT * FROM `tblresit`", conn))
                {
                    using (MySqlDataAdapter da = new MySqlDataAdapter())
                    {
                        com.Connection = conn;
                        da.SelectCommand = com;
                        using (DataTable dt = new DataTable())
                        {
                            da.Fill(dt);
                            GridView1.DataSource = dt;
                            GridView1.DataBind();
                        }
                    }
                }
            }
        }
        //here

        searchData("");
    }

    public void searchData(string valueSearch)
    {
       //the sql error is here
        string query = "SELECT * FROM 'tblresit' WHERE CONCAT ('custName','IdResit','resitId','custId') LIKE '%"+valueSearch+"%' )";

        MySqlConnection con = new MySqlConnection(myConn);
        MySqlCommand com = new MySqlCommand(query, con);

        MySqlDataAdapter adapter = new MySqlDataAdapter(com);
        dt = new DataTable();
        adapter.Fill(dt);
        GridView1.DataSource = dt;
    }

    protected void searchBtn_Click(object sender, EventArgs e)
    {
        string valueSearch = searchTxt.Text.ToString();
        searchData(valueSearch);
    }  
}

Answer 1

我的猜测是你想写类似

的东西

Sub T1()
Dim sourceTitle As Range, targetTitle As Range

Set sourceTitle = Workbooks("Data to Copy.xlsm").Worksheets(2).Columns("B")
Set targetTitle = Workbooks("Data Destination.xlsm").Worksheets(1).Columns("C")

Set sourceProject = Workbooks("Data to Copy.xlsm").Worksheets(2).Columns("C")
Set targetProject = Workbooks("Data 
Destination.xlsm").Worksheets(1).Columns("D")

Set sourcePM = Workbooks("Data to Copy.xlsm").Worksheets(2).Columns("D")
Set targetPM = Workbooks("Data Destination.xlsm").Worksheets(1).Columns("I")

Set sourceBusiness = Workbooks("Data to Copy.xlsm").Worksheets(2).Columns("E")
Set targetBusiness = Workbooks("Data Destination.xlsm").Worksheets(1).Columns("K")

Set sourceHigh = Workbooks("Data to Copy.xlsm").Worksheets(2).Columns("F")
Set targetHigh = Workbooks("Data Destination.xlsm").Worksheets(1).Columns("L")

Set sourceE0 = Workbooks("Data to Copy.xlsm").Worksheets(2).Columns("G")
Set targetE0 = Workbooks("Data Destination.xlsm").Worksheets(1).Columns("S")

Set sourceActual = Workbooks("Data to Copy.xlsm").Worksheets(2).Columns("H")
Set targetActual = Workbooks("Data Destination.xlsm").Worksheets(1).Columns("V")

sourceTitle.Copy Destination:=targetTitle
sourceProject.Copy Destination:=targetProject
sourcePM.Copy Destination:=targetPM
sourceBusiness.Copy Destination:=targetBusiness
sourceHigh.Copy Destination:=targetHigh
sourceE0.Copy Destination:=targetE0
sourceActual.Copy Destination:=targetActual
End Sub

程序返回sql语法错误，需要帮助识别错误

1 个答案: