創建搜索按鈕

Question

我想在我的c＃表單上創建一個按鈕，當我鍵入客戶端ID或姓氏時，按下搜索按鈕，它應該在c＃表單上顯示他的所有信息。

這不起作用，當按鈕被點擊時，消息框顯示'clientid'。

守則類

public bool searchpersonDetails(string personid, string personname) 
    { 
     SqlConnection conn = new SqlConnection(ConfigurationSettings.AppSettings["ConnectionString"]); 
     conn.ConnectionString = "Data Source=pc101;Initial Catalog=REMITTANCE;User ID=sa;Password=mike"; 
     conn.Open(); 


    if (personid == null) 
     { 
      Fom1 frm = new Fom1(); 
      frm.ShowDialog(); 
      personid = client_id; 
     } 

    SqlCommand cmd = new SqlCommand(); 
    string sqlQuery = null; 
    //sqlQuery = "select *,floor(datediff(curdate(),dateofbirth)/365) AS AGE from tblspersonaldetails where client_id='" + personid + "'"; 

    sqlQuery = "select * from tblspersonaldetails where client_id='" + personid + "'"; 

    cmd.Connection = conn; 
    cmd.CommandText = sqlQuery; 
    cmd.CommandType = System.Data.CommandType.Text; 

    SqlDataReader dr = null; 
    dr = cmd.ExecuteReader(); 
    if (dr.Read()) 
    { 
     client_id = dr["clientid"].ToString(); 
     surname = dr["surname"].ToString(); 
     othername = dr["othername"].ToString(); 
     gender = dr["gender"].ToString(); 
     date_ofbirth = (DateTime) dr["dateofbirth"]; 
     nationality = dr["nationality"].ToString(); 
     //age = dr["Age"]; 
     residential_address = dr["residentialaddress"].ToString(); 
     postal_address = dr["postaladdress"].ToString(); 
     contact_number = dr["telephonenumber"].ToString(); 
     marital_status = dr["maritalstatus"].ToString(); 
     spouse_name = dr["spousename"].ToString(); 
     email = dr["email"].ToString(); 
     occupation = dr["occupation"].ToString(); 
     typeof_id = dr["typeofid"].ToString(); 
     id_number = dr["idnumber"].ToString(); 
     id_expirydate = (DateTime) dr["idexpirydate"]; 
     remarks = dr["remarks"].ToString(); 
     picture = dr["picture"].ToString(); 
     return true; 
     cmd.CommandText = null; 
    } 

    else 
    { 
     return false; 
    } 
     conn.Close();  
} 

和代碼背後

private void lklSearch_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e) 
    { 
     SqlConnection conn = new SqlConnection(ConfigurationSettings.AppSettings["ConnectionString"]); 
     conn.ConnectionString = "Data Source=pc101;Initial Catalog=REMITTANCE;User ID=sa;Password=mike"; 
     conn.Open(); 


     try 
     { 
      Personal person = new Personal(); 

      if (person.searchpersonDetails(txtClientid.Text, txtSurname.Text)) 
      { 
       var 
       _with3 = this; 
       txtClientid.Text = person.ID.ToString(); 
       _with3.txtSurname.Text = person.Sname.ToString(); 
       _with3.txtOthername.Text = person.Oname.ToString(); 



       if (person.sex.ToString() == "Male") 
       { 
        optMale.Checked = true; 
       } 
       else 
       { 
        optFemale.Checked = true; 
       } 

       _with3.dtpDob.Value = person.BirthDate; 
       _with3.txtNationality.Text = person.country.ToString(); 
       _with3.txtResidentialaddress.Text = person.addressResidential.ToString(); 
       _with3.txtPostaladdress.Text = person.AddressPostal.ToString(); 
       _with3.txtContactnumber.Text = person.NumberContact.ToString(); 

       string mstatus = person.statusMarital.ToString(); 
       switch (mstatus) 
       { 
        case "Single": 
         this.cboMaritalstatus.Text = "Single"; 
         break; 
        case "Married": 
         _with3.cboMaritalstatus.Text = "Married"; 
         break; 
        case "Widow(er)": 
         _with3.cboMaritalstatus.Text = "Widow(er)"; 
         break; 
        case "Divorce": 
         _with3.cboMaritalstatus.Text = "Divorce"; 
         break; 
       } 

       _with3.txtSpousename.Text = person.nameSpouse.ToString(); 
       _with3.txtEmail.Text = person.mail.ToString(); 
       _with3.txtOccupation.Text = person.Work.ToString(); 

       string iType = person.idtype.ToString(); 
       switch (iType) 
       { 
        case "Bank ID Card": 
         this.cboIdtype.Text = "Bank ID Card"; 
         break; 
        case "Driver Licence": 
         _with3.cboIdtype.Text = "Driver Licence"; 
         break; 
        case "Passport": 
         _with3.cboIdtype.Text = "Passport"; 
         break; 
        case "National Identification": 
         _with3.cboIdtype.Text = "National Identification"; 
         break; 
        case "NHIS": 
         _with3.cboIdtype.Text = "NHIS"; 
         break; 
        case "SSNIT": 
         _with3.cboIdtype.Text = "SSNIT"; 
         break; 
        case "Voters ID": 
         _with3.cboIdtype.Text = "Voters ID"; 
         break; 
       } 

       _with3.txtIdnumber.Text = person.numberID.ToString(); 
       _with3.dtpExpiringdate.Value = person.expirydateID; 
       _with3.txtRemarks.Text = person.myremarks.ToString(); 



       btnPUpdate.Enabled = true; 
       /// this.txtChurchID.Text = this.txtID.Text; 
       ///this.txtChurchID.ReadOnly = true; 
       person.searchpersonDetails(txtClientid.Text = "", txtSurname.Text = ""); 

      } 
      else 
      { 
       MessageBox.Show("Record not found"); 
      } 

     } 

     catch (Exception ex) 
     { 
      MessageBox.Show(ex.Message); 
     } 

     finally 
     { 
      // Close data reader object and database connection 


      if (conn.State == ConnectionState.Open) 
       conn.Close(); 
     }    

    } 

Answer 1

它是Client_id或 '客戶端ID' 在你的數據庫？在您的查詢，你提到：

sqlQuery = "select * from tblspersonaldetails where client_id='" + personid + "'";  

幾行了，你有：

client_id = dr["clientid"].ToString(); 

您應該改變查詢Clientid或修改代碼，dr[client_id]（這取決於列名在您的數據庫中。