我是一個新的C#程序員,它已經開始使用C#的一個月,到目前爲止我可以說很好,但即時處理一個簡單的情況,但我還沒有得到它的工作,有這種情況:如何更新父窗體上的DataGridView從一個子窗體C#
我有2個窗體父和子,父包含一個Xtragrid控件和一個按鈕,打開第二個窗體並加載第二種形式的文本框帶有值,第二種帶有一個按鈕,用於在發生任何更改時更新值。但我仍然沒有得到它的工作,我有以下錯誤:
必須聲明標量變量在@ID
我理解probleme的原因,但我只是不能修復它,香港專業教育學院做了一些研究,我自己整理出來,但我仍然didnt管理,使其工作 最後一行
da.updatecommand.parameters.addwithvalues("[email protected]",ds.tables["tblLesseeYW"].Rows[LesseeYW.Position][0];
我已經做到了,但它不工作(LesseeYW這是我結合源碼Ë對象,但在目前情況下它不退出,也沒有這是可以理解 數據集:有代碼需要幫助pleaese
// This the class ive created to retrieve all Columns from the SQl server data base
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace YoungWoman
{
public static class GetRowData
{
public static int LesseeId;
public static byte LesseePic;
public static string LesseeName;
public static string LesseeLastName;
public static string PassportNo;
public static string IDNo;
public static DateTime BirthDate;
public static string Gender;
public static string Country;
public static string City;
public static string Province;
public static string LesseePostalCode;
public static string MobileNo;
public static string HomePhoneNo;
public static string TutorName;
public static string TutorLastName;
public static string AddressTutor;
public static string AddressLessee;
public static string TutorPhoneNo;
public static string TutorEmail;
}
}
// the parent form
namespace YoungWoman
{
public partial class Lessee2 : UserControl
{
DataSet ds = new DataSet();
DataView dv ;
SqlDataAdapter daLessee = new SqlDataAdapter();
SqlDataAdapter daReservation = new SqlDataAdapter();
BindingSource LesseeYW = new BindingSource();
BindingSource ReservationCenterYW = new BindingSource();
SqlConnection conne = SqlCoonectionSEtup.GetConnection;
// the button that opens the Child Form
private void EditLesseeFrm_Click(object sender, EventArgs e)
{
Lesseefrm Lessee = new Lesseefrm(Utils.Formtype.edit, 1);
Lessee.LesseeEventHandler += new EventHandler(RefreshLesseeGrid);
GetRowData.LesseeId = Convert.ToInt32(gridView1.GetRowCellValue (gridView1.FocusedRowHandle, "LesseeId"));
GetRowData.LesseeName = Convert.ToString(gridView1.GetRowCellValue(gridView1.FocusedRowHandle, "LesseeName"));
GetRowData.LesseeLastName = Convert.ToString(gridView1.GetRowCellValue(gridView1.FocusedRowHandle,"LesseeLastName"));
GetRowData.PassportNo = Convert.ToString(gridView1.GetRowCellValue(gridView1.FocusedRowHandle,"PassportNo"));
GetRowData.Gender = Convert.ToString(gridView1.GetRowCellValue(gridView1.FocusedRowHandle, "Gender"));
GetRowData.Province = Convert.ToString(gridView1.GetRowCellValue(gridView1.FocusedRowHandle, "Province"));
GetRowData.BirthDate = Convert.ToDateTime(gridView1.GetRowCellValue(gridView1.FocusedRowHandle, "BirthDate"));
GetRowData.City = Convert.ToString(gridView1.GetRowCellValue(gridView1.FocusedRowHandle, "City"));
GetRowData.Country = Convert.ToString(gridView1.GetRowCellValue(gridView1.FocusedRowHandle, "Country"));
GetRowData.MobileNo = Convert.ToString(gridView1.GetRowCellValue(gridView1.FocusedRowHandle, "MobileNo"));
GetRowData.HomePhoneNo = Convert.ToString(gridView1.GetRowCellValue(gridView1.FocusedRowHandle, "HomePhoneNo"));
GetRowData.IDNo = Convert.ToString(gridView1.GetRowCellValue(gridView1.FocusedRowHandle, "IDNo"));
GetRowData.AddressLessee = Convert.ToString(gridView1.GetRowCellValue(gridView1.FocusedRowHandle, "AddressLessee"));
GetRowData.AddressTutor = Convert.ToString(gridView1.GetRowCellValue(gridView1.FocusedRowHandle, "AddressTutor"));
GetRowData.LesseePostalCode = Convert.ToString(gridView1.GetRowCellValue(gridView1.FocusedRowHandle, "LesseePostalCode"));
GetRowData.TutorName = Convert.ToString(gridView1.GetRowCellValue(gridView1.FocusedRowHandle, "TutorName"));
GetRowData.TutorLastName = Convert.ToString(gridView1.GetRowCellValue(gridView1.FocusedRowHandle, "TutorLastName"));
GetRowData.TutorPhoneNo = Convert.ToString(gridView1.GetRowCellValue(gridView1.FocusedRowHandle, "TutorPhoneNo"));
GetRowData.TutorEmail = Convert.ToString(gridView1.GetRowCellValue(gridView1.FocusedRowHandle, "TutorEmail"));
Lessee.ShowDialog();
}
(// Child LOad_form if form type == Edit)
if (formtype == Formtype.edit && Lesseeid > 0)
{
LesseeIdtextEdit.Enabled = false;
ClearBtnlayoutControlItem26.Visibility = DevExpress.XtraLayout.Utils.LayoutVisibility.Never;
SaveBtn.Text = "&Edit";
SaveBtn.Image = Resources.brush_16;
this.Text = string.Format(" Edit Lessee Information - YW Residence ");
LesseeIdtextEdit.Text = Convert.ToInt32(GetRowData.LesseeId).ToString();
txtName.Text = GetRowData.LesseeName;
txtLAstname.Text = GetRowData.LesseeLastName;
txtPassport.Text = GetRowData.PassportNo;
txtID.Text = GetRowData.IDNo;
GendercomboBoxEdit.SelectedItem = GetRowData.Gender;
DobdateEdit.DateTime = GetRowData.BirthDate;
CountrycomboBoxEdit.SelectedItem = GetRowData.Country;
txtProvince.Text = GetRowData.Province;
txtCity.Text = GetRowData.City;
txtPostalCode.Text = GetRowData.LesseePostalCode;
LesseememoEdit1.Text = GetRowData.AddressLessee;
txtMobile.Text = GetRowData.MobileNo;
txtHomePhone.Text = GetRowData.HomePhoneNo;
txtTutorName.Text = GetRowData.TutorName;
txttutorLastname.Text = GetRowData.TutorLastName;
tutorAddresstxt.Text = GetRowData.AddressTutor;
txtTutorMobile.Text = GetRowData.TutorPhoneNo;
txtEmail.Text = GetRowData.TutorEmail;
}
public event System.EventHandler LesseeEventHandler;
private void SaveBtn_Click(object sender, EventArgs e)
if (formtype == Formtype.edit && Lesseeid > 0)
{
MemoryStream ms = new MemoryStream();
PicBox1.Image.Save(ms, System.Drawing.Imaging.ImageFormat.Jpeg);
byte[] Pic_arr = new byte[ms.Length];
ms.Position = 0;
ms.Read(Pic_arr, 0, Pic_arr.Length);
try
{
da.UpdateCommand = new SqlCommand(" UPDATE LesseeYW SET LesseePic = @image , LesseeName = @Name, LesseeLastName = @Last , PassportNo = @pass,IDNo = @Number, BirthDate [email protected] ,Gender = @gender , Country [email protected],LesseePostalCode = @Postal,City = @city , Province = @province,MobileNo = @Mobile,HomePhoneNo = @phone,TutorName = @tutor,[email protected],AddressTutor = @line1,[email protected],TutorPhoneNo = @Tphone,TutorEmail [email protected] WHERE LesseeId = @ID ", conne);
da.UpdateCommand.Parameters.AddWithValue("@image", Pic_arr);
da.UpdateCommand.Parameters.AddWithValue("@Name", txtName.Text);
da.UpdateCommand.Parameters.AddWithValue("@Last", txtLAstname.Text);
da.UpdateCommand.Parameters.AddWithValue("@pass", txtPassport.Text);
da.UpdateCommand.Parameters.AddWithValue("@Number", txtID.Text);
da.UpdateCommand.Parameters.AddWithValue("@birth", DobdateEdit.DateTime);
da.UpdateCommand.Parameters.AddWithValue("@gender", GendercomboBoxEdit.SelectedItem.ToString());
da.UpdateCommand.Parameters.AddWithValue("@country", CountrycomboBoxEdit.SelectedItem.ToString());
da.UpdateCommand.Parameters.AddWithValue("@Postal", txtPostalCode.Text);
da.UpdateCommand.Parameters.AddWithValue("@city", txtCity.Text);
da.UpdateCommand.Parameters.AddWithValue("@province", txtProvince.Text);
da.UpdateCommand.Parameters.AddWithValue("@Mobile", txtMobile.Text);
da.UpdateCommand.Parameters.AddWithValue("@phone", txtHomePhone.Text);
da.UpdateCommand.Parameters.AddWithValue("@tutor", txtTutorName.Text);
da.UpdateCommand.Parameters.AddWithValue("@Tlast", txttutorLastname.Text);
da.UpdateCommand.Parameters.AddWithValue("@line1", tutorAddresstxt.Text);
da.UpdateCommand.Parameters.AddWithValue("@line2", LesseememoEdit1.Text);
da.UpdateCommand.Parameters.AddWithValue("@Tphone", txtTutorMobile.Text);
da.UpdateCommand.Parameters.AddWithValue("@Temail", txtEmail.Text);
//da.UpdateCommand.Parameters.AddWithValue("@ID"
da.UpdateCommand.ExecuteNonQuery();
conne.Close();
MessageBox.Show("Lessee Details Updated ", "Confirmation", MessageBoxButtons.OK, MessageBoxIcon.Information);
this.Close();
}
catch (Exception Ex)
{
MessageBox.Show(Ex.Message);
}
}
非常感謝,我告訴過你,我還是新的,我會嘗試編程更客觀,我真的很感激。 – 2012-07-16 21:22:19