タイトルが示すように、WPFでデータグリッドを更新するのに問題があります。基本的に私が達成しようとしているのは、SQL Serverデータベースに接続されているデータグリッドであり、ユーザーがいくつかのテキストボックスに情報を入力して送信ボタンをクリックすると自動的に更新されます。2つのテーブルを結合するコマンドがあることに気付くでしょう。Quote_Dataテーブルのデータは、後で別のユーザーによって挿入されます。今のところ、私の唯一の関心事は、テキストボックスからGeneral_Infoテーブルに、そしてそこからデータグリッドに情報を取得することです。以下に含めるコードは正常にコンパイルされますが、送信ボタンを押しても何も起こりません。これは、SQLデータベースを使用して作成した最初のアプリケーションであるため、これらの概念の多くは私にとって新しいものです。そのため、
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
}
public DataSet mds; // main data set (mds)
private void Window_Loaded_1(object sender, RoutedEventArgs e)
{
try
{
string connectionString = Sqtm.Properties.Settings.Default.SqtmDbConnectionString;
using (SqlConnection connection = new SqlConnection(connectionString))
{
connection.Open();
//Merging tables General_Info and Quote_Data
SqlCommand cmd = new SqlCommand("SELECT General_Info.Quote_ID, General_Info.Open_Quote, General_Info.Customer_Name,"
+ "General_Info.OEM_Name, General_Info.Qty, General_Info.Quote_Num, General_Info.Fab_Drawing_Num, "
+ "General_Info.Rfq_Num, General_Info.Rev_Num, Quote_Data.MOA, Quote_Data.MOQ, "
+ "Quote_Data.Markup, Quote_Data.FOB, Quote_Data.Shipping_Method, Quote_Data.Freight, "
+ "Quote_Data.Vendor_Price, Unit_Price, Quote_Data.Difference, Quote_Data.Vendor_NRE_ET, "
+ "Quote_Data.NRE, Quote_Data.ET, Quote_Data.STI_NET, Quote_Data.Mfg_Time, Quote_Data.Delivery_Time, "
+ "Quote_Data.Mfg_Name, Quote_Data.Mfg_Location "
+ "FROM General_Info INNER JOIN dbo.Quote_Data ON General_Info.Quote_ID = Quote_Data.Quote_ID",
connection);
SqlDataAdapter da = new SqlDataAdapter(cmd);
DataTable dt = new DataTable();
da.Fill(dt);
MainGrid.ItemsSource = dt.DefaultView;
mds = new DataSet();
da.Fill(mds, "General_Info");
MainGrid.DataContext = mds.Tables["General_Info"];
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
// renaming column names from the database so they are easier to read in the datagrid
MainGrid.Columns[0].Header = "#";
MainGrid.Columns[1].Header = "Date";
MainGrid.Columns[2].Header = "Customer";
MainGrid.Columns[3].Header = "OEM";
MainGrid.Columns[4].Header = "Qty";
MainGrid.Columns[5].Header = "Quote Number";
MainGrid.Columns[6].Header = "Fab Drawing Num";
MainGrid.Columns[7].Header = "RFQ Number";
MainGrid.Columns[8].Header = "Rev Number";
MainGrid.Columns[9].Header = "MOA";
MainGrid.Columns[10].Header = "MOQ";
MainGrid.Columns[11].Header = "Markup";
MainGrid.Columns[12].Header = "FOB";
MainGrid.Columns[13].Header = "Shipping";
MainGrid.Columns[14].Header = "Freight";
MainGrid.Columns[15].Header = "Vendor Price";
MainGrid.Columns[16].Header = "Unit Price";
MainGrid.Columns[17].Header = "Difference";
MainGrid.Columns[18].Header = "Vendor NRE/ET";
MainGrid.Columns[19].Header = "NRE";
MainGrid.Columns[20].Header = "ET";
MainGrid.Columns[21].Header = "STINET";
MainGrid.Columns[22].Header = "Mfg. Time";
MainGrid.Columns[23].Header = "Delivery Time";
MainGrid.Columns[24].Header = "Manufacturer";
MainGrid.Columns[25].Header = "Mfg. Location";
}
private void submitQuotebtn_Click(object sender, RoutedEventArgs e)
{
CustomerData newQuote = new CustomerData();
int quantity;
quantity = Convert.ToInt32(quantityTxt.Text);
string theDate = System.DateTime.Today.Date.ToString("d");
newQuote.OpenQuote = theDate;
newQuote.CustomerName = customerNameTxt.Text;
newQuote.OEMName = oemNameTxt.Text;
newQuote.Qty = quantity;
newQuote.QuoteNumber = quoteNumberTxt.Text;
newQuote.FdNumber = fabDrawingNumberTxt.Text;
newQuote.RfqNumber = rfqNumberTxt.Text;
newQuote.RevNumber = revNumberTxt.Text;
try
{
string insertConString = Sqtm.Properties.Settings.Default.SqtmDbConnectionString;
using (SqlConnection insertConnection = new SqlConnection(insertConString))
{
insertConnection.Open();
SqlDataAdapter adapter = new SqlDataAdapter(Sqtm.Properties.Settings.Default.SqtmDbConnectionString, insertConnection);
SqlCommand updateCmd = new SqlCommand("UPDATE General_Info " + "Quote_ID = @Quote_ID, "
+ "Open_Quote = @Open_Quote, " + "OEM_Name = @OEM_Name, " + "Qty = @Qty, "
+ "Quote_Num = @Quote_Num, " + "Fab_Drawing_Num = @Fab_Drawing_Num, "
+ "Rfq_Num = @Rfq_Num, " + "Rev_Num = @Rev_Num "
+ "WHERE Quote_ID = @Quote_ID");
updateCmd.Connection = insertConnection;
System.Data.SqlClient.SqlParameterCollection param = updateCmd.Parameters;
//
// Add new SqlParameters to the command.
//
param.AddWithValue("Open_Quote", newQuote.OpenQuote);
param.AddWithValue("Customer_Name", newQuote.CustomerName);
param.AddWithValue("OEM_Name", newQuote.OEMName);
param.AddWithValue("Qty", newQuote.Qty);
param.AddWithValue("Quote_Num", newQuote.QuoteNumber);
param.AddWithValue("Fab_Drawing_Num", newQuote.FdNumber);
param.AddWithValue("Rfq_Num", newQuote.RfqNumber);
param.AddWithValue("Rev_Num", newQuote.RevNumber);
adapter.UpdateCommand = updateCmd;
adapter.Update(mds.Tables[0]);
mds.AcceptChanges();
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
助けてくれる人に事前に感謝します、本当に感謝しています、
- アンドリュー