I have a Database named DataOberge and a Table named TableOberge with fields (Id, FirstName, Phone, DateOut, HourOut, DateIN, HourIN). Fields DateOut and DateIN are of type Date. Fields HourOut and HourIN are of type Time.
How to display in datagridview2 the people who arrive today's Date and Time its depends on the field DateIN and HourIN?
This is all my code :
Imports System.Data.SqlClient
Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load
Dim InfoCommand As SqlCommand
Dim StrCon As SqlConnection = Nothing
Try
StrCon = New SqlConnection("data source=ABIDINE; initial catalog= DataOberge;User ID=sa;Password=123456789;")
Using DepCom As SqlCommand = New SqlCommand("Select * From TableOberge", StrCon)
StrCon.Open()
Using DepAdap As SqlDataAdapter = New SqlDataAdapter(DepCom)
Dim DepDT As DataTable = New DataTable
DepAdap.Fill(DepDT)
DataGridView1.DataSource = DepDT
Dim CurrentBs As BindingSource = New BindingSource()
CurrentBs.DataSource = DepDT
DataGridView2.DataSource = CurrentBs
'CurrentBs.Filter = String.Format("[DateIN] = #{0}# AND [HourIN] >= #{1}#", DateTime.Now.Date, DateTime.Now.Hour)
CurrentBs.Filter = String.Format("[DateIN] = #{0}# AND [HourIN] >= #{1}#", DateTime.Now.Date, DateTime.Now.Hour)
End Using
StrCon.Close()
End Using
Catch ex As Exception
Console.WriteLine(ex.Message)
Finally
If StrCon IsNot Nothing Then
If StrCon.State = ConnectionState.Open Then
StrCon.Close()
End If
StrCon.Dispose()
End If
End Try
End Sub
Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
Dim StrCon As New SqlConnection
StrCon = New SqlConnection("data source=ABIDINE; initial catalog= DataOberge;User ID=sa;Password=123456789;")
Using Command As New SqlCommand With {.Connection = StrCon}
With Command
.CommandText = "INSERT INTO [TableOberge] ([ID], [FIRSTNAME], [PHONE], [ADRESSE], [DATE_OUT], [HOUR_OUT], [DATE_IN], [HOUR_IN]) VALUES (#ID, #FIRSTNAME, #PHONE, #ADRESSE, #DATE_OUT, #HOUR_OUT, #DATE_IN, #HOUR_IN)"
.Parameters.Add("#ID", SqlDbType.Int).Value = TextBox1.Text
.Parameters.Add("#FIRSTNAME", SqlDbType.NVarChar).Value = TextBox2.Text
.Parameters.Add("#PHONE", SqlDbType.NVarChar).Value = TextBox3.Text
.Parameters.Add("#ADRESSE", SqlDbType.NVarChar).Value = TextBox4.Text
.Parameters.Add("#DATE_OUT", SqlDbType.Date).Value = TextBox5.Text
.Parameters.Add("#HOUR_OUT", SqlDbType.Time).Value = TextBox6.Text
.Parameters.Add("#DATE_IN", SqlDbType.Date).Value = TextBox7.Text
.Parameters.Add("#HOUR_IN", SqlDbType.Time).Value = TextBox8.Text
End With
If StrCon.State = ConnectionState.Closed Then StrCon.Open()
If Command.ExecuteNonQuery() = 1 Then
MsgBox("SUCCED ADD", MsgBoxStyle.MsgBoxRtlReading, "SUCCES")
Else
MsgBox("ERROR FATAL", MsgBoxStyle.MsgBoxRtlReading, "ERROR")
End If
StrCon.Close()
End Using
End Sub
You would specify a WHERE clause in your SQL command that populates the data in DataGridView2. It would probably be best to add a BindingSource to your Form and bind it to the DataTable you populated, this is so you can set the filter. Try something like this:
'Declare the connection object
Dim StrCon As SqlConnection = Nothing
'Wrap code in Try/Catch
Try
'Set the connection object to a new instance
'TODO: Change "My Connection String Here" with a valid connection string
StrCon = New SqlConnection("My Connection String Here")
'Create a new instance of the command object
Using DepCom As SqlCommand = New SqlCommand("Select * From TableOberge", StrCon)
'Open the connection
StrCon.Open()
'Create a new instance of the data adapter object
Using DepAdap As SqlDataAdapter = New SqlDataAdapter(DepCom)
'Create a new instance of a DataTable
Dim DepDT As DataTable = New DataTable
'Use the DataAdapter to fill the data from the SqlCommand into the DataTable
DepAdap.Fill(DepDT)
'Set the DataSource of the DataGridView to the filled DataTable
DataGridView1.DataSource = DepDT
'Create a new instance of a BindingSource
Dim CurrentBs As BindingSource = New BindingSource()
'Setup the properties of the BindingSource
CurrentBs.DataSource = DepDT
'Bind the BindingSource to the DataGridView
DataGridView2.DataSource = CurrentBs
'Filter the data in the BindingSource to today's date and anything on or after the current hour
CurrentBs.Filter = $"[DateIN] = #{DateTime.Now.Date}# AND [HourIN] >= #{DateTime.Now.Hour}#"
End Using
'Close the connection
StrCon.Close()
End Using
Catch ex As Exception
'Display the error
Console.WriteLine(ex.Message)
Finally
'Check if the connection object was initialized
If StrCon IsNot Nothing Then
If StrCon.State = ConnectionState.Open Then
'Close the connection if it was left open(exception thrown)
StrCon.Close()
End If
'Dispose of the connection object
StrCon.Dispose()
End If
End Try
Alternatively, if you didn't want to use the BindingSource, then just create a new SqlCommand and SqlDataAdapter and then do the same thing only for your DataGridView2 using the appropriate SQL query.
UPDATE
In my example I use String Interpolation, but I found that the OP is using a version of Visual Studios that does not support it. Because of this, change the following:
'From:
CurrentBs.Filter = $"[DateIN] = #{DateTime.Now.Date}# AND [HourIN] >= #{DateTime.Now.Hour}#"
'To:
CurrentBs.Filter = String.Format("[DateIN] = #{0}# AND [HourIN] >= #{1}#", DateTime.Now.Date, DateTime.Now.Hour)
Related
Im trying to edit items after inserting to access by clicking the save button? How can i save the edits done in datagridview rows to access?
Already tried the update query
For each loop
vb.net
Private Sub BunifuFlatButton1_Click(sender As Object, e As EventArgs) Handles BunifuFlatButton1.Click
Dim constring As String = ("Provider=Microsoft.ACE.OLEDB.12.0;Data Source= C:\Users\PU-IMO\Desktop\BlueWavesIS - Copy\BlueWavesIS\BlueWavesIS.accdb")
Dim conn As New OleDbConnection(constring)
For Each row As DataGridViewRow In DataGridView1.Rows
Using con As New OleDbConnection(constring)
'nettxt.Text = (grosstxt.Text * perdistxt.Text / 100) - (dislctxt.Text + disusd.Text + distax.Text)
Dim cmd As New OleDbCommand("Update PurchaseInvoice set [Itemnum] = #ItemNum, [Itemname]= #ItemName, [Itemqty]= #ItemQty, [Itemprice] = #ItemPrice, [discount] =#discount, [subtotal] = #subtotal,[Preference] = " & preftxt.Text & ", [Suppnum] = " & pnumtxt.Text & ", [UniqueID] = " & pautotxt.Text & " Where [UniqueID] = " & pautotxt.Text & "", con)
cmd.Parameters.AddWithValue("#ItemID", row.Cells("ItemID").Value)
cmd.Parameters.AddWithValue("#ItemName", row.Cells("ItemName").Value)
cmd.Parameters.AddWithValue("#ItemQty", row.Cells("ItemQty").Value)
cmd.Parameters.AddWithValue("#ItemPrice", row.Cells("ItemPrice").Value)
cmd.Parameters.AddWithValue("#discount", row.Cells("discount").Value)
cmd.Parameters.AddWithValue("#subtotal", row.Cells("subtotal").Value)
cmd.Parameters.AddWithValue("#Ref", preftxt.Text.ToString)
cmd.Parameters.AddWithValue("#Suppnum", Convert.ToInt32(pnumtxt.Text))
cmd.Parameters.AddWithValue("#UniqueID", Convert.ToInt32(pautotxt.Text))
DataGridView1.AllowUserToAddRows = False
con.Open()
cmd.ExecuteNonQuery()
con.Close()
End Using
Next
'This the code i used to show the data in datagridview:
Private Sub NewPurchaseInvoice_Load(sender As Object, e As EventArgs) Handles MyBase.Load
Dim con As New OleDbConnection
con.ConnectionString = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source= C:\Users\PU-IMO\Desktop\BlueWavesIS - Copy\BlueWavesIS\BlueWavesIS.accdb"
con.Open()
Dim sql As String = "Select [Itemnum],[Itemname],[Itemprice],[ItemQty],[discount],[subtotal] from PurchaseInvoice where [UniqueID] = " & pautotxt.Text & ""
Dim cmd10 As OleDbCommand = New OleDbCommand(Sql, con)
'Dim adap As New OleDbDataAdapter("Select [Itemnum],[Itemname],[Itemprice],[discount],[subtotal] from PurchaseInvoice where UniqueID = " & pautotxt.Text & "", con)
'Dim ds As New System.Data.DataSet
'adap.Fill(ds, "PurchaseInvoice")
Dim dr As OleDbDataReader = cmd10.ExecuteReader
Do While dr.Read()
DataGridView1.Rows.Add(dr("ItemNum"), dr("ItemName"), dr("ItemQty"), dr("ItemPrice"), dr("discount"), dr("subtotal"))
Loop
con.Close()
I expect that all the rows will be updated as each other, but the actual output is that each row has different qty name etc...
This code does not seem appropriate in the load event because pautotxt.Text will not have a value yet. Can you move it to a Button.Click?
I guessed that the datatype of ID is an Integer. You must first test if the the .Text property can be converted to an Integer. .TryParse does this. It returns a Boolean and fills IntID that was provided as the second parameter.
You can pass the connection string directly to the constructor of the connection. The Using...End Using blocks ensure that your database objects are closed and disposed even if there is an error. You can pass the Select statement and the connection directly to the constructor of the command.
ALWAYS use Parameters, never concatenate strings to avoid sql injection. Don't use .AddWithValue. See http://www.dbdelta.com/addwithvalue-is-evil/
and
https://blogs.msmvps.com/jcoehoorn/blog/2014/05/12/can-we-stop-using-addwithvalue-already/
and another one:
https://dba.stackexchange.com/questions/195937/addwithvalue-performance-and-plan-cache-implications
The DataAdapter will open the connection, fiil the DataTable and close the connection if it finds it closed; however if it is found open it will leave it open.
The last line binds the grid to the DataTable.
Private Sub FillGrid()
If Not Integer.TryParse(pautotxt.Text, IntID) Then
MessageBox.Show("Please enter a number")
Return
End If
dt = New DataTable()
Using con As New OleDbConnection(ConnString)
Using cmd As New OleDbCommand(Sql, con)
cmd.Parameters.Add("#ID", OleDbType.Integer).Value = IntID
Dim adap = New OleDbDataAdapter(cmd)
adap.Fill(dt)
End Using
End Using
DataGridView1.DataSource = dt
End Sub
DataTables are very clever. When bound to a DataGridView they keep track of changes and mark rows as update, insert, or delete. The DataAdapter uses this info to update the database. Once the database is updated we call .AcceptChanges on the DataTable to clear the marking on the rows.
Private Sub UpdateDatabase()
Using cn As New OleDbConnection(ConnString)
Using da As New OleDbDataAdapter(Sql, cn)
da.SelectCommand.Parameters.Add("#ID", OleDbType.Integer).Value = IntID
Using builder As New OleDbCommandBuilder(da)
da.Update(dt)
End Using
End Using
End Using
dt.AcceptChanges()
End Sub
Dim cmd As OleDbCommand = New OleDbCommand(Sql, con)
Dim strSql As String = "Select EmpName,Count(EmpName) from tblPO where OrderType='" &
"B2B" & "' and POExpireDate < #LogDate Group By EmpName"
Dim tstDate As DateTime = DateTime.Now
Dim dateAsString As String = tstDate.ToString("dd/MM/yy")
cmd.Parameters.AddWithValue("#LogDate", CType(dateAsString, String))
Dim dtb As New DataTable
Using dad As New OleDbDataAdapter(strSql, con)
dad.Fill(dtb)
End Using
con.Close()
I'm working in VB.NET
NO value given for one or more given parameters
error coming while filling datatable..why...how could I fix this.
pls help
Your problem is that you are passing your strSql and the connection to the data adapter but not the command which is what contains the parameter. Pass the command instead
Private Sub Button2_Click(sender As Object, e As EventArgs) Handles Button2.Click
'Using blocks ensure that your database objects are
'Closed And Disposed even if there Is an error.
Dim dtb As New DataTable
Using con As New OleDbConnection("Your connection string")
Dim strSql As String = "Select EmpName,Count(EmpName) from tblPO where OrderType = 'B2B' and POExpireDate < #LogDate Group By EmpName;"
Using cmd As OleDbCommand = New OleDbCommand(strSql, con)
cmd.Parameters.Add("#LogDate", OleDbType.Date).Value = DateTime.Now
'On the next line pass the command, no need to pass connection
'because it has already been passed to the constructor of the command
Using dad As New OleDbDataAdapter(cmd)
dad.Fill(dtb)
End Using
End Using
End Using
End Sub
I am Developing VB.net application.
In that application I take DataGirdView to display data.
I took DataSource property of the datagridview to display 3 columns' data directly from database.
After those columns I add another DataGridViewComboBoxColumn. Then I a want to add dynamic the data into that ComboBoxColumn.
how to do this?
Private Function CreatComboBoxWithEnum() As DataGridViewComboBoxColumn
Dim combo As New DataGridViewComboBoxColumn()
Sqlconn = New SqlConnection
Sqlconn.ConnectionString = "server=.\SQLEXPRESS_2005;Initial Catalog=MachineShopScheduling ;Integrated Security=SSPI;"
Dim adpter As New SqlDataAdapter
Dim ds As New DataTable
Try
Sqlconn.Open()
Dim Query As String
For Each dr As DataGridViewRow In DataGridView1.Rows
Dim val As String = dr.Cells("SrDataGridViewTextBoxColumn").Value.ToString
Query = "select OperationNo from RoutingCalculation where Sr ='" & val & "' "
COMMAND = New SqlCommand(Query, Sqlconn)
adpter.SelectCommand = COMMAND
adpter.Fill(ds)
combo.DataSource = ds
combo.DataPropertyName = "OperationNo"
combo.Name = "OperationNo"
OperationNo.ValueMember = "OperationNo"
OperationNo.DisplayMember = "OperationNo"
Next
Sqlconn.Close()
Catch ex As Exception
MessageBox.Show(ex.Message)
End Try
Return combo
End Function
Private Sub load_operationNo()
Sqlconn = New SqlConnection
Sqlconn.ConnectionString = "server=.\SQLEXPRESS_2005;Initial Catalog=MachineShopScheduling ;Integrated Security=SSPI;"
Try
op.Name = "OperationNo"
DataGridView1.Columns.Add(op)
Sqlconn.Open()
Dim Query As String
Dim i As Integer = 0
For Each dr As DataGridViewRow In DataGridView1.Rows
Dim OPno As New DataGridViewComboBoxCell
With OPno
Dim adpter As New SqlDataAdapter
Dim dt As New DataTable
Dim val As String = dr.Cells("SrDataGridViewTextBoxColumn").Value.ToString
Query = "select OperationNo from RoutingCalculation where Sr = " & val & " order by sr"
Using cmd As New SqlCommand(Query, Sqlconn)
adpter.SelectCommand = cmd
adpter.Fill(dt)
End Using
.DataSource = dt
.ValueMember = "OperationNo"
.DisplayMember = "OperationNo"
DataGridView1.Rows(i).Cells("OperationNo") = OPno
i = i + 1
End With
Next
Sqlconn.Close()
Catch ex As Exception
'MessageBox.Show(ex.Message)
End Try
End Sub
This is the code to add dynamically add the data into DatagridViewComboboxColumn
I made a POS project but when i save the data to access database the error is shown:
no value given for one or more required parameters.
My code is:
Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
Dim MyConnection As OleDb.OleDbConnection = Nothing
Dim MyTransaction As OleDb.OleDbTransaction = Nothing
Try
'create the connection and transaction object
MyConnection = New OleDb.OleDbConnection(My.Settings.dbConnectionString)
MyConnection.Open()
MyTransaction = MyConnection.BeginTransaction
'insert the new recipt
Dim SQL As String = "insert into recipts (ReciptDate, ReciptTotal) values (:0,:1)"
Dim CMD1 As New OleDb.OleDbCommand
CMD1.Connection = MyConnection
CMD1.Transaction = MyTransaction
CMD1.CommandText = SQL
CMD1.Parameters.AddWithValue(":0", Now.Date)
CMD1.Parameters.AddWithValue(":1", TextBox4.Text)
CMD1.ExecuteNonQuery()
CMD1.Dispose()
'get the id for the recipt
SQL = "Select max (reciptId) as MAXID from recipts"
Dim CMD2 As New OleDb.OleDbCommand
CMD2.Connection = MyConnection
CMD2.Transaction = MyTransaction
CMD2.CommandText = SQL
Dim ReciptID As Long = CMD2.ExecuteScalar()
CMD2.Dispose()
'insert the details of the recipt
Dim I As Integer
For I = 0 To DGV2.Rows.Count - 1
'get the values
Dim Barcode As String = DGV2.Rows(I).Cells(0).Value
Dim BuyPrice As Decimal = DGV2.Rows(I).Cells(2).Value
Dim SellPrice As Decimal = DGV2.Rows(I).Cells(3).Value
Dim ItemCount As Integer = DGV2.Rows(I).Cells(4).Value
'next create a command
Dim CMD3 As New OleDb.OleDbCommand
SQL = "insert into ReciptDetails" & _
"(ReciptId, Barcode,ItemCount,ItemBuyPrice,ItemSellPrice)" & _
"Values" & _
"(:0 ,:1 ,:2 ,:3 ,:4)"
CMD3.Connection = MyConnection
CMD3.Transaction = Mytransaction
CMD3.CommandText = SQL
CMD1.Parameters.AddWithValue(":0", ReciptID)
CMD1.Parameters.AddWithValue(":1", Barcode)
CMD1.Parameters.AddWithValue(":2", ItemCount)
CMD1.Parameters.AddWithValue(":3", BuyPrice)
CMD1.Parameters.AddWithValue(":4", SellPrice)
CMD3.ExecuteNonQuery()
CMD3.Dispose()
Next
'all well save the changes
Mytransaction.Commit()
'close conncetion
Mytransaction.Dispose()
MyConnection.Close()
MyConnection.Dispose()
DGV2.Rows.Clear()
TextBox4.Text = ""
Catch ex As Exception
If Mytransaction IsNot Nothing Then
Mytransaction.Rollback()
End If
If MyConnection IsNot Nothing Then
If MyConnection.State = ConnectionState.Open Then
MyConnection.Close()
End If
End If
MsgBox(ex.Message, MsgBoxStyle.Critical Or MsgBoxStyle.OkOnly)
End Try
End Sub
What is the problem here?
Simple typo. In your CMD3 you're adding all the parameters to CMD1
Hence CMD3 has 5 missing parameters.
How can I automatically refresh and view the new current datagridview after add or delete?
what code should I put after "msgbox" to view the current data?
Private Sub add()
Dim conn As New OleDbConnection
Dim cmd As New OleDbCommand
Dim sSQL As String = String.Empty
Try
conn = New OleDbConnection(Get_Constring)
conn.Open()
cmd.Connection = conn
cmd.CommandType = CommandType.Text
sSQL = "INSERT INTO course ( code, description)"
sSQL = sSQL & " VALUES (#cod, #des)"
cmd.CommandText = sSQL
cmd.Parameters.Add("#cod", OleDbType.VarChar).Value = IIf(Len(Trim(Me.txtcode.Text)) > 0, Me.txtcode.Text, DBNull.Value)
cmd.Parameters.Add("#des", OleDbType.VarChar).Value = IIf(Len(Trim(Me.txtdescription.Text)) > 0, Me.txtdescription.Text, DBNull.Value)
cmd.ExecuteNonQuery()
MsgBox("Data has been save.")
conn.Close()
Catch ex As Exception
MessageBox.Show("Already exist")
End Try
End Sub
You should bind your DataGridView to an appropriate DataSource, e.g. a DataTable.
Then, instead of inserting the data manually in the database, you could use a SqlDataAdapter and the DataTable your DataGridView is bound to.
Here's a simple example:
Dim cons = New SqlConnectionStringBuilder() With
{
.DataSource = "your_server",
.InitialCatalog = "your_db",
.UserID = "your_user",
.Password = "your_password"
}.ConnectionString
Dim con = New SqlConnection(cons)
con.Open()
' create a SqlDataAdapter and provide the SELECT command '
Dim adapter = New SqlDataAdapter()
Dim cb = New SqlCommandBuilder(adapter)
adapter.SelectCommand = New SqlCommand("SELECT code, description FROM course", con)
' the INSERT command can be generated '
adapter.InsertCommand = cb.GetInsertCommand()
' fill a new DataTable with data from database '
Dim dt = New DataTable()
adapter.Fill(dt)
' create a Form with DGV and Insert-Button '
Dim f = New Form()
Dim dgv = New DataGridView() With
{
.DataSource = dt,
.Dock = DockStyle.Fill
}
Dim addButton = New Button() With
{
.Text = "Add new",
.Dock = DockStyle.Bottom
}
Dim i = 0
AddHandler addButton.Click, Function(s, o)
' we insert the new data directly into the DataTable '
dt.Rows.Add(New Object() {"Some","Text"})
' and let the SqlDataAdapter handle the insert '
adapter.Update(dt)
End Function
f.Controls.Add(addButton)
f.Controls.Add(dgv)
f.ShowDialog()
Since the new data is written directly into the DataTable, the DataGridView is updated immediately.
Of course this is even easier when you use TableAdapters.