[英]open selected row in datagridview to edit in Another form
我正在使用vb.net設計器連接到訪問數據庫。 在我的Form1上我有一個DataGridView和兩個按鈕添加和編輯我使Form2將數據添加到數據庫並工作正常... Imake Form3與相同的form2內容現在我需要當我在DataGridView和Clic編輯按鈕中選擇行時所選的數據在form3上的行顯示為編輯它
Public Class Form1
Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load
Me.SalesTableAdapter.Fill(Me.OrdersDataSet.sales)
Me.DateTimePicker1.Value = Date.Today
End Sub
Private Sub DateTimePicker1_ValueChanged(sender As Object, e As EventArgs) Handles DateTimePicker1.ValueChanged
SalesBindingSource.Filter = String.Format("date = '{0}'", DateTimePicker1.Value.ToShortDateString())
End Sub
Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
Form2.Show()
End Sub
Private Sub Button2_Click(sender As Object, e As EventArgs) Handles Button2.Click
Form3.Show()
End Sub
Private Sub Label1_Click(sender As Object, e As EventArgs) Handles Label1.Click
End Sub
Private Sub SalesDataGridView_CellContentClick(sender As Object, e As DataGridViewCellEventArgs) Handles SalesDataGridView.CellContentClick
End Sub
End Class
您需要以模態/對話方式處理此問題。 您只需要一個表單來添加和編輯 。
添加/編輯表單
將參數化構造函數添加到表單。
Public Sub New(row As DataRowView)
Me.InitializeComponent()
'Me.ctlAge: NumericUpDown control.
'Me.ctlBirthday: DateTimePicker control.
'Me.ctlName: TextBox control.
If (row Is Nothing) Then
'Add mode, set default values:
Me.ctlAge.Value = 0
Me.ctlBirthday.Value = Date.Now
Me.ctlName.Text = String.Empty
Else
'Edit mode, set current values:
Me.ctlAge.Value = CDec(row.Item("AGE"))
Me.ctlBirthday.Value = CDate(row.Item("BIRTHDAY"))
Me.ctlName.Text = CStr(row.Item("NAME"))
End If
End Sub
您還需要一個接受按鈕和一個取消按鈕。
Friend Sub btnAcceptClicked(sender As Object, e As EventArgs) Handles btnAccept.Click
Me.DialogResult = Windows.Forms.DialogResult.OK
Me.Close()
End Sub
Friend Sub btnCancelClicked(sender As Object, e As EventArgs) Handles btnCancel.Click
Me.DialogResult = Windows.Forms.DialogResult.Cancel
Me.Close()
End Sub
主要形式
添加方法:
Private Sub btnAddClicked(sender As Object, e As EventArgs) Handles btnAdd.Click
Try
Using f As New AddOrEditForm(CType(Nothing, DataRowView))
If (f.ShowDialog() = Windows.Forms.DialogResult.OK) Then
Dim view As DataView = TryCast(Me.SalesDataGridView.DataSource, DataView)
If (view Is Nothing) Then
Throw New InvalidCastException()
End If
Dim viewRow As DataRowView = view.AddNew()
viewRow.EndEdit()
viewRow.Item("AGE") = f.ctlAge.Value
viewRow.Item("BIRTHDAY") = f.ctlBirthday.Value
viewRow.Item("NAME") = f.ctlName.Text
viewRow.EndEdit()
End If
End Using
Catch ex As Exception
MessageBox.Show(ex.Message)
End Try
End Sub
編輯方法:
Private Sub btnEditClicked(sender As Object, e As EventArgs) Handles btnEdit.Click
Try
Me.SalesDataGridView.EndEdit()
If (Me.SalesDataGridView.SelectedRows.Count > 0) Then
Dim gridRow As DataGridViewRow = Me.SalesDataGridView.SelectedRows(0)
Dim viewRow As DataRowView = TryCast(gridRow.DataBoundItem, DataRowView)
If (viewRow Is Nothing) Then
Throw New InvalidCastException()
End If
Using f As New AddOrEditForm(viewRow)
If (f.ShowDialog() = Windows.Forms.DialogResult.OK) Then
viewRow.BeginEdit()
Try
viewRow.Item("AGE") = f.ctlAge.Value
viewRow.Item("BIRTHDAY") = f.ctlBirthday.Value
viewRow.Item("NAME") = f.ctlName.Text
viewRow.EndEdit()
Catch ex As Exception
viewRow.CancelEdit()
Throw ex
End Try
End If
End Using
End If
Catch ex As Exception
MessageBox.Show(ex.Message)
End Try
End Sub
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