VB.Net Select 来自datagridview的行并单击更新按钮

Question

我需要帮助以另一种形式更新我的 datagridview。

我想要做的是 Select 来自 datagridview 的特定行，然后单击下面的更新按钮，它应该提示另一个表单并显示该行上的所有信息。 然后我可以通过替换显示的文本框中的值/文本来更新行。

我的 gridview 从 CSV 文件加载信息如下

Private Sub ReadCSV()

    gridQuotations.Rows.Clear()
    Dim filePath As String = "C:\Users\Administrator\Desktop\Quotation List.csv"
    Dim TextLine As String = ""
    Dim SplitLine() As String

    If System.IO.File.Exists(fName) = True Then
        Using objReader As New System.IO.StreamReader(fName, Encoding.ASCII)

            Do While objReader.Peek() <> -1
                TextLine = objReader.ReadLine()
                SplitLine = Split(TextLine, ",")
                Me.gridQuotations.Rows.Add(SplitLine)
            Loop
        End Using
    Else
        MsgBox("File Does Not Exist")
    End If

End Sub

以下是我当前的更新按钮代码，我知道它不正确，但我需要帮助。

Private Sub btnUpdate_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnUpdate.Click

    Try

        Me.gridQuotations.EndEdit()

        If (Me.gridQuotations.SelectedRows.Count > 0) Then

            Dim gridRow As DataGridViewRow = Me.gridQuotations.SelectedRows(0)
            Dim viewRow As DataRowView = TryCast(gridRow.DataBoundItem, DataRowView)

            If (viewRow Is Nothing) Then
                Throw New InvalidCastException()
            End If

            Using f As New formQuotation(viewRow)
                If (f.ShowDialog() = Windows.Forms.DialogResult.OK) Then
                    viewRow.BeginEdit()
                    Try
                        
                        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