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[英]Saving of Numeric with decimal to txt File from datagridview in vb.net
[英]partial .txt file to datagridview vb.net
我有一個用戶界面表單,可讓您將文本文件上傳到datagridview,如下所示
Sub Datagrid()
Dim sw = System.Diagnostics.Stopwatch.StartNew()
Using stream As System.IO.FileStream = System.IO.File.OpenRead(TextBox1.Text)
Using reader As New System.IO.StreamReader(stream)
Dim line As String = reader.ReadLine()
While (line IsNot Nothing)
Dim columns = line.Split(";")
line = reader.ReadLine()
Dim index = Me.DataGridView1.Rows.Add()
Me.DataGridView1.Rows(index).SetValues(columns)
End While
End Using
End Using
sw.Stop()
End Sub
好吧,現在我的問題是我不想將完整的txt文件放在N行中的datagridview中。是否可以這樣做? 就像創建querytabel並選擇固定值一樣?
pe,在第5行中,總是有文本“ Values:”。 之后是否可以選擇所有行以放入datagridview? 我到處都用谷歌搜索,但是什么也沒找到。 而且沒有“示例”代碼給我一個開始。 謝謝你們 !
Dim n As Integer = 5
Dim lines As IEnumerable(Of String) = IO.File.ReadAllLines("textbox1.text").Skip(n)
'Gets every line after a certain line count
'Create a new datatable and add some columns
Dim dt As New DataTable
dt.Columns.AddRange((From columnIndex As Integer In Enumerable.Range(1, lines.First.Split(";"c).Count) Select New DataColumn("Column" & columnIndex.ToString())).ToArray())
'Add each line as a row to the datatable
For Each line As String In lines
dt.Rows.Add(line.Split(";"c))
Next
'Set the datasource of the datagridview
MyDataGridView.DataSource = dt
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