Question

vb中选中datagrid中某一行，然后点击一个按钮，自动把这一行所有字段值写入指定的文本框中

我用的dategrid+adodc1
或者：做个combox，把某一字段值加入comb列表中，然后选中列表中某一字段值，会把这一列中其他字段值写入指定的文本框当中。

Answer 1

'List+Combo+Check三个样例 说明：此源码是我以前用FlxGd做的，同理可用于datagrid
Option Explicit

Private Sub Form_Load()
Dim x As Integer
With FlxGd
.ColAlignment(-1) = 1 'all Left alligned
For x = 1 To .Cols - 1
.TextMatrix(0, x) = "Col " + Str(x)
Next
For x = 1 To FlxGd.Rows - 1
.TextMatrix(x, 0) = "Row " + Str(x)
Next
.Row = 1
.Col = 1
.CellBackColor = &HC0FFFF 'lt. yellow
End With
Combo1_Load
List1_Load
Check1_Load
End Sub

Private Sub cmdAddRow_Click()
AddGridRow
End Sub

Private Sub cmdDelRow_Click()
DeleteGridRow
End Sub

Private Sub FlxGd_EnterCell()
FlxGd.CellBackColor = &HC0FFFF 'lt. yellow
FlxGd.Tag = "" 'clear temp storage
End Sub

Private Sub FlxGd_LeaveCell()
If FlxGd.Col = 2 Then
FlxGd = Format$(FlxGd, "#") 'alpha-number format
Else
If FlxGd.Col = 3 Then 'this is for Checkboxes
If Check1.Value = 0 Then
FlxGd.Text = "No"
End If
End If
FlxGd = Format$(FlxGd, "0.00")
End If
FlxGd.CellBackColor = &H80000005
End Sub

Private Sub FlxGd_KeyDown(KeyCode As Integer, Shift As Integer)
Select Case KeyCode
Case 46 '<Del>, clear cell
FlxGd.Tag = FlxGd 'assign to temp storage
FlxGd = ""
End Select
End Sub

Private Sub FlxGd_KeyPress(KeyAscii As Integer)
Select Case KeyAscii
Case 13 'ENTER key
Advance_Cell 'advance new cell
Case 8 'Backspace
If Len(FlxGd) Then
FlxGd = Left$(FlxGd, Len(FlxGd) - 1)
End If
Case 27 'ESC
If FlxGd.Tag > "" Then 'only if not NULL
FlxGd = FlxGd.Tag 'restore original text
End If
Case Else
FlxGd = FlxGd + Chr(KeyAscii)
End Select
End Sub

Private Sub FlxGd_Click()
If Combo1.Visible = True Then
Combo1.Visible = False
FlxGd.CellBackColor = &H80000005 'white
Else
If List1.Visible = True Then
List1.Visible = False
FlxGd.CellBackColor = &H80000005
Else
If Check1.Visible = True Then
Check1.Visible = False
FlxGd.CellBackColor = &H80000005
End If
End If
End If
If FlxGd.Col = 1 Then ' Position and size the ListBox, then show it.
List1.Width = FlxGd.CellWidth
List1.Left = FlxGd.CellLeft + FlxGd.Left
List1.Top = FlxGd.CellTop + FlxGd.Top
List1.Text = FlxGd.Text
List1.Visible = True
Else
If FlxGd.Col = 2 Then ' Position and size the ComboBox, then show it.
Combo1.Width = FlxGd.CellWidth
Combo1.Left = FlxGd.CellLeft + FlxGd.Left
Combo1.Top = FlxGd.CellTop + FlxGd.Top
Combo1.Text = FlxGd.Text
Combo1.Visible = True
Else
If FlxGd.Col = 3 Then ' Position and size the CheckBox, then show it.
Check1.Width = FlxGd.CellWidth
Check1.Left = FlxGd.CellLeft + FlxGd.Left
Check1.Top = FlxGd.CellTop + FlxGd.Top
If FlxGd.Text = "Yes" Then
Check1.Value = 1
Else
If FlxGd.Text = "No" Then
Check1.Value = 0
End If
End If
Check1.Visible = True
End If
End If
End If
End Sub

Private Sub Check1_Click() ' Place the selected Yes/No into the Cell and hide the CheckBox.
If FlxGd.Col = 3 Then
If Check1.Value = 1 Then
FlxGd.Text = "是"
Else
If Check1.Value = 0 Then
FlxGd.Text = "否"
End If
End If
Check1.Visible = False
End If
End Sub

Private Sub Check1_Load() ' Load the Checkbox.
Check1.Visible = False
Check1.Value = False
Check1.Caption = "请选择"
Check1.Width = FlxGd.CellWidth
End Sub

Private Sub List1_Load() ' Load the ListBox's list.
List1.Visible = False
List1.Width = FlxGd.CellWidth
List1.AddItem ""
List1.AddItem "小狗"
List1.AddItem "小猫"
List1.AddItem "金鱼"
List1.ListIndex = 0
End Sub

Private Sub List1_Click() ' Place the selected item into the Cell and hide the ListBox.
If FlxGd.Col = 1 Then
FlxGd.Text = List1.Text
List1.Visible = False
End If
End Sub

Private Sub Combo1_Click() ' Place the selected item into the Cell and hide the ComboBox.
If FlxGd.Col = 2 Then
FlxGd.Text = Combo1.Text
Combo1.Visible = False
End If
End Sub

Private Sub Combo1_Load() ' Load the ComboBox's list.
FlxGd.RowHeightMin = Combo1.Height
Combo1.Visible = False
Combo1.Width = FlxGd.CellWidth
Combo1.AddItem "1"
Combo1.AddItem "2"
Combo1.AddItem "3"
End Sub

Private Sub FlxGd_MouseDown(Button As Integer, Shift As Integer, x As Single, y As Single)
Dim Row As Integer, Col As Integer
Row = FlxGd.MouseRow
Col = FlxGd.MouseCol
If Button = 2 And (Col = 0 Or Row = 0) Then
FlxGd.Col = IIf(Col = 0, 1, Col)
FlxGd.Row = IIf(Row = 0, 1, Row)
PopupMenu MnuFGridRows
End If
End Sub

Private Sub MnuFGridAddRow_Click()
AddGridRow
End Sub

Private Sub AddGridRow()
With FlxGd
.Rows = .Rows + 1
.Row = .Rows - 1
.TextMatrix(.Row, 0) = "Row " + Str(.Row)
End With
End Sub

Private Sub mnuDeleteGridRow_Click()
DeleteGridRow
End Sub

Private Sub DeleteGridRow()
Dim Row As Integer, n As Integer, x As Integer
With FlxGd
If .Rows > 2 Then 'make sure we don't del a row
Row = .Row
For n = 1 To .Cols - 1
If .TextMatrix(Row, n) > "" Then
x = 1
Exit For
End If
Next
If x Then
n = MsgBox("Data in Row" + Str$(Row) + ". Delete anyway?", vbYesNo, "Delete Row...")
End If
If x = 0 Or n = 6 Then 'no exist. data or YES
For n = .Row To .Rows - 2 'move exist data up 1 row
For x = 1 To FlxGd.Cols - 1
.TextMatrix(n, x) = .TextMatrix(n + 1, x)
Next
Next
If Row = .Rows - 1 Then 'set new cursor row
.Row = .Rows - 2
End If
.Rows = .Rows - 1 'delete last row
End If
End If
End With
End Sub

Private Sub End_Click()
End
End Sub

Private Sub Advance_Cell() 'advance to next cell
With FlxGd
.HighLight = flexHighlightNever 'turn off hi-lite
If .Col < .Cols - 1 Then
.Col = .Col + 1
Else
If .Row < .Rows - 1 Then
.Row = .Row + 1 'down 1 row
.Col = 1 'first column
Else
.Row = 1
.Col = 1
End If
End If
If .CellTop + .CellHeight > .Top + .Height Then
.TopRow = .TopRow + 1 'make sure row is visible
End If
.HighLight = flexHighlightAlways 'turn on hi-lite
End With
End Sub

Answer 2

vb中选中datagrid中某一行，然后点击一个按钮，自动把这一行所有字段值写入指定的文本框中
回答这个问题：
Private Sub Command1_Click()
Dim k As Long
For k = 0 To dategrid1.Columns.Count - 1
text1.text=text1.text & "___" & dategrid1.Columns.Item(k).Text
Next
End Sub

后面问题类似，自己改改吧