vb.net 如何在 datagridview 中执行 textChanged 事件？
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How to do textChanged event in datagridview?
提问by slek
I've been fixing the textChanged like event for my datagridview but I was not able to get the result that I wanted. The dataGridView1 must filter the content of dataGridView2 whenever I changed a text on its cell/s.
我一直在为我的 datagridview 修复 textChanged 之类的事件，但我无法获得我想要的结果。每当我更改其单元格上的文本时，dataGridView1 必须过滤 dataGridView2 的内容。
This can filter the content of my dataGridView2 but before that I must click the cursor outside the dataGridView1/press Tab. Here is my code:
这可以过滤我的 dataGridView2 的内容，但在此之前我必须单击 dataGridView1 外的光标/按 Tab。这是我的代码：
Private Sub DataGridView1_CellEndEdit(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles DataGridView1.CellEndEdit
Dim con1 As OleDbConnection = con
con1.Open()
Dim dt As New DataTable
Dim _command As OleDbCommand = New OleDbCommand()
_command.Connection = con1
_command.CommandText = "SELECT * FROM table_name WHERE " & likeContent & ""
dt.Load(_command.ExecuteReader)
Me.dgv.DataSource = dt
con1.Close()
End Sub
"likecontent" is where I store the text on my dataGridView1.
“likecontent”是我在 dataGridView1 上存储文本的地方。
How will my dataGridView2 be updated just by textChanged like event from my dataGridView1?
如何仅通过 dataGridView1 中的 textChanged 事件来更新我的 dataGridView2？
回答by ???ěxě?
You must use the CellValueChangedEventand the CurrentCellDirtyStateChangedevents for this.
为此，您必须使用CellValueChangedEvent和CurrentCellDirtyStateChanged事件。
Private Sub dgv_CellValueChanged(sender As Object, e As DataGridViewCellEventArgs) Handles dgv.CellValueChanged
Dim con1 As OleDbConnection = con
con1.Open()
Dim dt As New DataTable
Dim _command As OleDbCommand = New OleDbCommand()
_command.Connection = con1
_command.CommandText = "SELECT * FROM table_name WHERE " & likeContent & ""
dt.Load(_command.ExecuteReader)
Me.dgv.DataSource = dt
con1.Close()
End Sub
Private Sub dgv_CurrentCellDirtyStateChanged(sender As Object, e As EventArgs) Handles dgv.CurrentCellDirtyStateChanged
If dgv.IsCurrentCellDirty Then
dgv.CommitEdit(DataGridViewDataErrorContexts.Commit)
End If
End Sub
