[英]validation for specific cell in DataGridView 1
将值形式的文本框传递到DataGridView时,如何验证DataGridView行的详细信息是否已经存在?
这是我的功能: argAccount
和argPortfolio
是文本框值
Function fnValidateAccountPortfolio(ByVal argAccount As String, ByVal
argPortfolio As String) As Boolean
Try
For Each row As DataGridViewRow In Form1.DataGridView1.Rows
If Not row.IsNewRow Then
MessageBox.Show(row.Cells(0).Value.ToString & " Is Already
Exists", "Error", MessageBoxButtons.OK, MessageBoxIcon.Warning)
End If
Next
Catch ex As Exception
Exit Function
End Try
End Function
Private Sub BtnSave_Click(ByVal sender As System.Object, ByVal e As
System.EventArgs)
Handles BtnSave.Click
If fnValidateAccountPortfolio(txtAccount.Text, txtPortfolio.Text) = False
Then
MessageBox.Show("Successfully Saved", "Save", MessageBoxButtons.OK,
MessageBoxIcon.Information)
End If
end sub
根据我提供的链接,这是您要找的东西吗?
Function fnValidateAccountPortfolio(ByVal argAccount As String, ByVal argPortfolio As String) As Boolean
Dim found As Boolean = False
For Each Row As DataGridViewRow In DataGridView1.Rows
For Each cell As DataGridViewCell In Row.Cells
If Not (cell.Value Is Nothing) Then
If (CStr(cell.Value).Trim() = argAccount OR CStr(cell.Value).Trim() = argPortfolio) Then
MessageBox.Show(cell.Value.ToString()) ' You could show the value here just to validate but remove it later.
found = True
Exit For
End If
End If
Next
If (found) Then
Exit For
End If
Next
Return found
End Function
因此,您将像这样调用此函数
if (fnValidateAccountPortfolio("1001","PortfolioHere")) Then
MessageBox.Show("Entry exist already in the DataGrid!!!")
Else
MessageBox.Show("Successfully Saved", "Save", MessageBoxButtons.OK, MessageBoxIcon.Information)
End if
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