Hi I try to delete system Temp file using this following method. Public Sub DeleteTempFile() Dim sTempFileName As String For Each sTempFileName In Directory.GetFiles(GetTempDirectory()) System.IO.File.Delete(sTempFileName) End Sub Function GetTempDirectory() As String Return Environment.GetEnvironmentVariable("TEMP") End Function But when i delete i get "IOException wad unhandled" error. That error messge is: "The process cannot access the file 'C:\Documents and Settings\Administrator\Local Settings\Temp\29.tmp' because it is being used by another process." Can anybody help me solution to solve this problem. by Yusuf
How can validate cell in datagridview Vb.net Hi , Am using this following code my cell validating,This code if user leave empty row or if row got focus at empty cell it will prompt messagebox until user enter value. but i need if user want to continue with empty value it allow to add new row or go to other tab. Please help me... TIA. By Yusuf. Private Sub dgvHeaderRemarks_CellValidating(ByVal sender As System.Object, ByVal e As System.Windows.Forms.DataGridViewCellValidatingEventArgs) Handles dgvHeaderRemarks.CellValidating If dgvHeaderRemarks.Columns(e.ColumnIndex).Name = "Remarks" Then If e.FormattedValue IsNot Nothing AndAlso _ String.IsNullOrEmpty(e.FormattedValue.ToString().Trim) Then 'dgvSupportingDocument.CurrentRow.Cells(1).Selected = True MessageBox.Show("HeaderRemarks Field cannot be empty.Please use delete row.", "HeaderRemarks", MessageBoxButtons.OK, MessageBoxIcon.Exclamation) dgvHeaderRemarks.CancelEdit() e.Cancel = True End If End If End Sub
Hi Sabir, I have one more doubt in datagridview cell validating.I need to validate empty row.If user leave empty row i need to prompt messge to delete or enter value. I am using this following code for my cell validation.But,is not set for my project. Please help me. Code is: If dgvHeaderRemarks.Columns(e.ColumnIndex).Name = "Remarks" Then 'If e.FormattedValue IsNot Nothing Or _ If String.IsNullOrEmpty(e.FormattedValue.ToString().Trim) Then MessageBox.Show("HeaderRemarks Field cannot be empty.Please use delete row.", "HeaderRemarks", MessageBoxButtons.OK, MessageBoxIcon.Exclamation) dgvHeaderRemarks.CancelEdit() e.Cancel = True End If End If How can solve this problem. TIA