How To Paint DGV Cells When Value Lower Than System Date
Jun 16, 2010
I wanna paint my DGV cells. One cell has got a date. I wanna compare that cell and system date. How can I do that? And I wanna paint cell that date is less than system date. I wanna codes in VB .NET 2008? I tried this but it paints all rows.
Private Sub Button6_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button6.Click
If TextBox3.Text = "" Then
Else
If TextBox3.Text < Date.Today Then
DataGridView1.RowsDefaultCellStyle.BackColor = Color.Blue
End If
End If
I wanna cell painting or row painting that value is lower than system date.
I have a DataGridView (not data bound, not editable) that displays a bunch of data. I want to draw rectangles around some of the blocks of cells to set them apart visually. For example, I want to draw a red border around the block of cells from row 3 colum 2 to row 6 column 3 so that there is a red rectangle around the 8 cells.I've found how to paint rectangles around individual cells or rows, but I can't work out how to do it for a block of cells.
My application takes the currently logged-in user and uses an a DirectoryServices.DirectorySearcher to pull a few additional detail about them (some properties we have stored in a few custom AD fields, as well as their email address). This works great, though I've always though it was a little slow - my single-threaded code could only make about 2-3 requests/second to AD.
The real problem came when I moved this code to a web server. With multiple simultaneous users, the number of requests/second jumps greatly, and the LSASS.EXE process pegs on my server. I've checked the domain controllers, and they're just fine - the bottleneck is clearly on the application side. I suspect that what's slowing my down is the NTLM/Kerberos challenge/response, and the number of simultaneous requests pegs even the multi-core processor.
Our network policy doesn't allow anonymous reads from AD, so that choice is out. Also, I've tried every member of "AuthenticationTypes" (in the example, I'm using .FastBind), but they all seem to have about the same throughput rate with the same load on the processor.how I might work around this restriction and lower my demands on the processor? Here is the code I'm using - pretty straightforward:
Dim sPath As String = "LDAP://" & stringUserDN Dim entry As New DirectoryEntry(sPath) entry.AuthenticationType = AuthenticationTypes.FastBind[code]......
i want to set the system date of my a client pc based on the system date where the sql server reside.In short i want to sysncronize the date between the client and server.I have a working code in vb6 but i dont know how to do it in vb 2008.
dim RstDate As ADODB.Recordset Set RstDate = New ADODB.Recordset RstDate.Open "SELECT GETDATE() as ServerDate ", CnAP
I always get this error during the Paint event: System.AccessViolationException was unhandled. The weird thing is that it doesn't happen the first time it goes through.
Here's the code.
Friend CustomFont As Font = GetCustomFont()
Private Function GetCustomFont() As Drawing.Font Try Dim PFC As Drawing.Text.PrivateFontCollection
[CODE]...
Symbols is just a 2 dimensional array of characters.
I tried to convert the date format in all cells DGV in column(7) from "dd-MM-YYYY" to "yyyy-MM-dd". So I create this code but I don't know how to complete For Each row As DataGridViewRow In Form7.DataGridView1.Rows If row.Cells(7).Value = "dd-MM-YYYY" Then ........ End If
I'm trying to write a program which compares the difference between any date in the past and the system date, showing how many days have elapsed since that date.This is what I've got so far:
Code: Public Class Form1 Private Sub TextBox2_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) End Sub
[code]....
That's what it looks like so far. I was wondering how you can automate the top label so it automatically comes up with the date when the program is run.Plus, I need to know how to display the dates difference (how many days have elapsed between the system date and the user's chosen date) in the bottom label.
I'm trying to compare the modify date of a file vs the current system date. I've found an MSDN article describing how to get the modify time of a file:
Dim infoReader As System.IO.FileInfo infoReader = My.Computer.FileSystem.GetFileInfo("C: estfile.txt") MsgBox("File was last modified on " & infoReader.LastWriteTime)
This gest the Date and Time, but I want just the Date not the time.
How can microsoft paint(or any other painting software) be included in a VB.net project? I need to used its functionalities to maipulate jpg and movie file. Is there any ways this can be done on VB.net (or Visual Studio).
i have date fields i want to validate if the date is greater than system date it should prompt user and force user to enter a correct date. but when the user wants to cancel or close that particular form without correcting the date he should be able to cancel the form. in my case it does not happen you will have enter the correct date before you can even cancel when i use Lostfocu,Leave,Changevalue
what can i do sample code below
Private Sub dtMarried_LostFocus(ByVal sender As Object, ByVal e As System.EventArgs) Handles dtMarried.LostFocus If fn_checkdate(Me.dtMarried.Value) = True Then
My main goal is to have an excel spreadsheet that automatically plots the overall success of my stock portfolio over time (% change over time). I've been able to incorporate stock data into my spreadsheet by linking it to the web, but the trouble is the spreadsheet will keep no history of what the previous stock values were, so I can't graph how things change over time. This sounds like it might be too complicated to be built in to excel, so I was wondering if anyone knew how to program this in Visual Basic. Maybe something like this.... If refresh then new cell plus new time stamp. Another possibility would be to have a whole bunch of cells that refresh only once but at longer and longer intervals, e.g.,
I have a DataTable and want to connect the cells of one of its columns to cells in some other DataTables.
For example:
DataTable1.Rows(0).Item(2) is connected to DataTable2.Rows(4).Item(6) DataTable1.Rows(1).Item(2) is connected to DataTable4.Rows(2).Item(3) DataTable1.Rows(2).Item(2) is connected to DataTable3.Rows(11).Item(4) ...
I am working on a project inwhich I want same date format in all project forms. I want to use a form for setting/resetting date format for whole project. whenever I will change date format in this settings form, there should be this new date format available in all forms. how can I implement this?
My app uses about 14 date as the user progresses through and the dates are used to make a number of calculations. In the process of debug I set the dates in Properties so I would not have to enter them each time with all the other inputs to test the math and out put values.
"Short Date format " --> 'dd/MM/yyyy' at Regional setting "Short Date format" --> 'ddd/MM/yyyy' at Regional setting"Short Date format" --> 'MM/dd/yyyy' at Regional setting.
I want to know format --> 'dd/MM/yyyy' or 'ddd/MM/yyyy'.
I am trying to change the PC's System Date/Time using the following code. Everything works but the Hour. The Hour seems to change to 9:00 AM no matter what value st.hour is set to.
I have also tried:
<DllImport("kernel32.dll", setLastError:=True)> _ Public Shared Function SetSystemTime(ByRef theDateTime As SYSTEMTIME) As Boolean End Function
We have different system date needs on different computers.
An application is using the following to get the current date[code]...
Unfortunately, it is NOT an option of changing the date format on the PC permanently. Is there a way to force the currDate to be retrieved in YYYY-MM-DD "date" format?
I am working on a business related program, so I need to know if system date is correct -synced- with remote server. How do you do that in vb .NET winforms?
P.S: In addition, is there any way to raise some event when system clock changed to prevent hacks? I don't want users to change local date after logging in their account.
I'm using the ASP.Net Membership system but I'm having an issue with the LastActivityDate for the users in the database. For some users, their last activity date is in the future...
