How To Check If Current Row Is New Row In Datatable
Mar 18, 2009how to check if current row is new row in datatable?i'm trying to have some fields non-updataeble but can be inserted when it is a new record.
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VS 02/03 Get The Current Datagrid Data In A Datatable
Feb 12, 2010I have a form developed using the Dataform wizard (VS 2003). The Form shows Master-Detail data. The details are showen in a Datagrid. The form automatically loads the data in the Form_load event. Now I want to store the data from the datagrid to a datatable. I am using following code to get the details showen in the datagrid into a dataview. The objdsInvoice is the dataset that holds the Invoice And Invoice_Item data.
Dim DV As DataView
Dim tempDT As DataTable
tempDT = objdsInvoice.Tables("INVOICE_ITEM").Copy
[Code]....
Is there any better way to get the datagird values that are currently displayed into a datatable. The datagrid is bound to the details table in the Master-detail type dataset.
VS 2008 Refreshing The Datatable With Current Data From The DB?
May 7, 2010I load up a datatable - bind it to a binding source and a binding navigator - and lots of textboxes on the screen bound to that as well.When I get a concurrency violation - another user has already changed my vendor, let's say - what is the best method to go about refreshing the datatable with current data from the DB?
View 10 RepliesCheck If Current Application Is Running?
Dec 21, 2009I have created a control and have some code in constructor. This code should only run when application is running, but it also runs when i load form. Can I have some check if application is running or not?Faisal Saleem (Software Engineer)
View 6 RepliesCheck If Current ID Exits In That Table Or Not?
Sep 22, 2009I am using VB.net and Sql server 2005.
I have GridView in Application where I have my CPUserID. There can be thousands records in GridView with different CPUserIDs.
Now I have a button "Allocate Token". But before allocating the token I want to check in my Token Table that if that CPUserID has already exists in table it should not allow user to allocate token and will return some message for that user.
For Each curRow As GridViewRow In GridView1.Rows
Dim cpuserid As Label = CType(curRow.Cells(1).FindControl("lblCPUserID"), Label)
Next
[Code].....
Check If The Current Date Is True Or Not?
Jul 28, 2011I am working for application register form and I would like to know when the user opens the register form I need to check if the current date is true or not and when the user tries to change the system date he should pop up message.So I would like to refresh the form for every second and find whether he has changed the date or not. How do I do that?
Here is my code:
btnRegister.Enabled = False
Dim oReg As Microsoft.Win32.RegistryKey
oReg = Microsoft.Win32.Registry.CurrentUser.OpenSubKey("Software", True)
[Code]....
Function That Would Check The Current Date?
Jun 2, 2010I would need a function that would check the current date and in the end return the date of Monday this week. So say we have 02/06/10 today so I'd like that date or rather week_starting function to show 01/06/10 for the whole week. The formatting isn't important.
View 12 RepliesCheck Current System Date Format?
Jun 22, 2012How can i check the system date format? Tried with the code below, but when i change my system's date format to another date format to test the code, it's still showing the date format before changed!
System.Globalization.CultureInfo.CurrentCulture.DateTimeFormat.ShortDatePattern()
VS 2010 Check A DataGridView Column Does Not Have Current Value?
Jan 4, 2011I have a function that gets information off a webpage and adds it to a datagridview that has a few columns.
Is there a way to make sure the item im about to add is not within the datagridview recordset already?
i tried this but it didnt work
If DataGridView1.Rows.Contains(element.GetAttribute("data-id")) = False Then
End If
Asp.net - Loop For Each Day In The Current Month And Check Rows For A Match?
Dec 12, 2011How can I write a loop to run for each day in the current month and then check to see if the Dataset has a record that matches one of those days and take an action?
For Day As Integer = 1 To DaysInTheMonth
For Each row In MyRows
If row.Date.Day = Day Then[code]....
This generates too many rows in the table I have it building. Basically, every day gets as many rows as there are that contain data.I'm building a HTML table that gets mapped into a chart using jquery so I need a for everyday of the month.
C# - Check If HttpContext.Current.Response Have An Existing Header?
Jun 19, 2012I was working on a scenario where I have to add header to the Response Header.
I added a Response Header like this:- HttpContext.Current.Response.AddHeader("key1", "value1")
After some functional flow I required to add value to same "key1": HttpContext.Current.Reponse.AddHeader("key1, "value2")
thus value in Response Headers look like this:- key1 : value1, value2
I want to avoid the value2 addition to the same keyword key1.
I tried:-
If HttpContext.Current.Response.Headers("key1") Then
HttpContext.Current.Reponse.AddHeader("key1, "value2")
EndIf
But I got the error: This operation requires IIS integrated pipeline mode at HttpContext.Current.Response.Headers("key1")
I have IIS6 running. This [URL] says that it doestn't works if its not IIS7
Check Version Of A Software Installed Verses A Current?
Jan 11, 2011Is there a way to have a form event check the version of say Adobe Flash/Shockwave/Reader on the PC and then check what's available on the web?
View 3 RepliesVS 2008 Check If Current User Has Administrator Rights?
Sep 1, 2009I've been looking around for a way to check if the current user has Administrator rights but the information seems to be quite disperse and not exactly
View 3 RepliesVS 2008 Check If DateTimePicker Control's Value Is Before The Current Date?
Jun 1, 2012If DateTimePicker1.Value.Year <= DateTimePicker2.Value.Year Then 'dtp2 = expiry date
If DateTimePicker1.Value.Month <= DateTimePicker2.Value.Month Then
MsgBox("Expiry Date Correct!")
Else
MsgBox("Expiry Date incorrect!")
End If
End If
How would I get it to check the date? Datetimepicker1 is the current date, while Datetimepicker2 is the expiry date.
Check If DataTable Has Row?
May 12, 2009I have a function that search for a keyword and then return DataTable. I want to check if there rows inside because sometimes there's no query found.
'which one shoud I use ?
If dtDataTable Is Nothing Then
'some code
[Code]....
Check The Current User Document And Setting Using Visual Basic?
Sep 12, 2010i realise that currently there is not built-in class for the checking of the current user folder in visual basic .net. anyone can advised the workaround for this. E.g. if user123 login to the machine, the code will return "c:useruser123"
How To Check If A Datatable Is Null Or Nothing .net
Apr 26, 2012How can I check if a datatable has never been set ? or Null or Nothing ? I don't mean empty Datatable ... For example,
[Code]...
Check All Checkboxes In A DataTable Column?
Jul 25, 2011I use ADO.Net to call a stored procedure that retrieves data from our database.I put that data into a data table using this code below:' set Ready ResultIDs in databaseDim dt As New DataTabledt.Load(cmd.ExecuteReader)
View 3 RepliesCheck If Row Exist At Position In Datatable?
Jun 4, 2011i have a code where I dynamically generate the columns name and bind it it datatable. now I am iterating thru loop for each column and fill the datatable. My Problem is when I fill for first column row is already added to the position(e.g 0,1). if row at some position already exist in datatable I should not write
dr = dt.NewRow()
dt.Rows.Add(dr)
Check Rowstate In GetChanges DataTable?
Mar 10, 2010i getchanges from dataSet
when i am iterating through the rows I would like to check rowstate to see if row was added or modified. It says I cant check through an instance and the expression will be ignored..
Dim changes As New DataSet
changes = dsRates.GetChanges()
Dim count As Integer = 1
[Code].....
Updating A Datatable And Also Validating A Check Box
Apr 6, 2011I have a datagridview that has a checkbox. That checkbox will designate if a day is a "Holiday" or not. When then user clicks on my save event, I want my sub to check to see if that box is checked and appending the data to a table in my database.
View 15 RepliesUpdating A Datatable And Also Validating A Check Box?
Apr 6, 2011I have a datagridview that has a checkbox. That checkbox will designate if a day is a "Holiday" or not. When then user clicks on my save event, I want my sub to check to see if that box is checked and appending the data to a table in my database.
View 1 RepliesVS 2010 Check Whether A DataTable Is Populated?
May 15, 2012i defined a list of DataTables
Dim PreSubTables As New List(Of DataTable)()
Then I parse some source files and depending on the data, possibly none of the tables in the list PreSubTables2 might be populated, so it's just an empty list. Later on when i refer to the first table in the list , I get "index out of range error"
If (PreSubTables(0).Rows.Count > 0) Then ...
' just dealing with the first table: PreSubtables(0)
For ii = 0 To (PreSubTables(0).Rows.Count - 1)
[Code]....
I'm just trying to come up with a line that checks whether the(at least the first)Table in the list is populated, before I can print it out or do other things.
Syntax Error Null Check Datatable / Gridview Asp.net Vb?
May 21, 2010I have this code:Dim Result As New DataTable DataAdapter.Fill(Result)
'bind data to visible surname/name grid If Result.Rows.Count = 0 Then NoInputBottom.Text = "No Results. Please widen your search criteria and try again" NoInputTop.Text = "No Results. widen your search criteria and try again" Else
GV.DataSource = Result
GV.DataBind()
End If
I have also tried moving the check to the gridview like so:
If GV.Columns.Count = 0 Then
NoInputBottom.Text = "No Options Selected: Please select your search criteria and try again"
NoInputTop.Text = "No Options Selected: Please select your search criteria and try again"
End If
When I run the code. the noinput labels do not have value, the null check seems to be failing? Please can you tell me how to display a message if the search returned no reults.
Excel To Check The Date Value In A Cell And Compare It To Current Date?
Oct 18, 2009how can I create following thing with Visual basic?I would like my excel to check the date value in a cell and compare it to current date and if the value in the cell is older than 2 months compared to current date it would change the cell's colour.
View 1 RepliesAsp.net - Clicking Link To Replace Current Frameset Contained In Current Window
Dec 28, 2011I have following link in a.aspx file:
<a href="a.htm" target="iframe">A</a>
I want to set link from a.aspx.vb page according to what person is viewing the page. How can i change this so that if user clicks on link it will replace current frameset contained in current window with a url provided according to user?
Or in another way:
How will i replace href code in aspx page by giving it value from aspx.vb page?
Get Current Enumerator (iterator) In LINQ Query / Like A Current Index In For Loops
Sep 20, 2011Is that possible to get current Enumerator (...or iterator? Don't know which tern is the correct one) in a LINQ query ? For example, I try to create a XML output (via LINQ to XML) of all currently loaded assemblies. [code] is it possible to somehow get current "index" (counter?) from LINQ's Selects? I would like to use it in XML. [code]
View 1 RepliesKeyup Event - Get The Current Value Of The Current Row And Column
Sep 12, 2011I have a datagridview having 3 columns (qty,scraft factor,actuall qty). What I want is if the user encode 50 in qty and 2 in scraf factor, actuall qty will automatically computed based on qty multiply by 2. I was using keyup event. Now I am using endedit to get the current value of the current row and column, now the problem is if the amount to be encoded is more than one digit it will not accept because of endedit. What event do I have to used? or any solution with this scenario.
[Code]...
Loop Datatable And Select Checkboxlist Item Based On The Datatable Field Values
Aug 18, 2011I am trying to display value of the field ("UserID") for every row exists in datatable to checkboxlist(make the checkboxlist item selected).
I used for loop, but only the field value from last row of RoleUsers table is selected in the checkboxlist.
Here is my code
Private Sub DisplayRoleUser()
Dim conn As SqlConnection
Dim cmd As SqlCommand
[Code].....
VS 2005 Datatable Vs Dataview - Apply A Filter To The Defaultview.rowfilter Property Of That Datatable
Mar 15, 2010I have a datatable and I apply a filter to the defaultview.rowfilter property of that datatable. If I then loop through the rows collection of the datatable, will I only be able to see those rows that the filter applies to, or will it loop through all the rows?
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