I have the following code to bind data to my form controls:
dateFromDate.DataBindings.Add("Value", dvUpdateCME, "From Date")
dateToDate.DataBindings.Add("Value", dvUpdateCME, "To Date")
[code].....
How can I filter data from dataview by Date Like 12-05-2010 to 20-11-2010
View 1 RepliesNew to XML. I have a 3rd party webservice that supplies an XML document that I have to update the element values and pass back. The core issue issue is I get an NullReferenceException error when calling the node.RemoveAll() method in the code below. I'm calling the RemoveAll() method because each element has the xsi:nil attribute when it is supplied to me, and if I don't remove it before updating the element value, the XML won't validate by the webservice.The XML document supplied by the 3rd party webservice is as follows:
<?xml version="1.0" encoding="utf-16"?>
<TaskData xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns="http://schema.sample.com/application/1/520800B">
<Global>
[code]....
I've seen have used the XmlNamespaceManager, but I haven't been able to make it work. This xml document has a namespace specified for the TaskData element, and a different namespace for the RequestInfo element. I tried specifying the XmlNamespaceManager variable for each namespace, but got the same results....hovering over the nsmgr variable while in break mode reveals that the "children could not be evaluated" and that the DefaultNamespace property is an empty string.
Public Sub testxml()
Dim doc As New XmlDocument
doc.Load("c: empsample.xml")
[code]....
I'm trying to pull a table from an SQL database and sort it on the "Date From" (DtFr) column, which represents the start of a lease. I thought it would be as easy as this:[code]......You were right about the string value. I added a data column called sortDtFr to the datatable and gave it System.DateTime as a datatype and iterated through the rows setting the new column's value equal to the old one casted as a Date. Here's the code for those interested:listing all drives with GetLogicalDrives()..I am getting ( A:. C:, K: )
View 1 RepliesI'm fairly new to ASP.NET & VB.I've been asked to take an existing textbox that is automatically filled with the current date and allow the user to either add a "+" or "-" and a number or a spcific number and convert that into a date.I underdstand the basic concept on how to do this, but I'm running into some problems using the proper commands in order for this to work.The Textbox is called txtDate.What I've tried to do is this:
If txtDate = '+' Or '-' Then
DateAdd("d", txtDate, today)
End If
Here is what the whole thing looks like:
Protected
Sub
DateEnter_Click(ByVal
sender As[code].....
I'm trying the fetch only the date within the current and return how many rows Dim dc as new dataclassesdatacontext dim q=from p in dc.worktime where p.name.equals(session("name") and p.date ).count what I should I put after "p.date" ? And if I want to search for the record which there are record that are insert five days earlier, how to do that ? use (datetime.now - 5) ?
View 3 RepliesI'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 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 RepliesI have a page which lists all the files in a particular folder (all PDFs), using a data-table and gridview. I'm currently sorting this table by the filename (by using a dataview), which isn't that helpful, and I want the gridview of files sorted by the file created or file modified date (as recorded in Windows). If that's not possible, a second option would be to extract the date from the file name string (no problem doing that), and sort the dataview/datatable or gridview based on that.
[Code]...
I have an interesting issue that a client reported It turns out that the desktop application they are using is changing the times returned by the web service to their local time so it looks like the data is off. We're in UTC-5 while they're in UTC-8 so 8:00 AM is returned to the GUI as 5:00 AM which is causing confusion. I've done this riddiculousness to get around it for now:
Code:
Dim intOffset As Integer = TimeZone.CurrentTimeZone.GetUtcOffset(DateTime.Now).Hours
'Substract 1 if we're in daylight savings mode
[code]......
If want to do a DataView.Find on a DataTable that is already 'ORDERED' by the Column I am seaching, so a DataView.SORT should not be necessary, but it throws an Exception if I don't give a .sort command before the .find command. Is there any way to avoid this apparant duplication ? and speed up the search time. Its a very large table - 1 million rows. I am using VB 2010
View 6 RepliesI got a problem with dataview that get data from datatabel (Col1 : ID,Col2: Time) and I'm sorting by Time in desc ... when the values for example {40.21,80.21,70.25,25.2} the dataview sorting them as I need but when one of values goes above 100 for example {40.21,80.21,100.25,25.2} the dataview always sort the highest number is the buttom, I don't know why ..
This is a sample code
Dim dt As New DataTable
dt.Columns.Add("ID")
dt.Columns.Add("Time")
[CODE]...
I have a date in the future e.g. 13/10/2008 I need to subtract the current date (today is the 28/09/2010) minus 7 days, so thats 21/09/2010 minus 13/10/2008, which would equal erm, 720 something ? But the current date won't always be 28/09/2010, obviously. I need the code for this. EDIT: When i said future I mean past :)
View 3 RepliesHow to select data by Id from Dataview . I want to show this it in deferent Textbox
View 6 RepliesHow Can I Select Data from Dataview by Id. I want to use it in Invoice I have All Produck List in Dataview by Id. I just want to Put the Produck Id in A textbox and it will fill the all produck information in other textbox from Datview.
View 1 RepliesI am using VB express 2008 with MsAccess as database. How to bind a dataview to a listview i.e. how we can add data to a Listview from a Dataview.
Dim
DailyExpenses As New DataTable("DailyExpenses")
Dim dv As New DataView(DailyExpenses)
I read in some post something like under but when i tried to implement that ItemsSource is not a member of Listview:
listview.ItemsSource = dtView
I can't understand how it happen. But this first code is working but the second code it did not work (but it is 100 % same code I just change it to the table name). I can't display the data result into DATAVIEW in post # 2, in post # 1 work perfect..
The database are:
Local: access 2003
Server: MySQL server
Post # 1 - Working
Private Sub TSRUpload()
If (Me.Ping.Send("PH180", 500).Status) = Net.NetworkInformation.IPStatus.Success Then
Dim ds As DataSet = New DataSet()
Dim tblLocal As New DataTable
Dim tblServer As New DataTable
[Code] .....
How I wan to do save data from xml file to dataview. How can i do it
View 1 Repliesi have bounded my listbox to a dataset the result is system.data.dataview not name of all my students. below is my code.
con = New OleDbConnection("PROVIDER=microsoft.jet.oledb.4.0;data source=d:
redata.mdb")
con.Open()
[code].....
I'm loading a DataGridView from a DataView which collects data from a DataTable. I use the DataView to filter, this is the
Dim dv As New DataView
dv = DataSet4.Tables("TABLA1").DefaultView
dv.RowFilter = "propietario='" + NombrePro + "'"
[code].....
I'm making a data application and using the data adapters, I created a query in the designer:
EmpActivities_TableAdapter.InsertQuery(IdTextBox.Text, ActivityComboBox.Text, DescriptionTextBox.Text, Cdate(adddate.text))
The question is how can I set the adddate to null or nothing and save it? I'm using SQL server for the data.
I have a VB.NET application that creates a dataview from sql table and exports it as an excel file. Now, the data is inserted value by value. Instead, I want to insert the data from the dataview as a bulk insert on to the excel file. The data insert should happen from the third row, as I need to use the first two rows for column insert and data formating (which is done later in the program using excel macro.).Heres the code I wish to upgrade :
Dim strConn As String = "Data Source = LV-SQL2; Initial Catalog = TC_MASTER; user id = SQL2JOB; password = ******** "
Dim strSql1 As String = "Select Customer_id_1, file_name from customer_list_DA order by customer_id_1"
Dim da1 As New SqlDataAdapter(strSql1, strConn)
[code]....
im trying to select some rows based on a criteria, i was wondering is it faster if i create a dataview (based on the criteria) and then loop through the view? or should i loop through the entire datatable and check the criteria manually.
View 5 RepliesHow can i remove this in my crystal report . this value is showing if my date field in null . "1/1/1900 12:00:00 AM". I don't want to show thin is my report.I have two dates , case open date and case close date . if the case is not closed its showing this value so i want to remove this.I am using sqlsever.
View 3 RepliesThis video shows how to add validation for a textbox:[URL]..what about date ? I can't make it work for date.
View 2 RepliesI am working with calendar inside GridView using VB. I have some NULL date on the DDBB. I can fix the problem using EVAL, but when I try to save the date from the calendar, I got an error telling me that their is no @variable declared.[code]Everything is fine but I got: Must declare the scalar variable "@tDate" trying to save.This is beacuse I'm not using Bind, but with BIND I cannot run checkDate.
View 1 Repliesi have a datetimepicker with showcheckbox properties set to true..
when there is date in database, the checkbox is checked..
but when the database is null, the checkbox is unchecked..
here's the code:
Sub checkeddate() 'to set DateTimePicker.check (compare from database)
'if db is not null, then CheckBox is checked
If IsDBNull(DataSet.Tables("AssetMaster").Rows.Item(curPosition).Item(19)) = False Then
[Code]....
i have a date control on form (vb.net) and by default its value is current date. i want to make its value to null or empty so that no date is shown and user choose from the drop down date calendar.
View 9 RepliesFix my code I am trying to put null in sql server through a function that is excepting _dtSWO.
If I set _dtSWO = Nothing it returns #12:00:00 AM# which throws an exception. The field is nullable in sql server I just want it to return a blank[code]...
I am using visual studio 2010. I have a text box bound to a sql datetime field.I have to be able to either set or clear the text box. I can set it to any date fine, but when I try to clear it I am unable to save the record.i am using the binding navigator to save.
View 5 Replies