How it's possible to add/update a date(or other string) to the database when a user connects? i use in this
MySqlConnection = New MySqlConnection
MySqlConnection.ConnectionString = "server=***; Port=***; user id =***; password=***; database=***"
[Code].....
Everytime I wish to update the date into a database, It comes with this error Conversion from type 'DataRowView' to type 'String' is not valid
Here is my code
Me.Validate()
Me.DisplayLoanBindingSource.EndEdit()
Me.TableAdapterManager.UpdateAll(Me.LibraryDataSet)
frmLibrary.DisplayLoanTableAdapter.Fill(frmLibrary.LibraryDataSet.DisplayLoan)
I am trying to update a SQL Server database Date field.When the user enters the date they enter 02 Oct 2010.When I pick up the DateTimePicker.Value it is 10/02/2010 00:00:00. I need to get the value to read 02/10/2010 00:00:00 How do I get the value to be in this format?
View 7 Replieshow I can ensure that conversion of a date to a string and a string to a date will give me the same date format.
For example:
Code:
Private Sub Button1_Click(sender As System.Object, e As System.EventArgs) Handles Button1.Click
Dim d As Date = Date.Now
[code].....
I'm actually only interested in the date part as the label text shows so f is more than I want.But also, the day and month are reversed.
I am attempting to use the DateTimePicker and then add a day to each iteration in a For/Next loop. That seems to work fine and I can verify with msgbox that it is happening. However, I also need to write the date in string format to an Access database using INSERT INTO. However, when the code is ran, I get a "syntax error (missing operator)". Code is below. Can someone help please? I have tried all I know to do.(Please disregard the additional values in INSERT TO, I have verified they are working properly)
[Code]...
I have a problem with the code below as a SQL command string. Note: Using .Net Framework 4.0 in Visual Studio 10 Professional. Database is a Microsoft Access file. The idea is that this SQL command string will update a password within my database. Also note that I have tried the string below with and without the ";" at the end and it does not work either way. The problem is most likely extremely obvious, but I can't seem to find it. I have commented below the code what each part of the String is.
"UPDATE Users SET Password='" & tbx1.Text & "' WHERE Username = '" & sUsername & "';"
' Users is my Table name within the Database.
' Password is the field that I want to edit within the Users table.
' tbx1.Text is where the password is stored within a text box.
' Username is the field which I would like to compare with sUsername which is a variable within the code.
Solution was square brackets, Command string now looks like this:
"UPDATE Users SET [Password]='" & tbx1.Text & "' WHERE [Username]= '" & sUsername & "'"
Title pretty much says it all. How do I format the date of a dateandtimepicker to insert it into the SQL date datatype?
View 20 RepliesI am trying to alter a column in an Access database in VB2008 from date to text format using the SQL string as follows "ALTER TABLE receipts ALTER COLUMN Date CHAR(10)"but whether I Use TEXT, CHAR, VARCHAR or STRING, I get a Syntax Error when I run ExecuteNonQuery.
View 2 RepliesI doing some maintenance work on a vb .net web app and receive a system.formatexception input string was not in a correct format error after I update a row from a GridView control. The database update returns fine and I've stepped through the code and it never throws an error but when execution finishes and returns to the browser I get the following. I turned on the feature to break when an exception occurs but it never does break. Any suggestions? [Code]
View 2 RepliesI am currently working on a custom data type, and wanted to implement a = operator.
I data type is a nullable date that returns a string value if date was supplied.
I want to allow the variable to be set like this
Dim nd as New NullableDate nd = Today Does anyone know how this can be done, or can anyone point me in the right direction?
So there's this accounting package at my client that spits out text-based reports with invalid dates, like February 31st or September 31st.The reports are formatted with spaces and mono-spaced fonts. The data that gets parsed out are fed into a more formal local SSRS report, and that's about all you need to know.
What I am interested in fixing is the situation where a date is invalid and can't be converted into a DateTime struct. The date format from the report is "MMM-dd-yy" (e.g. "Feb-30-10"). The date strings need to be fixed before being shown in the formal report. I've seen this done two ways in my time as a developer, and I want to come up with a cleverer way of doing it (if there isn't a built-in way I don't know about).The first bad method (I can't believe I'm even showing you!):
Dim month As Integer = <Parse out the month from the bad date string>
Dim day As Integer = <Parse out the day from the bad date string>
Dim year As Integer = <Parse out the year from the bad date string>
Dim validDate As DateTime
[code]....
I am using SSIS and I need to transform a date. How can I transform a date in String format (e.g. 14/09/1980) to the same but in date format in VB.NET?
I would like the datetime format to insert it into a SQL database.
I have a string that holds a value in the format of ddMMyyhhmmss.
Example 240512024707
I need to be able to convert this date to a real .NET Date object.
I am currently using CDate but it seems CDate does not recognize the format, is there any way of specifying the string format to CDate ???
row.Item("NoteDate") = CDate(n.noteText.Substring(0, 12).ToString).ToString("dd/MM/yyyy hh:mm:ss")
I am fresher in vb.net but I have experience in vb 6.0. But I want to connect database in sql server through sql connection. In that case how to create connection with window or sqlserver authintication mode and how to add or update new record in data base in batch transaction. Please help me with sample code.
So that I can understand eassily.
I used to take a string from a text box in vb.net and pass it to a sql query to update or insert in a database.I faced a problem when the set of characters in the text box contain " ' " (single quote), it throws a error "unclosed quotation mark".
View 3 RepliesI am using ASP.NET with SQL Server 2005.
My date get saved in the database with data type = "smalldatetime".
I am displaying the date value into a text box called txtDate with a Reader......
Dim conn As Data.SqlClient.SqlConnection
Dim Comm As Data.SqlClient.SqlCommand
Dim reader As Data.SqlClient.SqlDataReader
[Code]....
But currently my date get displayed as "2008/06/30 12:00:00 AM" and i want to display it as "30 June 2008".
my sql statement is returning null when when I compare date from access database and date entered in textbox in vb. seems to me that the two dates are of different format so null is returned from the select statement but how do I go about this.[code]
View 3 Repliesupdate statement, i am trying to update a row within a access 2007 database here is my code.
[Code]...
Is there any way to get the date (from Today.Date/User input) to a whole number and then return it to a date string?Only way I have so far thought of is:[code]
View 11 RepliesI'm using date in the format dd-mm-yyyy and I need to convert a string inthis format to a date type.My string is "18-01-2010" but when I do the conversion using dim TargetDate as date=CDate(TgDstr).where TgDstr is "18-01-2010", the resutant TargetDate, as note in the debugger window, is #1/18/2010# rather than #18/1/2010# which I expected.What change in code should I made to get the desired result?
(P.s. I've checked the current culture with the following line of code:
Dim str As String = CultureInfo.CurrentCulture.Name and get the result 'zh-HK'... and the date-time format I find in the control panel is also in dd-mm-yy format)
I am using vb.net with access database. I am using sql. How can i update database with the value 40'6"(Feet and inches values)
View 5 RepliesWhat is wrong with this code. It does not update the access database and no error.
Dim conn As New OleDbConnection
Dim sqlQRY As String = "SELECT * FROM StdMaster WHERE StuNo = " & txtStudentNo.Text & " ORDER BY StuNo"
[CODE]...
I am debugging an application that I ported from Windows, to *nix, a little while ago. The app stores dates as doubles (using the OLE Date format). I need to be able to inspect the dates - as human readable strings. I cant find an online conversion tool, so I decided to roll my own.
I was originally going to write an OpenOffice function, but I think it would be more straightforward to use one of the .Net languages, to write a small console app that accepts the double as a parameter and prints the date string to the console.
I am relatively new to .Net (though I have dabbled with both C# and VB.Net in the past). Can anyone help with my main() function? - snippets in either VB.Net or C# will be equally useful.
I have a date, as a Date type and a time, as a String and I want to combine the two into a Date type. ie. #2/11/2011# & "13:55:27" = #2/11/2011 1:55:27 PM#. How can I do this?
View 2 RepliesI cant select and update... from one gridview (call GW)I need to set always the date when the user update the info. how u do that?I trie several idea. By all null value in the gridview column date, set to current system date.. dont work 4 me.Then true the update process same problem using the DefaultValue="<%= DateTime.Now.ToString() %>"
`UpdateCommand="UPDATE [partes] SET [ESTATU] = ?,[SCONF] = ?, [SNOTES] = ?, [CONFDAT] = ?, [DCREA] = ?, [ASN] = ?, [ASNDATE] = ? WHERE [ID] = ?">
<UpdateParameters>
[code]......
i'm currently making an app that needs to run a query between two dates. this app will run automatically, so i need to put the dates as today and yesterday, essentially.
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when i am trying this Date.Compare(Format(DateTimePicker1.Value.Date, "dd/MM/yyyy"), Convert.ToDateTime(dr(1))) < 0 it gives an error message as "Conversion from string "23/06/2011" to type 'Date' is not valid."where dr(1) is database field in text format as 29/3/2011 (dd/mm/yyyy) .
View 3 Replieshow can i convert these datatypes: date to string and integer to string.Because it must be in a string datatype when I display it in a datetimepicker and textbox.
View 3 RepliesMy regional settings are set to dd/mm/yyyy.I'm trying to update an access table from a datagridview.When datein in the Rate_Per_Period table is #31/10/2009# the update works perfect.When datein has a value of #1/11/2009# the update doesn't work.[code]
View 7 RepliesInside my datagridview,there are 3 columns. One of them i want to use it to display the current date and time. How should i write the sql language.
MyCommand = New OleDbCommand("UPDATE DateTime.Now AS End_Date....")
May I know how should I continue?