Asp.net - Converting Integer Into Regular Date?

Mar 7, 2011

I am being passed a date in this format DepartDate=40683, in vb.net however i cant figure out how to convert the integer into a regular date.

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Converting Decimal In A Label To An Integer?

Mar 28, 2011

Currently using VS2008, VB.NET, SQL. I have a FormView from a Data Source that is getting some fields that are stored as Decimals in the SQL Database.

I am grabbing the field from the FormView as such:

Dim AvgTicketL As Label = CType(frmMerchantProfile.FindControl("F10Label"), Label)

I need to take this value, and convert it to an Integer, then send it along to an API. I have the API Calls done, tested and working, but I'm getting an error as when it is getting this value, the API is returning "Must be an Integer" error.

What I have tried so far:

Dim AvgTicketL As Label = CType(frmMerchantProfile.FindControl("F10Label"), Label)
Dim AvgTicket1 As Integer
AvgTicket1 = Double.Parse(AvgTicket.Text)
Do something with AvgTicket1

I have also attempted to Round the Value, then convert it and call it - no luck.

Checking the value of AvgTicket1 (Writing it out to a Label or Response.Write) shows "100", where the database value was 100.00. But the API is still getting 100.00, apparently. Any other conversion method that I've attempted states errors that the Label cannot be converted to Integer.

What are some methods I can successfully convert this value to an integer from a label?

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Converting Char To Integer Representation C#?

Mar 9, 2011

When I try to run the following code it always spits out the hex representation, not the integer representation. Most of the examples I found on MSDN said this should work. What am I missing?

var stringBuilder = new StringBuilder("8");
int j = 0;
foreach (char item in stringBuilder.ToString())
{
j = Convert.ToInt32(item); //returns 38, need return to be 56
}

edit I should have made clear that I know the difference it's returning the hex value. I'm outputting the value to a file, and in that file, it still shows the hex value, not the integer, so I don't think it has anything to do with the debugging environment. edit2 Looks like a PEBKAC problem. Looked at the code that was writing to the file, and it was using a .toString("X") method, changing it to a Hex value. The fact that it was hex in my debug environment was what confused me.

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Web Forms :: Converting Hidden Field Value To Integer?

Jan 7, 2010

int no = int.Parse(hidden_field.Value.TrimStart()); it cause the error: input format was not in correct format. how to fix it?

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Converting Integer To String Within The Eval Function?

Jan 11, 2010

I'm trying to add a parameter at the end of a url obtained from the database as follows:

This is giving error because of the ID value, which is an integer...how can I convert it to string here? I can do it in code behind, but I just want to know how it can be done within the Eval function...

NavigateUrl

='<%#Eval("Filepath") + "&ID="+DataBinder.Eval(Container.DataItem,"ID")%>'

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DataSource Controls :: Converting String To Integer For Inserting In SQL Database

Jan 28, 2010

I have a stringvariabel in a form I shall insert in a SQL database in a integer field. I try to convert it in the parameterlist:

myComm.Parameters.Add("@UtstyrID",
SqlDbType.Int).Value =
Convert.ToInt32(e.Record["UtstyrID)"]);

but it only store the value 0 and not the value of the e.Record["UtstyrID)"])

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Forms Data Controls :: Converting Dataview Column Info Into Integer?

Jan 15, 2010

I have the following code reading in my xml file and sorting it by ID:

Dim ds As New DataSet
ds.ReadXml(Server.MapPath("/posts.xml"))
Dim dv As New DataView(ds.Tables(0))
dv.Sort = "id desc"

The only problem is that it isn't sorting it numerically (it's sorting it alphabetically 1, 10, 11, 2, 24, 3, 4...). It appears as though I have to convert that column into integers, but I haven't been able to figure out an efficient way to do that.

im ds As New DataSet
ds.ReadXml(Server.MapPath("/App_Data/posts.xml"))
'ds.Tables(0).Columns(0).DataType = TypeOf(Decimal)
Dim dv As New DataView(ds.Tables(0))
'dv.Sort = "date"

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Databases :: Converting Varchar Date To Date Format?

Aug 14, 2010

I am using mysql and stored date in varchar format, and compare that with current date,i have stored like(dd-mm-yyyy) in database

i need to compare it with date in select query. How to take date from database in dd-mm-yyyy format.

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How To Convert Date To Integer C#

Jan 18, 2010

I am having an issue with C# and separating current day, and month into integers. I tried the code in MSDN but it doesn't work.

[Code]....

Labels display nothing, but code shows no errors, and you can see I tried 2 different ways of doing it.

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Web Forms :: Converting Date To Persian Date?

Jul 22, 2013

I used below code to showing date in persian format

DateTime miladi = DateTime.Now;
System.Globalization.PersianCalendar shamsi = new System.Globalization.PersianCalendar();
Lbldate.Text = string.Format("{0}/{1}/{2}", shamsi.GetYear(miladi), shamsi.GetMonth(miladi), shamsi.GetDayOfMonth(miladi));

AND

public string miladitoshamsi(object miladi1)
{
DateTime miladi = Convert.ToDateTime(miladi1);
System.Globalization.PersianCalendar shamsi = new System.Globalization.PersianCalendar();
return string.Format("{0}/{1}/{2}", shamsi.GetYear(miladi), shamsi.GetMonth(miladi), shamsi.GetDayOfMonth(miladi));
}

and I have lable that I want bind it from database to show date so I wrote below code

lbldateM.Text = System.Convert.ToDateTime(miladitoshamsi(_dr1["date"])).ToString(" yyyy/MM/dd");

but below error happen

String was not recognized as a valid DateTime.

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.FormatException: String was not recognized as a valid DateTime.Source Error: 

Line 52: while (_dr1.Read())
Line 53: {
Line 54: lbldateM.Text = System.Convert.ToDateTime(miladitoshamsi(_dr1["date"])).ToString(" yyyy/MM/dd"); Line 55: lblname.Text = _dr1["Name"].ToString();
Line 56: lblmob.Text = _dr1["Mobile"].ToString();

what should i do?

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Custom Format Integer As Date In DataGrid?

Feb 1, 2011

I have an integer field in my database that contains a date value in the form yyyyMMdd. Is it possible to parse this as a date in the form dd/MM/yyyy as bound to a datagrid?

Currently the field is bound like this:

<asp:boundcolumn datafield="access_date" headertext="Last logged on"></asp:boundcolumn>

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Web Forms :: Object Reference Not Set To Instance Of Object While Converting To Integer?

Apr 27, 2016

I have an web application solution in asp.net webforms with 3 projects named:

1) TestiModels where are custom classes.

2)TestiServices where are are asmx web services

3)TestiApp where are UI files like default.aspx. inside this project consume webservices

For two days I am getting this error at default.aspx file:

Object reference not set to an instance of an object.

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.

Source Error:

Line 70: u.gender = RadioButtonList1.SelectedValue;
Line 71: u.photo_path = FullPath;
Line 72: int retVal = service.InsertUser(u);
Line 73: if (retVal == -1)
Line 74:

Source File: c:UsersJonTestiAppTestiAppDefault.aspx.cs Line: 72

Models are located in a separate project named TestiModels

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
namespace TestiModels

[code].....

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Converting Date To Day Of Week?

Mar 21, 2010

is there any ready to go solution within the microsoft framework, regarding conversion of date to day?

For example, i would like to convert this string 21/03/2010 (dd/mm/yyyy) to Sunday

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Converting Date Time Value To Timestamp

Mar 25, 2011

I have a web page that has a textbox for users to enter a datestring to check against a database. The database that I am running my query against has datetime values set at minutes since 12/31/1899 and that returns a timestamp. What I'd like to do in my code is to convert my textbox entry into minutes since 12/31/1899. Does anyone have an easy way to do that?

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Converting Date In Sql Server 2005?

Feb 7, 2010

In my application (asp.net) I am uploading the video and storing the video in databaselike videoname,videotitle,dateofuploded these are the fields. My problem is when I am displaying that video I want to display the date like '2 days ago' or ' one month ago' or 'one year ago'

How can I write the function for converting the date into that process.

Take example of youtube. On that site below the video display the date when it was uploaded.

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SQL Server :: Converting From String To Date

Jan 14, 2011

I have a query that converts my string value I have stored in the database (nchar(8)). I have a stored procedure that gets the value and converts to date and when I run the select part of my stored proc to test it it successfully returns the mm/dd/yy format that I want: ex: 02/28/2010 However when I call this stored proc from my program I am getting an exception:

<Exception> Conversion failed when converting datetime from character string.

</Exception> Puzzled why the query works fine but .net gives me an exception? does anyone know how to solve this?

The part of my query that does this conversion is:

[Code]....

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Date(MM/dd/yyyy) Validation Using Regular Expression

Feb 10, 2010

in my application i have to entrer the date into a textbox. and i'm using a Ajax Tool Kit Calendar control to select the date and is put into a Text Box.the date format should be MM/dd/yyyy i have the regular expression for dd/MM/yyyy format.

<asp:RegularExpressionValidator ID="RegularExpressionValidator1" runat="server"

ControlToValidate="txtvaliddate"
ValidationExpression="^(((0?[1-9]|[12]d|3[01])[.-/](0?[13578]|1[02])[.-/]((1[6-9]|[2-9]d)?d{2}|d))|((0?[1-9]|[12]d|get
[Code]....

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Regular Expression For Date Time (dd/MM/yyyy Hh:mm:ss Tt)?

Feb 1, 2011

give me a regular expression for this format dd/MM/yyyy hh:mm:ss tt i tried this sites but i don't get any good one

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Web Forms :: Date Regular Expression Validation?

Apr 28, 2010

send me regular expression for this format (DD/MM/YYYY).E.g.--23/12/2009,1/12/2009,1/1/2009.It should accept all the 3 formats..I want regular ex. code only.No other solution.

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Web Forms :: Comparing Two Regular Expressions Of Date?

May 15, 2012

I applied regular expression validator on date of birth and Missing date for a missing person.  the missing date should be greater than the date of birth . I applied compare vallidator but it is not working properly. it comparing day of date of birth with day of missing date, both months and years...

if i give...

date of birth:  2/2/1980

Missing date: 1/2/1981

it is giving the error message...

I applied this regular expression:

^((0?[13578]|10|12)(-|/)(([1-9])|(0[1-9])|([12])([0-9]?)|(3[01]?))(-|/)((19)([2-9])(d{1})|(20)([01])(d{1})|([8901])(d{1}))|(0?[2469]|11)(-|/)(([1-9])|(0[1-9])|([12])([0-9]?)|(3[0]?))(-|/)((19)([2-9])(d{1})|(20)([01])(d{1})|([8901])(d{1})))$

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C# - Converting A Website Project Type To A Regular Project

Jun 20, 2010

I've created a new vs.net project and added all the files from an asp.net website project.

When I compile, it couldn't find a reference to a class.

In the AppCode the class was defined, but without a namespace.

So I added a namespace, and then on the default.aspx.cs (this is where the error was originating) I added the using statement.

The using statement was not picking up the namespace.

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Converting Date String To DateTime Format Vb.net?

Dec 1, 2010

I have this example and it gives me exception "Conversion from string x to dateTime is invalid"

here is my method to validate Datetime.

Example Date string : "27/03/1985"

Public Function validateDateColumn(ByRef FieldName As String) As Boolean

Try
If IsDate(FieldName) Then
Dim actualDate As DateTime = CDate(FieldName)
Dim DtLicExp As DateTime = CDate(actualDate.ToString("d", Thread.CurrentThread.CurrentCulture))
FieldName = DtLicExp.ToString("MM/dd/yyyy")
Return True
End If
Catch ex As Exception
'FieldName &= "Format must be MM/dd/yyyy"
Return False
End Try
End Function

validate this date string formate to datetime.

I want to convert this date "27/03/1985" to datetime.

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Web Forms :: Converting Date And Time Format In Vb.net?

Apr 22, 2010

I have searched a few pages on this (including MSDN) but have not quite reached a solution. I need to convert "16/04/2010 22:39:06" to "2010-04-16 22:39:06.034" (for example).

I have already written an SQL function to do this, but would rather do this in VB.NET if possible. The date value is coming from the Date Created information of a newly uploaded file:

[Code]....

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ADO.NET :: Converting Date To String And Formatting It Linq To SQL?

Aug 2, 2010

I have problem in converting date to string I am using cstr(p.tripstart) , which is returning Date as 12 Aug 2010 12:AM I need to make formating This is my code :

[Code]....

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Web Forms :: Regular Expression For Multiple Date Formats?

Jun 3, 2010

I am trying to get a regular expression to validate the following date formats ONLY:

MM/DD/YY
MM-DD-YY
MM/DD/YYYY
MM-DD-YYYY

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