I need to convert a timespan into an integer. I have two dates that I am subtracting one from the other, returning a value in days. I then need to perform some arithmatical functions on that value but I cant figure out how.
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I would like to declare some properties of my View Model of type TimeSpan to display the TotalMinutes property and bind back to a TimeSpan.
I've bound the property without using the strongly-typed helper in order to retrieve the TotalMinutes property:
<%=Html.TextBox("Interval", Model.Interval.TotalMinutes)%>
When the field is bound back to the View Model class it parses the number as a day (1440 mins).
How can I override this behaviour on certain properties (preferably using attributes on the View Model itself)?
I am getting time span paramter from our client apllication(in Asp.net 3.5 using C#).
When i am Saving this Timepan Parameter at Our Backend (Sql server 2008) Using Linq(In WCF Service) it gives following error:
Unable to cast object of type 'System.TimeSpan' to type 'System.IConvertible'.
My Code is given below:
objsession.s_QuestionMasterTopicInsert(topic.Title, contentId,
Convert.ToDateTime(Time),
topic.IsAvailable, ref strRet,
ref strRetMsg);
// topic.Time(is the time span type )
//I changed Convert.ToDateTime(Time) to
new
DateTime(time.Ticks),
objsession.s_QuestionMasterTopicInsert(topic.Title, contentId, new
DateTime(time.Ticks), topic.IsAvailable,
ref strRet,
ref strRetMsg);
But it gives following error:
SqlDateTime overflow. Must be between 1/1/1753 12:00:00 AM and 12/31/9999 11:59:59 PM
Is it Possible to convert timespan to Datetime?
How should I save timespan at My backend as Datetime Field ?
I have a column as totalsecond in my database i take a avg of tht totalsecond column for the particular parameter and condition and when i come on my aspx page i show that data as hh:mm:ss by converting it with timespan function of dotnet and show this in datagrid but while doing this calculation in DataGrid_ItemDataBind it take so much time and the user have to wait for long time for the result after clicking button show when there is large amount of data.
How can i reduce the time of waiting for the user with some coding logic that speed up the calculation time.
The language I am using is C#.
I have the folowing dillema.
DateTime A, DateTime B. If A < B then I have to calculate the number of days per year in that timespan and multiply it by a coeficient that corresponds to that year.
My problem is the fact that it can span multiple years.
For example:
Nr of Days in TimeSpan for 2009 * coef for 2009 + Nr of Days in TimeSpan for 2010 * coef for 2010 + etc
i need to convert from string to integer, i tried in all ways but no luck.... here is my code
[Code]....
here in checkdDoorID integer value is available, but i can't convert to string. i tried ctype,parse but nothing worked out. i need the value in integer so that i can stored in DB as primary key.
protected void Page_Load(object sender, EventArgs e)
{
string imageUrl = Request.QueryString["img"];
int imageHeight = Request.QueryString["h"];
int imageWidth = Request.QueryString["w"];
[code]...
when i run it this error occur...An error occurred during the compilation of a resource required to service this request. Please review the following specific error details and modify your source code appropriately. Compiler Error Message: CS0029: Cannot implicitly convert type 'string' to 'int'Source Error:
Line 21: string imageUrl = Request.QueryString["img"];
Line 22:
Line 23: int imageHeight = Request.QueryString["h"]; Line 24: int imageWidth = Request.QueryString["w"];
Line 25:
i think i should convert strin to int but i dont know how i can do it.
I want to convert Label text into Integer datatype. I tried by giving Convert.Int32(Label1.Text) and int.Parse(Label1.Text) but I couldn't do Type casting . I am getting error at runtime. I searched in web I couldn't get the solution.
View 1 Replieshow can i convert the column data in datatable to integer array the column data in datatable stored as:
1
2
3
4
after store to integer array,how can i get the max value in array
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.
Possible Duplicate: Convert.ToInt32() a string with Commas i have a value in the label as: 12,000 and i wish to convert it into an integer like 12000 (use it for comparison) i tried int k = convert.toint32("12,000"); this does not work.
View 5 Repliesto convert string value "5%" to integer...I try to use Val(),Convert.ToInt32().... I still got error
View 10 Repliesint val = lstvRecordsCus.SelectedItems[0].SubItems[0];
The returned value is an int in a string datatype. I need the right hand side to return the value in int instead of string.
I tried Convert.ToInt32, it didn't work.
All the values that comes from SelectedItems[0].SubItems[0] is of type int.
i have atable:
STDNo nvarchar(6) //student number primary
CID nvarchar(7) //course ID primary
DNo int //Department Number primary
H1 int allow null // Home work 1
H2 int allow null
H3 int allow null
H4 int allow null
H5 int allow null
Q1 int allow null //Quize 1
Q2 int allow null
Q3 int allow null
Q4 int allow null
Q5 int allow null
HE1 int allow null
HE2 int allow null
FExam int allow null // Final Exam
and stored procedure like this:
ALTER procedure [dbo].[AddMonthlyMarks]
(
@STDNo nvarchar(6),
@CID nvarchar(7),
@Dno int =isnull,
@H1 int,
@H2 int,..........................
the Data key name of grid is STDNo the problem is that the instructor this month will add only homework1(h1) for specific student number or to all students and rest of home works and quezies will not entered (Null), to the next month he will enter home work 2 ,etc... i get an error and i think that the null values for others home works in grid make this error caution: in table i check allow null property,the data type is integer How i can convert this null values to integer?
I want to have a total in the gridview footer of the duration of the employees. As the rowdatabound goes through the cycles I can see it reading the correct times from each row but it is not totalling in totalTime and I get 0:00:00 in the footer.
[Code]....
I would like to use asp.net c# to calculate the timespan for when a file was uploaded. Example, if i uploaded a file two weeks ago my text will say 'uploaded 2 weeks ago' or if i have upload a file 4 month's ago my text will say 'uploaded 4 months ago'
View 2 RepliesIn the code i have :
gvRankings.DataSource = rankings.OrderBy(rg => rg.Swimtime).Take(100).ToArray();
gvRankings.DataBind();
(Swimtime here is a timespan)
At the frontside i have
< asp:TemplateField HeaderText="Tijd" ItemStyle-CssClass="time" HeaderStyle-CssClass="smallheader">
< ItemTemplate><%# ("Swimtime")%>< /ItemTemplate>
< /asp:TemplateField>
I would like to format the swimtime like hh:mm:dd.ff but i have (after 2 hours of trying) absolutely no idea how to do this.....
I have created a small asp.net application that allows users to reset their passwords. I am able to retrieve that last time the password was reset from the Directory Searcher object, but I'm having trouble with checking the timespan since the last password reset. The users can reset their passwords again after 24 hours have passed, otherwise they well get an error stating that they are not able to update their password at this time. Any recommendations on how to best go about doing this?
string passwordLastSet = string.Empty;
passwordLastSet = DateTime.FromFileTime((Int64)(result.Properties["PwdLastSet"][0])).ToString();
I have a calculation that takes place utilizing the TimeSpan.FromTicks method, the result is stored in a TimeSpan object. The calculation itself is working correctly, but I'd like to format the result a bit nicer than it is and I can't figure out how to format a TimeSpan.
The result from the TimeSpan is:
00:00:04.6153846
I'd like to remove any preceding zero's and round up to the second decimal place, such as:
4.62
Does anyone know how I might be able to accomplish this? I can't seem to find a .NET 'built in' solution.
I have a timespan ts that has mostly minutes and seconds and sometimes hours. I'd like to format a string that'll give these results depending on the data
3:30 (hours not displayed, showing only full minutes)
13:30
1:13:30 (shows only full hours instead of 01:13:30)
So far I have
string TimeSpanText = string.Format("{0:h\:mm\:ss}", MyTimeSpan);
but it's not working.
in my application two time input will be passing to my sql stored procedures and I need to calculate the timespan between them. how can I do that? is there any way that I can do the following in t-sql?
[Code]....
So I've got entities set up with Entity Framework that have some properties of types String, DateTimeOffset and TimeSpan. For performing validation on the Strings, I've used fairly straightforward attributes like "[Required]" or "[StringLength]", and the control used is a textbox.
My issue now is for the DateTimeOffset and TimeSpan, I'm uncertain what control to use, but even more uncertain about what attributes to use to validate the input.
In the standard forms authentication, users are identified by a Guid. I want to give my users an UserId of type int (doesn't have to be the primary key, just something to do lookup's on).
Is it safe to add an additional column to the aspnet_users table, or should I create a new table which FKs to the UserId column and has a Unique column which generates the integer ID?
The later sounds like a bad performance hit to take just for the sake of an int!
EDIT I want to create URLs like those on stackoverflow. eg.[URL] where the User ID is an int. For that reason I don't want to use Guids.
Is it possible to popup information according to the value of an integer,
if it's inferior of a number, show up something and if its superior then something else.
How can I manage this .... ?
A very easy one hopefully - what expression can I use to validate an integer to ensure it is greater or equal to zero, but less than 2,147,483,647 (i.e. the maximum value of an integer)?
For example 0 =< x < 2,147,483,648
