SQL Server :: Comparing Datetime Field In DB?
Sep 7, 2010I need to check the datetime field in my DB to see if the time that's current set is 12hr's past?What's the command to use? Can I just DATEDIFF?
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C# - Comparing Nullable DateTime's In VB.net?
Nov 17, 2010I am a c#/asp.net developer and I am having to work on a VB/asp.net. I started out with VB.NET but after years away from it I'm getting confused with the syntax.
I have two variables
Dim originalDate as DateTime?
Dim newDate as DateTime?
Both nullable datetimes, originalDate is a nullable date I am getting from the database and newDate time is set in code, I need to compare them, they can either both have dates, neither have dates or one have and one not.
I have a bit of code as follows:
if origEndDate = origEndDate then
When both origEndDate and origEndDate are "nothing" this statement is false (well when I run it in the watch window it comes back as nothing)!
I don't understand why this is the case because I was under the impression doing an "=" compares the two values and as they are the same surely it should be true?
What syntax should I be using as in C# I can do the above as so:
if (origEndDate == origEndDate) { }
and it will come back as true.
SQL Server :: Return Year Only From Datetime Field?
Oct 1, 2010Using SQL Server 2005.
I need to return the year only from a datetime field and then group by that field, does anyone know the syntax for this?
SQL Server :: How To Query Only Date Portion Of Datetime Field
Nov 27, 2010i have one data base field called CreatedDate whos Type is DateTime. Let say i have following Data in this Field
10/7/2010 12:07:57 PM
10/7/2010 12:09:14 PM
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SQL Server :: Query To Update The Date Part Only From A DateTime Field
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To be more clear:
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This is for example one record:
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How should to Read a date field from Excel Sheet Cells?
MVC :: Comparing An Input Field Against A Database Table?
Dec 6, 2010I am REALLY new to ASP.NET MVC, and it is alien to my way of thinking.In my project, I have managed to get as far as allowing the user to add, edit or delete entries from a table. What I want to do is ensure that a specific field (i.e. "Tank_Number") does not get duplicated. What is the correct way to implement this?
I would like to use custom validation in the model class, the reason being the handy error messages, but am getting more confused as I read more articles. At the moment, I am using an If statement in the Controller, but it isn't ideal.
Here is my example code:
Controller [Code]....
Model
[Code]....
View
[Code]....
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View 1 RepliesDataSource Controls :: Comparing Data In A Text Box To A Date Field In A Record?
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[Code]....
SQL Server :: Converting Mysql Datetime To Sqlserver Datetime C#?
Nov 15, 2010I am trying to get data from mysql database and store in sqlserver database. i am getting the following error
The given value of type MySqlDateTime from the data source cannot be converted to type datetime of the specified target column.
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View 1 RepliesForms Data Controls :: Row Data Bound Method That Inserts A Row When Comparing Values On A Particular Field
Jan 22, 2010I have a gridview, which on the row data bound method that inserts a row when comparing values on a particular field. If the two values are different, a new row is inserted, if not no row is inserted. This coding is working as a grouping gridview, and is working correctly. However, I have problem, and problem is counting the rows between each group, which I want to display in my blank row between each group, the value of which I am holding in a hiddenfield.
When I try to do it, the first group doesn't show the result, but is displayed on the next group. I am pretty sure that I am doing something wrong. My approach is that if the value between the last row and the existing row are different, then the value is one, on the next row data bound event, if the values are the same then the value is increased by one, else the value is one because it is a new group. Here is my code:
protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
Table tbl = e.Row.Parent as Table;
TableCell cell = new TableCell();
CheckBox chk = new CheckBox();
Label lbl2 = new Label();
HiddenField rowValue = new HiddenField();
if (e.Row.RowType == DataControlRowType.Header)
{
e.Row.Visible = false;
}
else
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
Session["count"] = 1;
Label lbl = (Label)e.Row.FindControl("lblValue");
string str1 = ((Label)(lbl)).Text;
string prevStr= (string)Session["previousStr"];
if (prevStr== str1)
{
lbl.Visible = false;...................
Split Datetime Field To Dd & Mm & Yy & Hr & Min?
Apr 7, 2010I retrieve the date & time from datetime field in sql using a reader:
[Code]....
This value returns e.g. 15/04/2010 8:00:00 but I would like to split the day value (15), month value (4) etc from the overall datetime value, so I can assign dropdowns with corresponding (preselected) day, hour selection ..I know the dropdown assignment process, but I can't get the datetime field/value split ..
MVC :: Use TextBoxFor With A DateTime Field (in Particular - Add HtmlAttributes)?
Apr 9, 2010I'm having a problem understanding how to use TextBoxFor with a DateTime field (in particular how to add htmlAttributes). MVC has helpfully scaffolded the following for me:
[Code]....
I now want to add an htmlAttribute to this, to make the rendered <input> element read-only, for example:
new {@readonly="true"} The problem I have, is that the MSDN documentation for TextBoxFor (see [URL] says only allows two arguments are allowed, the LINQ expression, and a dictionary or object containing the htmlAttributes. So I have two questions:
1. What is the role of "String.Format("{0:g}", Model.LastPolled)" in the scaffolded version? This obviously works, but doesn't seem to be an htmlAttribute.
2. How should I modify the scaffolded version so that the readonly attribute will be used?
C# - Filter EntityDataSource For DateTime Field?
Aug 31, 2010I am using and EntityDateSource and I add where condition to filter the data at runtime and then bind the grid to the dataSource, but I am getting following error:-
The argument types 'Edm.DateTime' and 'Edm.String' are incompatible for this operation.
Search condition looks like this:-
it.[MyDate]='8/13/2010 00:00:00'
Web Forms :: Add Days In Datetime Field?
May 11, 2010I have two fields i.e. StartDate(Datetime) and duration(number)., I am trying following
row["Inspection Time"] = result["StartDate"] + result["Duration"];
SQL Server :: Comparing Rows In A Table?
Mar 11, 2011I have a large database of user profile data. I need to be able to compare 1 row against all of the other rows, for all columns to find the best match.There are around 30 columns of data for each row. I need to be able to find the 5 best matching rows.
I.E.
Row 1 matches on 2 column's
Row 2 matches on 12 column's
Row 3 matches on 7 column's
Row 4 matches on 4 column's
Row 5 matches on 9 column's
Row 6 matches on 23 column's
Row 7 matches on 29 column's
In the end it will show me the data for rows 7, 6, 2, 5, 3 Now to make it even harder, Some of the columns are bit, some are varchar.Some of them may be a direct match, some will need to search if the column for row2 contains the text of row 1.
SQL Server :: Comparing Data In Two Tables?
Jul 15, 2010Im trying to use the following SQL statement to find every row in Orderable Test List where there is not a row in Results Individual Tests that has a matching entry in the TESTHISCD column. When I run the page everything freezes up.
"SELECT [Orderable Test List].*, [Results Individual Tests].TESTHISCD FROM [Orderable Test List], [Results Individual Tests] WHERE [Orderable Test List].TESTHISCD <> [Results Individual Tests].TESTHISCD"
C# - Comparing Textbox.text Value To Value In SQL Server?
Apr 15, 2010I am trying to compare a login textbox password and username with a custom validator using linq to get information from the database it always returns false though on the validator where my code below is going wrong.
protected void LoginValidate(object source, ServerValidateEventArgs args)
{
TiamoDataContext context = new TiamoDataContext();
var UsernameCheck = from User in context.Users
where User.Username == TextBoxLoginUsername.Text && User.Password ==
[Code]....
I dont know where I am going wrong I know its most probably some sort of silly mistake and me being inexperienced at this...
SQL Server :: Comparing String To Varchar?
Nov 12, 2010I'm trying to compare a string from a label to a varchar(50) in my database. String Occasion = '1 2010-07-07 10:00' compared to varchar(50) OccasionID = '1 2010-07-07 10:00'
[Code]....
[Code]....
I've checked that the values really are identical in the debug. I was under the impression that no conversion is neccessary between string and varchar, but maybe I'm wrong.
Web Forms :: Formatting Datatable Datetime Field?
Sep 18, 2010I am getting an error message:Conversion from string "mm/dd/yyyy" to type 'Integer' is not valid.
What is best way to format date filed from datatable without showing the time?
ClosingDate is smalldatetime in my SQL DB.
[Code]....
C# - Get Date From Datetime Field Mysql Query?
Dec 24, 2010I want to fetch date from a datetime field, when i select this field in database i get the result as 'yyyy-mm-dd hh:mm:ss' i want the result to be like dd/mm/yyyy
I am developing website using ASP.net C# using Mysql.query i have made is:
//***to get next date
string nextdatequery = "SELECT next_dt
FROM testcase.heardt where fil_no=?
and next_dt>?;";
Web Forms :: How To Display Sql Datetime Field As Text
Jul 23, 2010how do i display a datefield field e.g. 07/27/2010 08:00:00 as Tuesday, July 27, 2010? (i want the time part but i couldnt find any fucntions that display the date in text mode?)
I am creating a SQL procedure and need to read the data back into a gridview in that format.
Check Whether The Datetime Control Field Is Empty?
May 17, 2010I have a sharepoint datetime control named date. Now how can i check whether the the field is empty or not;
i have the following code
if(date.ToString() != "")
{
lbl.Text = "Not Empty";
}
i did not enter any date in that field but the above code is always executed.
it always have the current date.
How can i assgin empty string to selectedDate propert of Sharepoint DateTime Control?