Check Whether DateTime Data Type Variable Is Null / Empty?
Oct 6, 2010How i do check whether DateTime data type variable is null/empty in asp.net ?
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Dec 6, 2010I have setup my business object to have a create_date and edit_date members both datetime datatypes. My company want to display the create_date and edit_date fields in a gridview for each transaction. The problem i have is that after insterting a record it will have a valid create_date but no edit_date and when displayed in the gridview it defaults to datetime.minvalue (My default). How on earth do i show an empty field in my gridview for a null datetime field in the database?
I am using similar architecture to the Imar Spaanjaars example of a tiered solution. With a few small tweeks it has worked well for me for ages. I am passing a List<Database> to my object datasource which connects to my gridview.
MVC :: Nullable DateTime And DatePicker - Dictionary Requires A Non-null Model Item Of Type 'System.DateTime
Apr 1, 2011I have a problem:
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Here is view example:
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The model item passed into the dictionary is null, but this dictionary requires a non-null model item of type 'System.DateTime'.
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Data Controls :: Query For Both Empty Or Null Values Check Together
Mar 14, 2012this is my sql query and its work fine in my code but it only check ParentDeptID IS NULL it not working when ParentDeptID field is empty how can i check it
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View 2 RepliesCheck 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?
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Jul 4, 2010c# - How to Grab Date Only from a Variable of Type DateTime
DataTable tempTable = new DataTable;
tempTable = getCustomerTable();
In this case, tempTable will have a table (named CustomerInvoice) which has
5 columns. The 3rd column is named DueDate. I print to a listview
as following:
[Code]....
I prefer to solve this problem at application rather than db level. NOTE: DueDate in database is of type datetime. I'm coding in C# interacting with Sql-Server. I hope my question is clear enough.
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how I can change my query to accommodate this?
[Code]....
Active Directory/LDAP :: Check If Length Is Null Or Empty?
Nov 17, 2010I'm fetching som data from AD and I notice that I'm getting an exeption and notice that one of the users field that I'm fetching is empty, how can I prevent exeption.
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[Code]....
WebMatrix :: Check For Null / Empty Strings On Dynamic Objects?
Aug 20, 2010What is the proper way to check for null or empty strings on dynamic objects? This is the only solution I've found so far:
if (admin.PasswordHash.GetType() == typeof(DBNull) || admin.PasswordHash == string.Empty)
If the field is null, the object returned is DBNull.Value, but if the field is empty string, it's return as a System.String object. This makes it impossible to do regular "admin.PasswordHash == DBNull.Value" check, as that will fail whenever the field has been set to empty string. Is my example the right (and only) way to go?
SQL Server :: In Sql Function Check To See If Variable Is Null?
Feb 4, 2011Inside a function I need to check to see if a variable value is null, how to do this? I implemented the code but its not returning the value I thought it would return.If it's null I want to set the value of the variable, else I want to query the value from a table
[Code]....
LINQ Group By And Compare Date Error Message - The Conversion Of A Char Data Type To A Datetime Data Type
Jan 27, 2011I have the following:
[code]....
I keep getting this error:
Message = "The conversion of a char data type to a datetime data type resulted in an out-of-range datetime value."
What i'm trying to do is group by ContentObjectId and then get StartDate that is greater than today.
I'm using entity framwork and MS SQL2008
DataSource Controls :: The Given Value Of Type String From The Data Source Cannot Be Converted To Type Datetime
May 19, 2010I have this error "The given value of type String from the data source cannot be converted to type datetime of the specified target column." when I used sqlbulkcopy to do the transaction
Here is my code:
[code]....
Empty String - Check If Textbox Empty?
Sep 5, 2010I have this code, how will I write the code so I can check if a textbox i empty? This way want work. Now it goes in if cellPhone != null all the time.
[Code]....
VS 2008 How To Check If Data Set Is Empty
Feb 22, 2011How can i check if dataset is emty some thing like follows
if dataset=emty then
msgbox("NO table")
else
....
End if
I am importing excel files from root folder, when file not there then message should apeear to avoid collapsing application.
Code:
ry
Dim strExcelConn As String = System.Configuration.ConfigurationManager.ConnectionStrings.Item("ExcelConnection1").ToString()
Dim dbConn As New OleDbConnection(strExcelConn)
Dim strSQL As String
[code]...
MVC :: Check To See If ViewBag.Data Is Empty?
Feb 28, 2011How can i check to see if ViewBag.Data is empty?
View 7 RepliesWeb Forms :: How To Show Select Country When Data Value Is Empty Or Is Null
Jan 4, 2010If the datavalue which is empty and not exist in the dropdownlist data source, it will prompt error. How to overcome??I want it will show 'Select Country' when data value is empty or is null.
<asp:DropDownList ID = "ddllabelCountry"
DataSourceID="objCountry"
DataTextField="CountryName"
DataValueField="CountryCode"
EnableViewState="true"
[code]...
Forms Data Controls :: Display Null If Column Is Empty
Sep 10, 2010is it possible to display Null. if my sql data is null while binding it with gridview in asp.net
[Code]....
[Code]....
for example like this
[IMG]http://i53.tinypic.com/n51ogh.jpg[/IMG]
Forms Data Controls :: How To Check For Empty Cells
Jan 13, 2010i'm trying to check for an empty cell in a gridview.
On the RowDataBound event I tried the following:
- if (String.IsNullOrEmpty(e.Row.Cells[2].Text.Trim()))
- if (String.IsNullOrEmpty(e.Row.Cells[2].Text))
- if (e.Row.Cells[2].Text == "")
None of them worked.
I'm using boundfields. I can't use a TemplateField with a label because I need to check for other stuff for that column in the RowDataBound event by doing e.Row.Cells[2].Text - that only works if I use boundfields.
Forms Data Controls :: Check Sqldatasource Whether It Is Empty?
Nov 22, 2010I have a sql view of a table, I need to check whether it is empty, if it is empty, I need to hide a grid, other wise I need to show it.
Is there anything useful for me to check the sqldatasource?
As example:
SqlDataSource1.isitempty();
or such things.
Do I have to use dataset or such things?
Forms Data Controls :: ObjectDataSource And DateTime - Set This Property To Null Without Workaround?
Mar 20, 2010I use FormView with ObjectDataSource and class. I have a TextBox binded to a DateTime? property. When TextBox.Text property is empty i want to set the property of my class to null but the value is 1.1.1 00:00:00. My Workaround:
[Code]....
Is there a way to set this property to null without this workaround? Is this a bug in DataSource or is this a feature by design?