this is part of my code
//Instantiate the object we have to deal with
string Name = txtName.Text;
string Description = txtDecription.Text;
string Topic = txtTopic.Text;
error:Argumnet 6 and 7 .cannot convert from System .DateTime to 'string.
I have a calendar control that sits inside a gridview and when i insert into the sql db it inserts the defaults of 111900, how can i insert Null instead of the default date.
Protected Sub lnkSubmitDental_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles lnkSubmitDental.Click
Dim userlogon As String = Split(Current.User.Identity.Name, "")(1)
[code]...
i have created a web form, where i have 3 textboxes into a table and one submit button.
i would like to store values from the textboxes into my database (sql server) when i click the submit button.
but how to insert the value that is not in textbox into database which is primary key for table without identity column.
How should i insert null values into a database. I have textbox1 and the textbox2 will convert the value out of textbox1, when i the time i click save and the textbox1 is empty i got an error, "Conversion from string "" to type 'Date' is not valid." i just want to insert null value if the textbox is empty.
View 1 Repliesi have 103 column in database 1 column is id, 1 is user ,1 datetime, 100 button on webpage 1 textbox to input value , button1 clicked then value in textbox will insert into database with user:=user.identity.nam datetime=datetime.now colum4 will get value from textbox......button2 for colum2 and buton100 for column100, if i use dataset i need 100 datataset, some other way to solve it ??
View 2 RepliesI have a form with many form fields and controls, with some offering an "other" if a value does not meet the needs for the user. How can I bind the sql insert so that it will take the ddl selection along with the txt field selection for the "other" value? Even if the txt field is empty it should not be a big deal since the ddl would provide something other than null. Since the column in the db does not allow nulls. I'm using asp.net (vb) 3.5 sp1
View 3 RepliesI have 2 textboxes for BEGINNING DATE and END DATE. First I compare the dates so that the END DATE is bigger than the BEGINNING DATE. This is OK with the validators.
MY PROBLEM IS: If the END DATE´S TEXTBOX is empty, then it should insert into the SQL DB, a null value. The field has a DATETIME type.
Since my INSERT Query requires a parameter when i call the ADD METHOD, it returns that the END DATE parameter is required.
Consider this snippet of code:
string sDate = string.Format("{0:u}", this.Date);
Conn.Open();
Command.CommandText = "INSERT INTO TRADES VALUES(" + """ + this.Date + """ + "," +this.ATR + "," + """ + this.BIAS + """ + ")";
Command.ExecuteNonQuery();
Note the "this.Date" part of the command. Now Date is an abject of type DateTime of C# environment, the DB doesnt store it(somewhere in SQLite forum, it was written that ADO.NET wrapper automatically converts DateTime type to ISO1806 format)
But instead of this.Date when I use sDate (shown in the first line) then it stores properly.
My probem actually doesnt end here. Even if I use "sDate", I have to retrieve it through a query. And that is creating the problem
Any query of this format
SELECT * FROM <Table_Name> WHERE DATES = "YYYY-MM-DD"
returns nothing, whereas replacing '=' with '>' or '<' returns right results.
So my point is:
How do I query for Date variables from SQLite Database.
And if there is a problem with the way I stored it (i.e non 1806 compliant), then how do I make it compliant
I have a gridview with some columns and I need to sort the gridview by a date-column. But it doesn't sort it correctly. This is the code I use:
dt.DefaultView.Sort = "Meldingsdatum asc";
gvOutlookMeldingen.DataSource = dt;
gvOutlookMeldingen.DataBind();
I have a textbox which displays the date as 01-May-2011 but the database coumis in format of datetime ... how to enter date in date time column of database. ..how to wite the sqlquery for this ?
View 5 RepliesHow to store the datetime value in dd/mm/yyyy format to the sqlserver database,,,,,this is mycode
 connection.Open()
cmd = New SqlCommand("insert into datecheck(id,fromdate,todate)values(@id,@fromdate,@todate)", connection)
cmd.Parameters.Add("id", SqlDbType.Int).Value = TextBox1.Text
cmd.Parameters.Add("fromdate", SqlDbType.DateTime).Value = DateTime.Parse(txtdob.Text)
cmd.Parameters.Add("todate", SqlDbType.DateTime).Value = DateTime.Parse(txtdoj.Text)
cmd.ExecuteNonQuery()
Response.Write("ok")
End Sub
note MONTH AND DATES stored in single or double digits as they occur. Unfortunately DATE TIME is stored in NVARCHAR Data type column as 2/9/2010, 22/10/2010 etc. Following UK Date here. It is required to pull the data to COUNT No. of Expired. Obviously below one fails.
[Code]....
I have an SQL table with a smalldatetime column. The Default Value is set to (getdate()), as I want it to insert the date in which the record is inserted. Null values are not allowed.In my corresponding Table Adapter in Visual Studio 2010, when I select that column and view Properties, under DefaultValue it has <DBNull>. If I try to change this to GetDate(), it won't let me.What's the proper way to do this?I am getting the Failed to enable constraints. One or more rows contain values violating non-null, unique, or foreign-key constraints.error when I try to execute a Table Adapter query that simply tries to return all the rows.
View 5 Replieshow do i insert date and time together ? what is the format for this. i tried like this but its not working.
string startDtime = TextFromDate.Text + " " + Stime;
sql_comm.Parameters.AddWithValue("@StartDate",
DateTime.Parse(startDtime));
is this the right way ? dd/mm/yyy +" "+ 00:00
or i need to make a string that contain this : dd/mm/yyy00:00
its not writing any eror it just do nothing .
i get the new row by form view and i want to have one of the cells in my data be the current time and date to sorting them after inserting.
View 4 RepliesI'm loading data from my database into a DataTable, and one of the columns is a date field.
[Code]....
I'd like to format that column so that instead of containing a full date, it will be formatted like "MM/DD/YYYY".
I've tried looping through each row in the table and changing the cell for that column, but I get an error saying that the string isn't a valid DateTime object.
I tried changing the column DateType to a string, but I get an error saying I can't change the DateType after the table is filled.
How can I do this? This seems like such a simple thing, but I'm having so much trouble with it.
We have a webservice which stores data in sql server 2008R2.I am trying to build a billing system and struggling with the next sql query.
scriberID,X.SubscriberName,X.ProductID,X.ProductDesc,X.NumOfTransactions,X.UnitPrice,SUM(X.NumOfTransactions
* X.UnitPrice)
AS ExtendedPrice
[code]...
Am I going to be able to query (using LINQ to SQL) a database field with a type like the following "public System.Nullable<System.DateTime> Spouse_DOB"?
I'm trying to use the following code: [Code]....
and I get the error "'System.Nullable<System.DateTime>' does not contain a definition for 'Month' and no extension method 'Month' accepting a first argument of type 'System.Nullable<System.DateTime>' could be found (are you missing a using directive or an assembly reference?)"
Is it because this DateTime column allows a NULL value (since everyone isn't married in my database)?
Error 1 'System.Nullable<System.DateTime>' does not contain a definition for 'Month' and no extension method 'Month' accepting a first argument of type 'System.Nullable<System.DateTime>' could be found (are you missing a using directive or an assembly reference?)
C:Working WebsitesGrannys Clan Address BookDefault.aspx.cs
38 26
C:Working WebsitesGrannys Clan Addres
How to do this? I want to select rows where the datetime column is today's date.
SELECT * FROM table WHERE date = ??
I'm trying to combine two datetime columns into one and show just the dates in short date format. How do I change this? SQL Code:
[Code]....
PayNumber Time Period
I am new in Asp.Net Web development..........
I want to convert datetime format as per local date time format from GMT formatted date timebinded in a gridview using Boundfield using javascript only.
In database I have column date but when i enter date my font end view also display time for every date time remain same 12:00 AM ... I don't want to display date how can I do this?
View 1 RepliesI'm trying to combine a date and time from separate variables in my asp.net insert sql. pointers? I'm getting the following error
Conversion failed when converting date and/or time from character string.
[Code]....
I have trouble of saving "no time" to a datetime field in my db by using objectdatasource.I am using a formview to insert new record by an insert method in an objectdatasource.
[Code]....
I create a table as picture below :
when I insert any character to column Name then A new string random will auto insert into column Random (picture below) I had used Trigger but It was error !
I want to column Random use to code :
DECLARE @myid uniqueidentifier
SET @myid = NEWID()
insert into table_1 values(@myid, substring(CONVERT(varchar(255), @myid), 1, 5))
but It must auto like column Number (column Number is Identity)