C# - How To Insert Null Into Database

Oct 12, 2010

I am trying to insert null in a database column depending on a gridview datakeys value (if being "" insert null into database)However, I am getting a space ' ' inside the database column.

string sbcId = gvTest.DataKeys[gr.RowIndex]["myColumn"].ToString();
insgnp.Parameters.Add(new OleDbParameter("EMPID", (sbcId==""?DBNull.Value.ToString():sbcId)));

View 5 Replies

Similar Messages:

ADO.NET :: Insert A Null String Value Into An SQL Database?

Dec 22, 2010

I'm having some problems with the interface I've created. After some searching, I've discovered that it is inserting an empty string into my database fields as opposed to an null value. I need my application to insert null values, not emptry strings. Can someone provide an example of how this is done?

View 2 Replies

Vb.net - How To Insert NULL Into Database If Form Field Is Empty

Jan 18, 2011

I have a form and stored procedure that inserts the data from the form. It works fine except that if a field isn't filled in it doesn't insert a NULL into sql it inserts "".

I've tried a few different ways but none seem to insert NULL, the one below still inserts "", can anyone point me in the right direction.

Here is the required part of the code, if you require more just let me know.


So if I enter nothing into address1 field it should write NULL to screen but it always writes NOT NULL.

View 4 Replies

Web Forms :: Insert NULL Value In Database When TextBox Is Blank

Mar 12, 2014

below is House_info table in database

Id Behtop Service1 Service2

1 1111 Estate Null
2 2222 Home Home1

and I have 2 Textbox in page that users can enter text on them and update House_info tables column service1 and service2

below is SP:

@Service1 nvarchar(20)=NULL,
@Service2 nvarchar(20)=NULL
update House_info set

and behind code

_cmd.Parameters.AddWithValue("@Service1", TxtMT1.Text);
_cmd.Parameters.AddWithValue("@Service2", TxtMT2.Text);

problem is that if users enter text in TB and click on button it update columns data but if they don't enter any thing in textbox it enter space in Table like:

Id Behtop Service1 Service2

1 1111 Estate
2 2222 Home Home1

I want if users don't enter any thing in text box it insert in table "NULL".How I can do it?

View 1 Replies

Web Forms :: Insert NULL In Database Is Date Is Not Entered In TextBox

Jul 6, 2012

I have one text box for accepting date. I want to store date column in  database is null when the text box value is null and how to bind the this null value to text box when i retrieve.

View 1 Replies

Web Forms :: Insert NULL Value For Date Column In Database If TextBox Is Blank

Jun 16, 2015

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 Replies

Data Controls :: Insert NULL In Database If User Does Not Select Item From DropDownList

Jan 6, 2013

I have some textbox and Dropdownlist in my page and bind it from database

BindDropDownList(DDL3, "Guidcenter", "Centername","id");

DDL3.Items.Insert(0, new ListItem(" please select ", "0"));

I have button in my page that when user click on it insert data into database

Here when users didn't select Item from dropdownlist it insert "please select" ( text that I define for DDL ) into database but I want when users didn't select Item from database it insert NULL in database.... 

protected void ImageButton2_Click1(object sender, ImageClickEventArgs e) {
string data = Server.UrlDecode(Request.QueryString["BehCode"]);
SqlCommand _cmd = new SqlCommand("insertinfo", _cn);
_cmd.CommandType = CommandType.StoredProcedure;

[Code] ......

View 1 Replies

Forms Data Controls :: Insert Database NULL If Drop Downlist Item Is Not Selected?

Sep 1, 2010

on my aspx I have the below DDL

<asp:DropDownList ID="ColorDDL" runat="server" DataSourceID="ColorObj"
DataTextField="Size" DataValueField="BustId" Width="150px"
<asp:ListItem Value="-1">(Optional)</asp:ListItem>

If the user does not select an item I get an exception when i call the ObjectDataSource Method and DAL as below to insert into database

ProfileObj.InsertParameters["ColorId"].DefaultValue = ColorDDL.SelectedValue.ToString();

What I want to do is insert a database NULL instead.

View 3 Replies

Data Controls :: Insert Null Into Database If Users Didn't Select Any Item From DropdownList

Jan 9, 2013

URL.... When I wrote this code in other page with different SP It didn't worked correctly I change SP in new SP I used INSERT code instead of UPDATE now when users didn't select Item from ddl3 it insert 'please select' in table these are my code

protected void ImageButton2_Click1(object sender, ImageClickEventArgs e) {
SqlCommand _cmd = new SqlCommand("insertSreg", _cn);
_cmd.CommandType = CommandType.StoredProcedure;


View 1 Replies

Forms Data Controls :: Insert On Details View Causes Error Cant Insert Null Into Primary Key Field?

May 22, 2010

I am using Visual studio 2010 express and I have a details view databinded to an sql database table. When I use the Insert option on the view it causes an error due to it trying to insert a null into the primary key field. If the Insert function does not create a new primary key entry how is it created?

View 9 Replies

Forms Data Controls :: Displaying A Null Or Empty Cell For A Null Datetime Database Value In Gridview?

Dec 6, 2010

I 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.

View 3 Replies

MVC :: Cannot Insert The Value NULL Into Column

Jul 19, 2010


Cannot insert the value NULL into column?

View 3 Replies

SQL Server :: Bulk Insert Or Insert Multiple Rows Into Database At A Time?

Aug 20, 2010

i need to insert multiple rows at a time into database table(sqlserver) from datatable or gridview. Actually iam looping through the rows of gridview and inserting each row. Is there any method to insert entire table of rows at a time into database table. Both datatable columns and database table coulmns are similar.

View 2 Replies

Forms Data Controls :: Insert New Blank Rows In A Gridview And Insert Them In Database Multiple At A Time?

Oct 19, 2010

I have grid view in ASP.Net 3.5. I need to add multiple blank rows in a gridview and then have to save them in database. How can I do that in most simplest way?

View 7 Replies

ADO.NET :: Error - Cannot Insert The Value NULL Into Column 'Cid

Nov 28, 2010

I have a table called category that has tow attribute (Cid,Name)

what can i do to insert category name only without allow user to insert category id in my webpage, I use view detail control and make the wizard link but when run the error message appear (Cannot insert the value NULL into column 'Cid)

note the identity properties is not pass.

View 2 Replies

Error - Cannot Insert The Value NULL Into Column 'Vid'

Dec 9, 2010

I have two table with a one to many relation.

1- voteChoose has (Choid PK,Choose,Vid)

2-VoteQuestion has(Vid PK,Vquestion,Action)

so when insert a question and answer in a page this error message (

Cannot insert the value NULL into column 'Vid') appears

i use this function to add vote

public void AddVote(string VQuestion, string[] Choose)

View 6 Replies

Insert Null Value Into Integer Field

Jan 28, 2010

how can insert null value into integer field

View 3 Replies

Databases :: Insert NULL Value In Oracle?

Mar 5, 2011

I am trying to insert NULL value in oracle database using asp.net form. and its not inserting null value check my below code and guide me what changes I have make

cn As
New OracleConnection("Data
Source=ab; User Id=abc;Password=abc")
'build the INSERT statement
Dim xy
New System.Text.StringBuilder
'Dim strDate As Date...............................

View 3 Replies

SQL Server :: Insert Null Datetime Into DB?

Nov 4, 2010

I 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 DATES 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.

View 8 Replies

Web Forms :: How To Insert Null Value In Image Column

Feb 11, 2010

how can insert null value in image column.i using sql server 2005 and in my database i have column image and datafield id image.when i browse a image and insert it then it is working but when i insert it without image then it is not saved.an error ocure-Operand type clash: nvarchar is incompatible with image.



View 8 Replies

Fluent NHibernate Cascade - Trying To Insert NULL ID?

Mar 8, 2011

I have the following models & mappings (code snippets further below).

One Competition has to have multiple CompetitionAnswers associated with it (multiple choice) from the outset.

At present, using the Fluent NHibernate mappings shown below, when I create a brand new Competition object, populate the properties, then create 3 brand new CompetitionAnswer objects and add them to the CompetitionAnswers property (property on Competition), I would expect to call Save on the session which would INSERT the 1 Competition row and 3 CompetitionAnswer rows to the DB.

However, as soon as I try to call Save on the session, it complains that CompetitionId is null and it can't insert a null into the CompetitionAnswers table for that field - which is right, it shouldn't, however, I assumed that the NHibernate would first create the Competition, then use the newly generated IDENTITY value (CompetitionId) in the CompetitionAnswers table?


View 3 Replies

SQL Server :: Insert NULL Int Into Stored Procedure?

Jan 17, 2011

I'm strugling with this problem for quite some time and I've tried many different solution but nothing works. In my application there are 3 textboxes. First is mandatory but user can leave second and third empty. I that case I want that application insert NULL.

Here is .aspx code:


c# code:


Stored procedure:


I've tested code when user fills all 3 textboxes and it's working fine. If one second or third (or both) textbox(es) is(are) empty I wish to insert NULL into table. I've tried with DbNull.Value, null, 0, "3232131" and nothing works. I always get error Input string was not in a correct format. which is strange since code works when 2. and 3. tbs are filled and I'm not inserting string. And I've specified that table allows inserting of null values.

View 13 Replies

ADO.NET :: Insert Null Into Datetime Filed In Sql From Textbox?

Feb 16, 2011

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)


View 2 Replies

DataSource Controls :: Insert Null Value From Sqldatasource?

May 24, 2010

In following SQL query: SELECT DISTINCT CodeID, CodeDesc FROM Faults.TblFltClearCodes AS TblFltClearCodes

I am getting a list but there is no null value.Within this query I would like to get only one NULL value at the top and then the list.How to do this? Explicitly I am not allowed to give a null value in the table in DB.

View 5 Replies

Web Forms :: Insert NULL Value When No Value Selected In ListBox

May 7, 2015

if (!String.IsNullOrEmpty(hospitallist))
//If TextBox is not empty pass value.
cmd.Parameters.Add(new SqlParameter("@Hospital_list ", SqlDbType.VarChar, 2000));

[Code] .....

View 1 Replies

Copyrights 2005-15 www.BigResource.com, All rights reserved