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.
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)
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?
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Cannot insert the value NULL into column?
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.
I INSERT LIKE
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I setup a very simple example using a DetailsView and an EF Model with Contact, Individual, and Customer from the AdventureWorks database (2008). Viewing, Editing, and Deleting work just fine. However, I'm getting the error when I try to create a new Contact.
Here are the relevant code snippets:
[code]...
I get the dreaded error:
Cannot insert the value NULL into column 'PasswordHash', table 'C1AdventureWorks.Person.Contact'; column does not allow nulls. INSERT fails.
I've monkeyed around with the StoreGeneratedPattern="Computed" and DefaultValue="0" for the PasswordHash property in the Contact entity as well, but it didn't .
so i have a FormView bound to an SQL datasource.
Using the Auto generated insert/update/delete. "Cannot insert the value NULL into column 'UniqueID'"
The FormView Default view = Edit
I have set the PKey and the Datasource is loading the record from a session. The record is loading no problem, just wont update.
I have this error when trying to insert a new record through a 'New' button in asp:DetailsView control. Error details:Message: Sys.WebForms.PageRequestManagerServerErrorException: Cannot insert the value NULL into column 'idUser', table 'C:INETPUBWWWROOTVIEWS1APP_DATADBSEARCHRESULTS.MDF.dbo.UserDetails'; column does not allow nulls. INSERT fails.I have an typed dataset xsd & adapter, where i automatically generate delete, update, insert commands. I also use SqlDataSource.The field idUser doesn't allow nulls on database level, and in the xsd I marked the following properties:AllowDBNull = false, AutoIncrement = true, AutoIncrementSeed = 0, AutoIncrementStep = 1, ReadOnly = true, Unique = trueMy code is:
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How to solve the problem or where I should look for the problem?p.s. If i have in DetailsView, idUser field properties set: InsertVisible="True", ReadOnly="False" and i enter a value manually, the records successfully inserts.
I am using VS 2010, C# and Sql server 2008. I am having a list returned from the database. I am trying to convert the
list to a dataset.
I am getting the error as "Cannot set column 'column name' to be null. use DBNull instead.
This is the code i have used:
[Code]....
How to fix this?
I am trying to create a stored procedure where I can insert null values in columns that have a foreign key constraint and allow nulls. The columns I am trying to insert nulls into are commentid and imageid. I have created an Insert statement in a stored procedure and I get the foreign key constraint error. Can you tell me how to allow inserting data in the other columns without having to insert anything in the commendid and the imageid?
Here is my exec of the stored procedure that is not working:
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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(int) faultsGroup is 0 or 1 but i always get this error: Column 'FaultGroup' cannot be null Does anyone tell me why? Syntax looks ok.
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I've been working on this project which requires me to insert data into a database. Due to the complexities of the function that I am doing, it is more complex to use SqlDataSource and hence I've used the traditional method of inserting to the database. The codes are as follows:
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I am not too sure why, but even though I've debugged numerous times and the data gets inserted into the database through the form view, I get this error on the page after everything is executed: Cannot insert the value NULL into column 'reviewDate', table 'ProrsumDB.dbo.Review'; column does not allow nulls. INSERT fails. The statement has been terminated. reviewDate wasn't null when I tried and there are no exception thrown.
I am attempting to bind data from a dropdown list that was populated from another datasourceID. I've bolded what I believe is relevant to this issue in the code below. But basicly its binding the proper county on the pull down menu but when I hit form submit it dosnt postback that info instead its null.
[code]....
I have a table with the field called "languqage" set to VARCHAR(5). In the runtime code, I set the value to null and I got this error.
View 1 RepliesI have an insert table with identity specification set. And I getthis error. I'm using a stored procedure to store it. How do I correct it. I'm also using a details view on my insert page.
Exception Details: System.Data.SqlClient.SqlException: Cannot insert explicit value for identity column in table 'Insert' when IDENTITY_INSERT is set to OFF.
I have a table converted from Access and the identity keys were lost. Now I need to make the id column the identity column, but it already has a lot of null values, how do I auto generate integer values for the null rows? The row ids are incremented, so if there is a way to auto increment the ids
View 7 RepliesI have gridviwe having 2 columns:
1) DocNumber 2)Title
query select docnumber,title from tbl_docs.
BindwithGridviwe(sql);
Now the issue is that that every document doesn't has document number. I want to make invisible the docuNumber column of the grid viwe if all values in the docNumber retrieved are null.for example:
docnumber tite
null Document 1
null Document 2
null doucment 3
null document 4
if returned result match above where all docnumber are null then make the gridviwe docnumber column ivisible eslemake the greidviwe column visible.
I am working on a web app for an online photo album. It is the last project in Scott Mitchell's book: "ASP.Net 2.0 in 24 hours".
I am creating a page where users can enter new photo images. The functionality for uploading an image will come later. I am working on just inserting a new row into the Pictures table with an optional category, a required title and a required description.
I am getting an error when I try to insert a new row.
Here is a screenshot of the page with a shot of the dropdown list.
The Categories are user-specific. I am getting the correct values retrieved.
[URL]
There are two pretty simple database tables involved here.
NOTE: The CategoryID and PIctureID are both autoincrement integer columns.
[URL]
The page uses a DetailsView that uses a SqlDataSource that uses the Pictures table. (The DetailsView's Default Mode property is set to "Insert". The "Enable Inserting" checkbox is also checked.)
The dropdown list uses a dropdown control that uses a SqlDataSource that uses the Categories table.
When the "Insert" button is clicked the CategoryID value associated with selected (Category) Name on the dropdown list will be used along with the Title and Description values to insert a row in to the Pictures table. (If no Category value is selected, then a null value will be used for the CategoryID. This is OK because the CategoryID column in the Pictures table allows nulls.)
My problem is that I am getting this error:
Cannot insert explicit value for identity column in table 'Pictures' when IDENTITY_INSERT is set to OFF.
(FYI: I have the full version of both Visual Studio and SQL Server.)
Here is my source code for the page:
[Code]....
I 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 Repliesm getting this error again and again. i m also using the ajax modalpopup extender in my page ..
View 3 RepliesI 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)
My site was woking fine, now i noticed that i get an error "Microsoft JScript runtime error: 'null' is null or not an object" when i checked the view source, i saw the following system generated code
<script type="text/javascript">
var Page_ValidationActive = false;
if (typeof(ValidatorOnLoad) == "function") {
ValidatorOnLoad();
function ValidatorOnSubmit() {
if (Page_ValidationActive) {
return ValidatorCommonOnSubmit();
}
else {
return true;
}
WebForm_AutoFocus('txtMailAddress');// --> IS THIS RIGHT???? out side the braces???
</script>
</form>
</body>
</HTML>
and a reference to this line below
<IFRAME id="__hifSmartNav" name="__hifSmartNav" style="display:none" src="/m2qa/WebResource.axd?d=fvL5WUdiCo1B4KvdiJfkfg2&t=633546432952161750"></IFRAME>
i am new to asp.net programming i am trying to insert data into access db from asp.net web form but it is showing error as
Syntax error in INSERT INTO statement.
my code is :
Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click
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)));