DataSource Controls :: Inserting Via GridView And Sqldatasource - Null Error.
Jan 24, 2011
I am not able to figure out why I am getting the null error at SqlDataSource10.Insert(); I tried running through break points and i checked the Insert statement and it has all the required values .. but I get error saying it cannot insert null into NrNarrativeDays. I am working off a sample at this link..
http://www.aspdotnetfaq.com/Faq/How-to-insert-row-in-GridView-with-SqlDataSource.aspx
[Code]....
Datasource and Gridview code is below
[Code]....
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Aug 5, 2010
I have a problem with inserting some records into an access database using the sqldatasource control.
Here is Ex 1:
[Code]....
Ex 2:
[Code]....
I have tried both examples above, and some variants of them, but I'm getting errors.
With Ex 1 I get:
System.Data.OleDb.OleDbException was unhandled by user code
ErrorCode=-2147217913
Message="Data Type Mismatch." [code]....
what is wrong with both examples above?I'm adding values to all fields in the table, except for the ID field, ofcouse.
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Jul 15, 2010
I have an editable grid where user can add/edit data. They also have the option to load previously entered data from last month. When the user then clicks save, i want to readd this newly modified data as a new record for this month. So basically I want to call the insertcommand, but it does not work. My 'save' method just 'updates' the records.
Providing sqldatasource, grid and save method
<asp:SqlDataSource ID="SqlDataSourceLoadActivities" runat="server" [code].....
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Apr 14, 2010
i have built an inserting interface in a GridView's Footer Template. Added Button for insert , auto generated the insertCommand in SqlDataSource. But then how to Bind the data of inserting interface to insert command of SqlDataSource ?In FooterTemplate. i have taken TextBox.GridView's RowCommand Event is handled in this way.
[Code]....
(all that i did , i took help from this web site's tutorial)
So,How to insert data?
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Aug 2, 2010
I have an user control placed on a content page. The content correctly receives the session variables. In the user control I have the following
1. The pageload fires and the text box is correctly set.
<script runat="server">
protected void Page_Load(object sender, EventArgs e)
{
if (Session["app_id"] != null)
{
txtAppId.Text = Session["app_id"].ToString();
}
</script>
2. I have datagrid in the usercontrol which has a binding variable tied to a control parameters as follows
<asp:SqlDataSource ID="SqlDataSourceMain" runat="server"
ConnectionString="Myconnectionstring"
ProviderName="MyProvider" SelectCommand="select
last_name,first_name
from applications
where (id = to_number(:pAppId))">
<SelectParameters>
<asp:controlparameter name="pAppId" controlid="txtAppId" propertyname="Text" />
</SelectParameters>
<SelectParameters>
<asp:controlparameter name="pAppId" controlID="txtAppId" propertyname="Text"
Direction="InputOutput" Type="Int32" ConvertEmptyStringToNull="True" />
I tried the following, same error
</SelectParameters>
<asp:SessionParameter
ConvertEmptyStringToNull="True"
DefaultValue="0"
Direction=" InputOutput "
Name="pAppId"
SessionField="app_id"
Size="integer"
Type="String" />
</asp:SqlDataSource>
For some reason the select parameter pAddId is getting set to null and get the following error when the content page is loaded If I hard code the value it works RA-01036: illegal variable name/number Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: Oracle.DataAccess.Client.OracleException: ORA-01036: illegal variable name/number
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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.
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May 15, 2010
what i would like to do is when the value of my sqldatasource is returned, then if it is null, run a code, in my case, redirect them to the login page, heres my code:
string connectionString = ConfigurationManager.ConnectionStrings["PokemonPlanetConnectionStrings"].ConnectionString;
string insertSql = "SELECT * FROM LoggedInUsers WHERE UserId = @UserId";
using (SqlConnection myConnection = new SqlConnection(connectionString))
[Code]....
Now what i would simply like to do is, if the select statement searches the database, and the result is not found, the simply redirect them to "register.aspx"
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Sep 23, 2010
I have a FormView which is bound to an SQLDataSource. When a user clicks on a save button the form, I need to write any changes made to the FormView back to the table.
I have a Stored Procedure on my MSSQL 2005 database that should be executed when the user clicks on the save button.
It appears the Update is firing, but when I trap the DbCommand object in the SQLDataSource's 'Updating' event, all of the parameters that should be passed to the Stored Procedure are coming through as NULLs. Consequently, the Stored Procedure isn't updating anything.
In the click event of the save button I'm explicitly firing the SQLDataSource's Update method:
[Code]....
The parameters in the SQLDataSource <UpdateParameters></UpdateParameters> section appear to be correct.
Can anyone give me an idea on what to investigate to figure out why it appears the Update is only picking up NULLs?
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Dec 21, 2010
this is my html code [Code]....
i need to set null value to SqlDataSource Insert Parameter at runtime
i am used this code
[Code]....
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Mar 8, 2010
i want to insert null in smalldatetime column, when user doesn't select any date from the calender control i want to insert null in the databse, i am using typed dataset in my application.
here's my code
[code]....
it gives me the exception "SqlDateTime overflow. Must be between 1/1/1753 12:00:00 AM and 12/31/9999 11:59:59 PM."
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Feb 13, 2010
I have this "SP" that will insert one record to Table 1 and multiple records in Table 2 ...
I just need a way to prevent null values to be inserted in Table 2 ? here is how it looks in my table 2
ID Col1 col2 Col3
3 AB CDE EFGs
4 NULL NULL NULL
4 GDF SSS DFGD
i don't want to insert the second record ... how do i do that using existing "SP" ?
here it is my SP :
CREATE PROCEDURE dbo.Insertvalues
(
@newParentName NVARCHAR(100),
@NewJobTitle NVARCHAR(100) ,
@NewDepartment NVARCHAR (100) ,
@NewCompanyName NVARCHAR (100) ,
@NewURLAddress NVARCHAR (100) ,
@NewOfficePhone char(15),
@NewFax char(15),
@NewMobilePhone char(10),
@NewEmailAddress nvarchar(50),
@NewChiledGroup NVARCHAR(100) ,
@Newchiled_jobTitle nvarchar(100),
@Newchiled_department nvarchar(100),
@Newchiled_phone char(15),
@Newchiled_mobile char(10),
@Newchiled_email nvarchar(50),
@NewChiledGroup1 NVARCHAR(100) ,
@Newchiled_jobTitle1 nvarchar(100),
@Newchiled_department1 nvarchar(100),
@Newchiled_phone1 char(15),
@Newchiled_mobile1 char(10),
@Newchiled_email1 nvarchar(50)
)
AS
-- add parents group
INSERT INTO parents_group (Name,JobTitle,Department,CompanyName,URLAddress,OfficePhone,Fax,MobilePhone,EmailAddress)
VALUES (@newParentName,@NewJobTitle,@NewDepartment,@NewCompanyName,@NewURLAddress,@NewOfficePhone,@NewFax,@NewMobilePhone,@NewEmailAddress)
--obtain inserted id
DECLARE @NewParentId INT
SET @NewParentId = scope_identity()
-- insert into childe table
INSERT INTO childe_group
(groupId , chiled_name,chiled_jobTitle,chiled_department,chiled_phone,chiled_mobile,chiled_email)
(SELECT @NewParentId,@NewChiledGroup,@Newchiled_jobTitle,@Newchiled_department,@Newchiled_phone,@Newchiled_mobile,@Newchiled_email)
UNION
(SELECT @NewParentId,@NewChiledGroup1,@Newchiled_jobTitle1,@Newchiled_department1,@Newchiled_phone1,@Newchiled_mobile1,@Newchiled_email1)
GO
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Feb 21, 2011
I have a SqlDataSource connected to database and use a parametrized query to fetch out data.Query has got a very large varchar field on which i have to perform a search.To make search, i have 2 combobox and a textbox organized in this way
MAIN CATEGORY (combobox)-> CATEGORY TYPE(combobox) -> MODEL(textbox).
Based on main category choose, category type is filled from database. At last, it's added a "nothing" combobox item.Now i should search into big varchar field adding category type condition but, if nothing is specified, i should make identical search like all combobox value are selected. How should i, in your opinion, make this using SqlDataSource?
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Dec 2, 2010
i have a webpage built in asp.net c#. it always a user to create a new record in a db table. there are there are two input fields, text and score. text cannot be a null value so if the user doesn't input text onsubmit, the page errors out. i want to throw in some simple error handling code in the code behind page. i've tried including an if/else on_inserted method but ran into some java script errors.
[code]....
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Feb 8, 2011
I have to use SQLDataSource for inserting, updating and deleting in database through gridview instead of using SqlDataAdapter and SqlCommand object. I have to do it in ADO.NET (means C# code).
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Jan 14, 2010
I have the logged-in user's Guid stored in a session variable. My understanding is that when the Guid is passed to the session variable it becomes a string. When I use the detailsview control I have to convert the session variable back to a guid and I've been doing it like this and it seems to work fine:
e.values("UserId") = session("LoggedInUserId")
Dim UserId as Guid = New Guid()
When I try to use the Insert() command after the following:
SqlDataSource3.InsertParameters("UserId").DefaultValue = Session("LoggedInUserId")
I get an "InvalidCastException" error with the comment "Conversion from type 'Guid' to type 'String' is not valid." I'm assuming the session variable needs to be converted to a type Guid since that's what I've had to do with the Detailsview control. I've tried a few different ways of converting the session variable back to a Guid so the insert command will work, but no matter which method of conversion I try I get errors such as "value of type system.guid cannot be converted to 'string'. I'm confused because I thought I was supposed to convert it from a string to a Guid. The "UserId" parameter is a non-primary key uniqueidentifier in the database.
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Mar 19, 2010
I'm using Enterprise library, but the idea is the same. I have a SqlStringCommand and the sql is constructed using StringBuilder in the forms of "insert into table (column1, column2, column3) values (@param1-X, @param2-X, @parm3-X)" + " ";where "X" reprents a "for loop" about 700 rows like so
[Code]....
So after all is done, I have 700 insert statements in one batch and of course, I did another 700 loops and added the values to those parameters. It runs fine and fast for a few days. However, last night, suddenly I get this error
[Code]....
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May 7, 2015
On update the dropdown value shows NULL in database : here's structure for my gridview
<asp:TemplateField HeaderText="Construction Phase" SortExpression="Phase_Name">
<EditItemTemplate>
<asp:DropDownList ID="EditedDropDownInGrid" runat="server" CssClass="form-control" DataSourceID="PhaseSQLDataSource" DataTextField="pp_name" DataValueField="pp_id">
</asp:DropDownList>
</EditItemTemplate>
[Code] ....
It updates other controls in gridview but does not update my selected dropdowns item value in Integer format which is inside gridview...
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Sep 27, 2010
I have a stored procedure that creates a dynamic query. Sometimes the query is not built because there are no elements in the dynamic query. When the aspx page loads the SqlDataSource throws an error that the query is malformed. How can I catch this error, and handle it with a default message, before it returns the error to the aspx page?
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Nov 25, 2010
I get the Erorr: Input String was NOT a correct format.
The first three controlparameters are STRINGS and they work fine.
However the last two populate the controlparameter from text boxes that can only accept numbers and decimal point.
First the text boxes for {3} and {4} string parameters in the SQL filterexpression:
[Code]....
And then the SQLDatasource control parameters[Code]....
The last two control parameters are the ones is question as they feed {3} and {4} parameters in the filter expression, NOTICE how I set the type="double".The data input is expected to be like 152.25 or 3.6 or 4 etc,So why am I getting this error: [Code]....
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Jan 26, 2011
I am getting error on attempted Databind call to DataList1 with nested SqlDataSource tool after attempting to update or delete a record.
The SqlDataSource control 'sqldsfilelist' does not have a naming container. Ensure that the control is added to the page before calling DataBind.
Here is the aspx page code.
[Code]....
And the code behind....
[Code]....
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Dec 14, 2010
i couldnt find a specific answer to this question, i am relatively new to .net :)
i have a gridview that is displaying data from a sqldatasource in my page_load event. i need to loop through the records and update each value of a particular column BEFORE being set into the GridView.
i have tried converting to a data set and looping through updating the values, however it seems that one i initially run my query the values get set right into the GridView and i can't update them after that.
Do I need to add one of the GridView functions like Databound and do the loop in there?
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Aug 20, 2010
I want to create a generic page which contains a gridview and sqldatasource. I want to put these two controls on .aspx (C#) page but bind them at runtime. It should have selectcommand, updatecommand, deletecommand and insertcommand. Stored procedures are created for that. Help is needed to make it. .
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Nov 21, 2010
This is not my solution. I actually compiled it here with proper example. So I don't take any credit for the solution. In the past I have used GridView to insert recordsbut not using ObjectDataSource. Mostly I did it by catching RowCommand event of GridView and call the appropriate function. This time I was adamant using ObjectDataSource to Insert in Gridview. GridView doesn't support Insert so it does not actually instantiate OBjectDataSourceView automatically for Insert operation
So here is the soloution, catch the RowCommand event of gridview, get the ObjectDataSourceView, create orderedDictionary, add entries to ordered dictionary, call insert function of ObjectDataSourceView instead of ObjectDataSource. Here is the RowCommand event of the gridview
[Code]....
Here is the ObjectDataSource
[Code]....
Here is the business object class
[Code]....
Here is the object class
[Code]....
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May 14, 2010
I am trying to tie a sqlDatasource to a Stored Procedure. The stored procedure looks like...
[Code]........
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Jun 19, 2010
I want to send multivalued parameter to SQLdatasource via gridview control.
My slect query is like
SELECT * FROM FRUITS
WHERE FruitID IN(@FruitIDs)
how can i achieve that?
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