How To Pass A Null To SelectParameters In SqlDataSource?
Feb 17, 2006
How to pass a null to SelectParameters in SqlDataSource?
The type of "CreateDate" is DateTime, the following code can be run correctly!
SqlDataSource1.SelectParameters["CreateDate"].ConvertEmptyStringToNull = true;
SqlDataSource1.SelectParameters["CreateDate"].DefaultValue = "2006-11-12";
now I hope to pass null value to the Parameter "CreateDate", but the following 3 section codes don't work!
SqlDataSource1.SelectParameters["CreateDate"].ConvertEmptyStringToNull = true;
SqlDataSource1.SelectParameters["CreateDate"].DefaultValue = string.Empty;
or
SqlDataSource1.SelectParameters["CreateDate"].ConvertEmptyStringToNull = true;
SqlDataSource1.SelectParameters["CreateDate"].DefaultValue =null;
or
SqlDataSource1.SelectParameters["CreateDate"].ConvertEmptyStringToNull = true;
SqlDataSource1.SelectParameters["CreateDate"].DefaultValue = "";
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Sep 23, 2007
I'm developing a web app using VS2005. I have a webpage with panel containing a gridview populated by a SQLdatasource. The SQLdatasource in turn is populated by a stored procedure that can take up to 5 parameters. The user types in up to 5 separate words (searchterms) in a text box which are then parsed and passed to the stored proc in the datasource which performs a fulltext search. The gridview then becomes visible. My problem is that unless the user types in 5 searchterms (no less), the gridview returns zero rows. 5 searchterms returns the proper results. Somehow, I need to be able to pass in null or empty values for unneeded parameters.
I've tested the stored procedure in Query Analyzer and from within the SQLdatasource configuration (using Test Query) using 0 up to 5 parameters and it works fine, so that's not my problem. Here's the code that runs after the user types in their search term(s) and presses a button:Public Sub FTSearch_Command(ByVal sender As Object, ByVal e As CommandEventArgs) Handles btnFullText.Command
Dim x As Integer
pnlFullText.Visible = Falsefiltertext = Replace(txtSearchTxt.Text, "'", "''")
If Not filtertext Is Nothing Then
filtertext = filtertext.Trim
Else
Return
End IfDim arrayString() As String = filtertext.Split(" ")
Dim length As Integer = arrayString.LengthFor x = 0 To (length - 1)
If Not arrayString(x) Is Nothing ThenSelect Case x
Case 0 : lblFTParm1.Text = arrayString(0)Case 1 : lblFTParm2.Text = arrayString(1)
Case 2 : lblFTParm3.Text = arrayString(2)Case 3 : lblFTParm4.Text = arrayString(3)
Case 4 : lblFTParm5.Text = arrayString(4)
End Select
End If
Next
pnlFullText.Visible = "True"
End Sub
Any ideas?
Thanks in advance.
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Apr 27, 2008
Hi,
I am using a grid view with parameter defined in dropdown list. the asp code is:
<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:Pubs %>"
SelectCommand="SELECT [au_id], [au_lname], [au_fname], [state] FROM [authors] WHERE ([state] = @state)"
DeleteCommand="DELETE FROM [authors] WHERE [au_id] = @au_id">
<SelectParameters>
<asp:ControlParameter ControlID="DropDownList1" Name="state" PropertyName="SelectedValue"
Type="String" /></SelectParameters>
<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:Pubs %>"
SelectCommand="SELECT [au_id], [au_lname], [au_fname], [state] FROM [authors] WHERE ([state] = @state)"
DeleteCommand="DELETE FROM [authors] WHERE [au_id] = @au_id">
<SelectParameters>
<asp:ControlParameter ControlID="DropDownList1" Name="state" PropertyName="SelectedValue"
Type="String" />
</SelectParameters>
</asp:SqlDataSource>
</asp:SqlDataSource>
I would like to to set the parameter assignment in my VB code in Page_Load methodWhen i am using:
SqlDataSource1.SelectParameters("state").DefaultValue = DropDownList1.Text
SqlDataSource1.SelectCommand = "SELECT [au_id], [au_lname], [au_fname], [state] FROM [authors] WHERE ([state] = @state)"I get error message saying: Object reference not set to an instance of an object.
Any ideas how I can set the select parameters (in my VB code) to use the dropdown list I have in my page?
Thanks,
Uzi
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Dec 30, 2005
Hi All,
I'm trying to set the SelectParameters of SqlDataSource from the code behind.
This is my query: SELECT * FROM [UploadSessions] WHERE ([OwnerID] = @OwnerID)And I need to set the value of the @OwnerID at the code behind since it is stored in an object.
How can I do it??
Thanks in advance
Bar
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Mar 14, 2008
<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:CollegeDatabaseConnectionString %>" SelectCommand="SELECT employee_datails.* FROM employee_datails WHERE memberid !=@id OR memberid OR memberid==uid"> <SelectParameters> <asp:SessionParameter Name="id" SessionField="userid" /> <asp:QueryStringParameter Name="uid" QueryStringField="memberid" /> </SelectParameters> </asp:SqlDataSource> I tried like this but it is not working. It takes at a time one sessionparameter or querystringparameter. I want if profile.aspx--> then i want session parameter in select queryIf profile.aspx?id=12432---> then i want querystringparameter in select query.
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Sep 12, 2006
Hi everybody, I am having trouble how to fixed this code. I am trying to supply the parameterinside a stored procedure with a value, and displays error message shown below. If I did not supply the parameter with a value, it works. How to fix this?Error Message:Procedure or function <stored proc name> has too many arguments specified.Thanks,den2005
Stored procedure:
Alter PROCEDURE [dbo].[sp_GetIdeaByCategory]
@CatId <span class="kwd">int</span> = 0
AS
BEGIN
SET NOCOUNT ON;
Select I.*, C.*, U.* From Idea I inner join IdeaCategory C on I.CategoryID = C.IdeaCategoryID inner join Users U on I.UserID = U.UserID Where I.CategoryID = @CatId Order By LastModifiedDate Desc
End
oDataSource.ConnectionString = constr;
oDataSource.SelectCommand = storedProc;<span class="cmt">//storedproc - sp_GetIdeaByCategory</span>
oDataSource.SelectCommandType = SqlDataSourceCommandType.StoredProcedure;
oDataSource.SelectParameters.Add(<span class="st">"@CatId"</span>, catId);
gdvCategories.DataSourceID = oDataSource.ID;
gdvCategories.DataBind(); <<--- Error occured here
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Feb 28, 2007
I'm trying to pass my SqlDataSource a parameter that is defined in the code-behind file for the same page. I've tried the method below but it does not work. Is there a better way?SubmitForm.ascx page: <asp:SqlDataSource ID="SqlDataSource2" runat="server" ConnectionString="<%$ connection string...... %>" SelectCommand="sp_CourseMaterialShipment_GetCourses" SelectCommandType="StoredProcedure"> <SelectParameters> <asp:Parameter DefaultValue="<% ProgramID %>" Name="programID" Type="Int32" /> </SelectParameters></asp:SqlDataSource> SubmitForm.ascx.vb page:Private ProgramID as string = "25"Public ReadOnly Property ProgramID() As String Get Return _ProgramID End GetEnd Property ThanksJason
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Mar 13, 2007
Is there no way to pass identity info back through SqlDataSource? You can only do that with ADO.NET code?
In other words, if I want to run a complex INSERT statement to a table that uses Identity, I can't take that key value back through something like SCOPE_IDENTITY() and use it?
I know how to do this with ADO code, but I can't figure out how to do it purely with SqlDataSource. I was hoping to do this without having to write a new Insert statement -- just using the one that's already in the SqlDataSource control. But there doesn't seem to be any facility for Identity in there. I tried embedding a separate select statement after the insert statement and a semi-colon, but that didn't seem to do anything.
Thanks!
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Jul 15, 2007
how do i pass the paramenters and storedprocedure to dataview from code-behind?
the below code have sqldatasource control but i want to pass through code-behind everything...
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" DataSourceID="SqlDataSource1"
EmptyDataText="There are no data records to display." DataKeyNames="NewsId">
<Columns>
<asp:BoundField DataField="NewsId" HeaderText="NewsId" InsertVisible="False" ReadOnly="True"
SortExpression="NewsId" />
<asp:BoundField DataField="PostDate" HeaderText="PostDate" SortExpression="PostDate" />
<asp:BoundField DataField="PostedBy" HeaderText="PostedBy" SortExpression="PostedBy" />
<asp:BoundField DataField="PostedByName" HeaderText="PostedByName" SortExpression="PostedByName" />
<asp:BoundField DataField="Title" HeaderText="Title" SortExpression="Title" />
<asp:BoundField DataField="Body" HeaderText="Body" SortExpression="Body" />
<asp:BoundField DataField="LastUpdated" HeaderText="LastUpdated" SortExpression="LastUpdated" />
<asp:CheckBoxField DataField="IsVisible" HeaderText="IsVisible" SortExpression="IsVisible" />
</Columns>
</asp:GridView> i have storedprocdure which accepts 4 parameters 3 paramenters which user will supply and 1 parameter will be supplied from code-behindwhat i mean by that is:the 4 parameters storedprocedure accepts is:empid, start_date, end_date (user will supply those 3 parameters)internal_id - which internally pass along with other 3 parmeterssomething like this:internal_id, empid, start_date, end_dateany thoughts?thanks.
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Feb 29, 2008
I’ve got the following piece of ASP code, which updated a
table through the standard edit/update command filed options.
<asp:SqlDataSource ID="SqlDataSource1" runat="server"
ConnectionString="<%$
ConnectionStrings:CAT_SYSTEMConnectionString %>"
OldValuesParameterFormatString="original_{0}"
SelectCommand="sp_diplomaViewQualifications"
UpdateCommand="UPDATE
PsnQualifications SET quantity=@quantity WHERE rowstatus=1 and
qualId=@original_qualId"
DeleteCommand="UPDATE
PsnQualifications SET rowStatus=0, lastUpdateOn=getdate(), lastUpdateBy=@createdBy
WHERE rowstatus=1 and qualId=@original_qualId"
SelectCommandType="StoredProcedure">
<UpdateParameters>
<asp:Parameter Name="original_qualId"
/>
<asp:Parameter Name="quantity"
/>
</UpdateParameters>
<DeleteParameters>
<asp:Parameter Name="original_qualId"
/>
<asp:Parameter Name="createdBy" DefaultValue="TEST"/>
</DeleteParameters>
<SelectParameters>
<asp:Parameter Name="masterKey"
/>
</SelectParameters>
</asp:SqlDataSource>
My problem is that I need to pass the contents
of the VB variable ‘createdBy’ into the DeleteParameters option.
This is defined in the code as: Dim createdBy As String = getUserLoginName(Me.Page)
How do I pass this into the update and/or delete part
of the command field on the ASP page?
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Feb 1, 2007
i have a sqldatasource on my asp.net page -- select * from table where id = @id
i want to set the @id in the backend and set the result to textbox1.text
how do i do this?
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Jun 5, 2008
Either method is in the “ASPX� file
This is a DataSource for a “DetailsView� which has on top of “DeleteCommand� an “InsertCommand� a “SelectCommand� and an “UpdateCommand�. It is related to a GridView and the “@DonationRecID� comes from this GridView.
Method 1. Using an SQL Query – this works fine <asp:SqlDataSource ID="donationDataSource" runat="server" ConnectionString="<%$ ConnectionStrings:FUND %>" DeleteCommand="DELETE FROM [Donations] WHERE [DonationRecID] = @DonationRecID">
Method 2. – using a stored procedure – this bombs because I have no clue as to how to pass “@DonationRecID� to the stored procedure "Donations_Delete". <asp:SqlDataSource ID="donationDataSource" runat="server" ConnectionString="<%$ ConnectionStrings:FUND %>" DeleteCommand="Donations_Delete" DeleteCommandType="StoredProcedure"> How do I pass “@DonationRecID� to the "Donations_Delete" stored procedure?
Does anyone have an example of how I can do this in the “ASPX.CS� file instead.
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Dec 11, 2006
How can I pass NULL to a parameter, if now entry is made in the textbox?
Dim KeywordParam As New SqlParameter("@Keyword", Me.KeyWordText.Text)
MyCommand.Parameters.Add(KeywordParam)
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Jun 4, 2008
hi i am using formview
i have a date field textbox which selects date from ajax calender
now my point is when i make this field blank
at that time in my gridview rather then displaying the date field blank
it shows me the value 1 Jan 1900
this is the default date of sqlserver which it returns when we leave the field ''
now when i pass the value null it automatically takes it as ''
in my class file my function is
public object checkdate(TextBox txtdate) { if (txtdate.Text == "") { return null; } else { return txtdate.Text; } }
in my cs file i wrote object checkemptydate = obj.checkdate(nextvaccinationdate);
string values = patientID + ",'" + vaccination + "',convert(varchar,'" + vaccinationdate + "',106)," + checkemptydate + ",'" + remarks + "'";
note that i even tried this too
string values = patientID + ",'" + vaccination + "',convert(varchar,'" + vaccinationdate + "',106)," + null + ",'" + remarks + "'";
and
string values = patientID + ",'" + vaccination + "',convert(varchar,'" + vaccinationdate + "',106),convert(varchar,'" + checkemptydate + "',106),'" + remarks + "'";
but nothing is working it passes '' not null
how could i solve this problem?
shweta
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Feb 12, 2014
I would like to know if it's possible to pass NULL value to the database. I want to update a column, a parameter has to be passed in to do so, i.e @value = '123'. but if there were no parameter value, i.e @value = '', I want to the value in the database to be NULL. I don't want to pass (''). can this be achieved?
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May 11, 2005
sSQL = "spBPT_Fuel_Set_Status_Approved"
cmdDailyPrices.CommandText = sSQL
cmdDailyPrices.Parameters.Add("@user", "Philippe")
cmdDailyPrices.Parameters.Add("@verbose", "0")
cmdDailyPrices.Parameters.Add("@Day_1_add", rowBand1.Cells(DayParameters.AddFactor).Value)
cmdDailyPrices.Parameters.Add("@Day_1_multiply", rowBand1.Cells(DayParameters.MultiplyFactor).Value)
cmdDailyPrices.Parameters.Add("@Day_2_add", "NULL")
cmdDailyPrices.Parameters.Add("@Day_2_multiply", "NULL")
For @Day_2_add and @Day_2_multiply parameters I want to pass the value as NULL not string "NULL"
could you please let me know how to do this?
Thanks
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May 5, 2004
What is the syntax to pass in null value for boolean data type in VB in the stored procedure?
This is what I tried and it doesn't work.
.Parameters.Append .CreateParameter("@disposition", adBoolean, adParamInput, 1, vbNull)
Thank you.
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Sep 20, 2014
The following t-sql 2012 works fine in sql management studio. However when I place it in a .net 2010 web form application, I am told the sql does not work when the parameter values are null. Thus can you tell me what I can change in the sql below that will accept null as 3 possible input values?
SELECT i.[lastName]
,i.[firstName]
,i.[middleName]
,i.[suffix]
,a.[userid]
[code]...
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Sep 23, 2014
I have a Nullable columns. I want the value to be zero if NULL is passed.
1) having a view for every such table,
2) using ISNULL for needed columns in that view
3) using those view for inserts instead of using tables directly.
This way i can reduce the number of places to use ISNULL in all my SPs.I dont want to make it to NOT NULL, as my application impact will be high. And Default constraint does not work here.
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Jul 12, 2007
Hi there,
I am using SQL Reporting Services to generate reports. I am calling the stored procedure from the reporting services. The procedure has parameters which take null. I am stuck with passing null to the parameter from the reporting services. I shows the error and the report is not generated. Could you please suggest the way to pass null to the stored procedure parameter from the SQL Reporting Services.
Kindly reply me with the possible solution ASAP.
Thanks in advance
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Feb 28, 2008
Hi,
I'm reasonably new to ASP.NET 2.0
I'm in my wizard_FinishButtonClick event, and from here, I want to take data from the form and some session variables and put it into my database via a stored procedure. I also want the stored procedure to return an output value. I do not need to perform a select or a delete.
For the life of me, I can't find a single example online or in my reference books that tells me how to accomplish this task using a SqlDataSource control. I can find lots of examples on sqldatasources that have a select statements (I don't need one) and use insert and update sql statements instead of stored procedures (I use stored procedures).
I desperately need the syntax to:
a) create the SqlDataSource with the appropriate syntax for calling a stored procedure to update and/or insert (again, this design side of VS2005 won't let me configure this datasource without including a select statement...which I don't need).
b) syntax on how to create the parameters that will be sent to the stored procedure for this sqldatasource (including output parameters).
c) syntax on how to set the values for these parameters (again...coming from form controls and session variables)
d) syntax on how to execute, in the code-behind, the stored procedure via the sqldatasource.
If anybody has sample code or a link or two, I would be most appreciative.
Thank you in advance for any help!
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May 31, 2004
How can I pass into the database (@User_fax = null) if the fax form field is empty, from a command type Stored Procedure? For example:
Dim CmdUpdate As New SqlCommand("Form2_NewUser", strConnection)
CmdUpdate.CommandType = CommandType.StoredProcedure
CmdUpdate.Parameters.Add("@User_fax", SqlDbType.char, 9)
CmdUpdate.Parameters("@User_fax").Value = fax.Text()
...
strConnection.open()
CmdUpdate.ExecuteNonQuery
strConnection.close()
And, the stored procedure inside Sql server:
USE market1
GO
ALTER PROC Form2_NewUser
@User_id bigint, @User_fax char(9),...
AS
SET NOCOUNT ON
UPDATE Users
SET User_fax = @User_fax, ...
WHERE User_id = @User_id
SET NOCOUNT OFF
GO
Thank you,
Cesar
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Jan 18, 2008
I'm in sql server mgmt 2005 and i highlighted a stored proc and clicked on "execute". I need to pass a null value in as the first param value to test this stored proc. what is the syntax, is below correct?
EXECUTE @RC = [SomeDataBaseName].[dbo].[sp_SomeStoredProcedure]
null
,'1234'
,1
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Mar 11, 2008
Hi all
How to pass Null parameter in Reporting Services.
Regards
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Dec 20, 2006
I have a sproce that accepts null for one of its parameters I can execute the sproce and enter null and it works fine, it returns all rows. When I try doing this with my GridView and the SQLDataSource it does not work. I need some help in understanding how the SQLDatasource wants a null. Here is what the parameter row of the SQLDataSource looks like.
<asp:ControlParameter ControlID="EnteredByText" DefaultValue="Null" Name="EnteredBy" PropertyName="Text"
Type="String" ConvertEmptyStringToNull="true" />
In my sproce I have setup the parameter as follows;
@EnteredBy Nvarchar(50)=Null
In my WHERE Clause I have:
WHERE (tblClient.EnteredBy = @EnteredBy OR @EnteredBy IS NULL)
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Apr 12, 2008
hi
i am trying to get the output of the select statements of sqldatasource :
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack) { DataView dv; dv = (DataView)(this.SqlDataSourcePictures.Select(DataSourceSelectArguments.Empty)); }
}
the problem is that dv returns null ?
and here is the sqldatasource definition in .aspx page
<asp:SqlDataSource ID="SqlDataSourcePictures" runat="server" ConnectionString="<%$ ConnectionString:con1%>"
SelectCommand="SELECT URL FROM SchoolPictures WHERE (School_Code = @School_Code) AND (SchoolPictureCategory = @SchoolPictureCategory)" OnSelecting="SqlDataSourcePictures_Selecting" OnSelected="SqlDataSourcePictures_Selected">
<SelectParameters>
<asp:QueryStringParameter Name="School_Code" QueryStringField="bid" Type="Int16" />
<asp:ControlParameter ControlID="ddlCat" Name="SchoolPictureCategory" PropertyName="SelectedValue"
Type="Int16" />
</SelectParameters>
</asp:SqlDataSource>
thanks for help
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Jan 13, 2006
Hello,I've been searching the web for quite some time to resolve the problemof "1/1/1900" returning in a datetime field in SQL that resulted from ablank (not NULL) value being passed to it through an ASP page.The solution is that a NULL value needs to passed to SQL from ASP.Thats fine...I understand the why the problem is happening and thesolution around it. HOWEVER, I can't seem to get the proper syntax towork in the ASP page. It seems no matter what I try the "1/1/1900"still results. Below are a few variations of the code that I havetried, with the key part being the first section. Does anyone have anysuggestions?!?!?______________cDateClosed = ""If(Request.Form("dateClosed")= "") ThencDateClosed = (NULL)end ifsql="UPDATE rfa SET "&_"dateClosed='"& cDateClosed &"', "&_"where rfaId='"& Request.Form("RFAID")&"'"_____________________________cDateClosed = ""If(Request.Form("dateClosed") <> "") ThencDateClosed = (NULL)end ifsql="UPDATE rfa SET "&_"dateClosed='"& cDateClosed &"', "&_"where rfaId='"& Request.Form("RFAID")&"'"_____________________________cDateClosed = ""If(Request.Form("dateClosed")= "") ThencDateClosed = NULLend ifsql="UPDATE rfa SET "&_"dateClosed='"& cDateClosed &"', "&_"where rfaId='"& Request.Form("RFAID")&"'"_______________Thanks in advance!!!!
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Dec 3, 2007
Hello,
I have a stored procedure that on two fields it allows null. On the report, I have two DropDownList boxes that are populated with data, however, I would like the user to be able to have the option of not selecting an item from these list, thus passing null to the stored procedure.
When I goto "Report | Report Parameters" I have set these fields to "allow null" and "allow blank" and at the bottom I also gave it the default value of null.
When I run the report in preview mode, those two dropdownlist have a <Select a Value> and my assumption is since I want them to pass null, I will just leave them that way. However, when the report is ran, I receive an error saying "Please select a value for the parameter: (my parameter)". So it forces me to select an option at which I don't want to do.
How can I set this to pass a null?
Thanks,
Flea#
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Aug 23, 2007
I am using a SQLDataSource with Stored Procedures. The Select, Insert and Update all work well. However I cannot get the delete to work. My stored procedures are tested and verified and the parameter names are the same as the source columns. When I try to run the delete an error that the stored procedure expects the parameter @locationStationId, however this value passes properly for the Update command?!? I tried to change the parameter to original_locationStationID to pass the original value, however this result in Null being passed for the parameter.
I cannot understand why this works for Update and passes the location ID, but will not work for DELETE. Can anyone shed any light onto the matter?
Thanks.OldValuesParameterFormatString="original_{0}" UpdateCommand="spUpdateLocation" UpdateCommandType="StoredProcedure"
DeleteCommand="spDeleteLocation" DeleteCommandType="StoredProcedure">
<DeleteParameters>
<asp:Parameter Name="locationStationId" Type="String" />
</DeleteParameters>
<InsertParameters>
<asp:Parameter Name="locationStationId" Type="String" />
<asp:Parameter Name="locationType" Type="String" />
<asp:Parameter Name="locationName" />
<asp:Parameter Name="division" Type="String" />
</InsertParameters>
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Aug 29, 2006
Hi -- I'm starting an ASP.NET 2.0 application which contains a page with a checkbox and gridview control on it. In its default state the gridview displays all the records from a table pulled from a SQL Server database (via a SqlDataSource object). When the user checks the checkbox, I want the gridview to display only the records where one of the columns is not null. But I've been unable to construct the WHERE clause of the SQLDataSource object correctly. I see that I can hard-code the SqlDataSource object so that the column to be filtered is always NULL or always NOT NULL. But I want this filtering to be more dynamic such that the decision to show all or non-null records happens at run-time. Should I be using two SqlDataSource objects -- one for the NOT NULL condition and one for the "all records" condition? Then when the user checks the checkbox, the gridview would be configured to point to the appropriate SqlDataSource object. (???) Seems like a bit of overhead with that approach. I'm hoping there's a more elegant way to get this done. Please let me know if you need more information. Thanks in advance. Bill
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Mar 20, 2008
I am attempting to create search parameters for a gridview control and I am experiencing a small issue. When I get to a date parameter I am unable to display null values.
I setup a sqldatasource and created the parameters below to handle the selections for minimum date required and the maximum date required for the date columns in the database. The problem is I do not know how to display null dates.
Is there a way to incorporate something into the search page to show null dataes?
Sql Where Clause 1 WHERE (LSS_Requests.TypeCode = @TypeCode) AND (LSS_Requests.PersonNo LIKE '%' + @PersonNo + '%') AND
2 (LSS_Requests.TicketNo LIKE '%' + @TicketNo + '%') AND (LSS_Requests.Name LIKE '%' + @Name + '%') AND
3 (LSS_Requests.RequestName LIKE '%' + @RequestName + '%') AND (LSS_Requests.RequiredDate >= @Fromrequireddate) AND
4 (LSS_Requests.RequiredDate <= @ToRequiredDate) AND (LSS_Requests.OriginationDate >= @SearchFromOriginationDate) AND
5 (LSS_Requests.OriginationDate <= @SearchToOriginationDate) AND (LSS_Requests.LastUpdated >= @SearchFromUpdatedDate) AND
6 (LSS_Requests.LastUpdated <= @SearchUpdatedToDate) AND (LSS_Users_1.userFullName LIKE @SearchDDLUsers) AND
7 (LSS_Users.userFullName LIKE @SearchddlCIAsignee) AND (LSS_Requests.TypeCode = 'CC') AND (LSS_lu_Status.stNm LIKE '%' + @StatusName + '%')
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Mar 28, 2008
The problem I'm having is described below all this code.---------------------------------------------------------My content page has a SqlDataSource: <asp:SqlDataSource ID="sqlGetUserInfo" runat="server"
ConnectionString="<%$ ConnectionStrings:RemoteNotes_DataConnectionString %>" SelectCommand="SELECT [UserFirstName], [UserLastName] FROM [Users] WHERE ([UserGUID] = @UserGUID)"
onselecting="sqlGetUserInfo_Selecting"> <SelectParameters> <asp:Parameter Name="UserGUID" Type="String" /> </SelectParameters> </asp:SqlDataSource> -----------------------------------------------------Inside my OnSelecting event, I have: protected void sqlGetUserInfo_Selecting(object sender, SqlDataSourceSelectingEventArgs e) { sqlGetUserInfo.SelectParameters["UserGUID"].DefaultValue = Membership.GetUser().ProviderUserKey.ToString(); } ---------------------------------------------------------------------And, inside my Page_Load, the relevant code is: //String strUserFirstName = ((DataView)sqlGetUserInfo.Select(DataSourceSelectArguments.Empty)).Table.Rows[0]["UserFirstName"].ToString();
DataView dvUserDetails = (DataView)sqlGetUserInfo.Select(DataSourceSelectArguments.Empty);
if ((dvUserDetails != null) && (dvUserDetails.Count > 0)) { DataRow drUserInfo = dvUserDetails.Table.Rows[0]; lblHelloMessage.Text = "Hello, " + drUserInfo["UserFirstName"].ToString() + ((drUserInfo["UserLastName"].ToString() == "") ? "" : " " + drUserInfo["UserLastName"].ToString()); } ---------------------Now, here's the problem. My "if" statement is never executing because "dvUserDetails" is null. However, when I break the execution and put awatch on the actual Select() statement, it shows a DataView with the correct return rows! You can see the commented line where I tried tobypass the DataView thing (just as a test), but I get an object reference is null error.The weird thing is that it was working fine one minute, then started getting "funky" (working, then not, then working, then not), and now it just doesn't work at all. All thiswithout me changing one bit of my code because I was checking out some UI flow and stopping and restarting the application. I've tracked downthe temporary files directory the localhost web server runs from, deleted all those files, and cleaned my solution. I've even triedrebooting, and nothing seems to make it work again.My relevant specs are VS2008 9.0.21022.8 RTM on Vista Enterprise x64.
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Oct 16, 2006
Hi,I have an updatable DataGrid linked to a SQLDataSource in a web site developed using VS2005. Update works fine unless a value in the existing row is Null. Only one column in the database allows nulls.Putting a debug stop in the SqlDataSource1_Updating event, I checked the parameter value in the Immediate window and got the following result:?e.Command.Parameters(16){System.Data.SqlClient.SqlParameter}System.Data.SqlClient.SqlParameter: {System.Data.SqlClient.SqlParameter}DbType: Int32 {11}Direction: Input {1}IsNullable: FalseParameterName: "@original_FiresolveJobNo"Size: 0SourceColumn: ""SourceColumnNullMapping: FalseSourceVersion: Current {512}Value: NothingIs there a property I can set to generate a suitable Null check clause for the Update statement?Many Thanks,Keith.
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