I have the following selectcommand in a SqlDataSource, my problem is that it only returns data when I have values for both Parameters. I need it to also return data when only 1 has a value.
SelectCommand="SELECT user.UserId, UserProfiles.Company, UserProfiles.Address, UserProfiles.JV2, UserProfiles.DB1, aspnet_Membership.Email, user.UserName
FROM user INNER JOIN UserProfiles ON user.UserId = UserProfiles.UserId WHERE (#UserName IS NULL OR #UserName = '' OR user.UserName LIKE '%'+#UserName+'%' ) AND
(#Email IS NULL OR #Email = '' OR user.Email LIKE '%'+#Email+'%')
with the following Parameters
<SelectParameters>
<asp:ControlParameter Name="Email" ControlID="eMail" PropertyName="Text" Type="String" />
<asp:ControlParameter Name="UserName" ControlID="userName" PropertyName="Text" Type="String" />
When I run the query in SQL Server Management Studio and it returns data when I enter only 1 value or both.
When I run the form I only get data returned when I enter values in to both fields.
I found this post: SqlDataSource SelectCommand using LIKE does not work which is similar but the solution hasn't helped.
Obviously I've done something wrong, I just can't see what.
I have had a similar issue and adding this to the sqldatasource fixed it:
<asp:SqlDataSource CancelSelectOnNullParameter="false">
Related
I am using a DetailsView to show only the records in my database that meet the criteria of fulfiling the QueryString value which I have prescribed, and are equal to the current User.Identity.Name authenticated user.
I have gotten this far but I don't know what I am doing wrong as the page seems to be blank still when I pass a value I know is logical and meets both criteria above in the Query String at runtime.
I'll provide you with the relevant snippets rather than posting the full DetailsView code:
SQL Select Command:
SELECT * FROM [Events] WHERE ([EventID] = ?) AND (CreatedBy = #MemberName)
SELECT Parameters:
<SelectParameters>
<asp:QueryStringParameter DefaultValue="1" Name="EventID" QueryStringField="ID"
Type="Int32" />
<asp:parameter name="MemberName" type="String" />
</SelectParameters>
And finally the Code Behind to associate User.Identity.Name with the MemberName parameter:
Protected Sub SqlDataSource1_Selecting(sender As Object, e As SqlDataSourceSelectingEventArgs)
e.Command.Parameters(1).Value = Me.User.Identity.Name
End Sub
What could be going wrong here?
I'm working on asp.net. I Have a SqlDataSource with a query hardcoded on selectcommand:
<asp:SqlDataSource ID="DataSource1" runat="server" CancelSelectOnNullParameter="False"
ConnectionString="<%$ ConnectionStrings:S.Properties.Settings.ConnectionString %>"
SelectCommand="SELECT * FROM [table]
WHERE ([col1] like Case #col1_param When null Then col1 Else #col1_param End)
and ([col2] like Case #col2_param When null Then col2 Else #col2_param End)"
SelectCommandType="Text">
<SelectParameters>
<asp:ControlParameter ControlID="TextBox1" Name="col1_param" PropertyName="Text"
Type="String" />
<asp:ControlParameter ControlID="TextBox2" Name="col2_param" PropertyName="Text"
Type="String" />
</SelectParameters>
What I want is that if you enter data on one textbox only, the data will display according with that textbox value only on the where clause. And if no values are placed for neither of the textboxes, the the query executes as if there is no where.
Right now with this code,what happens is if you put on one textbox only no data is displayed. The same if all textboxes are empty.
I don't want to use sql stored procedure.
How can I solve this?
Thanks...
Assuming it passes null when there is no text entered, otherwise you will need to check for the empty string
SelectCommand="SELECT * FROM [table]
WHERE ([col1] like '%#col1_param%' or #col1_param is null)
and ([col2] like '%#col2_param%' or #col2_param is null)"
It sounds like you want your query to optionally search a column.
You can use the format
WHERE #col1_param IS NULL OR [col1] LIKE '%#col1_param%'
to property handle the case where the parameter is not specified.
See my question on the issue for a full answer. Granted it was done as a stored procedure, but the concept will hold the same for your SQLDataSource.
For a Gridview:
I am trying to use a stored procedure for the first time in a SQLDataSource for the UpdateCommand:
<asp:SqlDataSource ID="TECT_DataSource" runat="server"
ConnectionString="<%$ ConnectionStrings:OracleConnectionString %>"
ProviderName="<%$ ConnectionStrings:OracleConnectionString.ProviderName %>"
SelectCommand="SELECT MPID, User_Id, Last_Name, First_Name
FROM Scripts.vw_Tect_Exam"
UpdateCommand="P_TECT_UPD_EXAM_ID" UpdateCommandType="StoredProcedure">
<UpdateParameters>
<asp:Parameter Name="MPID" Type="Int32" />
<asp:Parameter Name="User_Id" Type="String" />
</UpdateParameters>
</asp:SqlDataSource>
I am wondering how the UpdateParameters get their values set, since I only specify a name?
The procedure P_TECT_UPD_EXAM_ID expects two parameters as input: "in_MPID" and "in_UserId"
I am also wondering how to map those values to the input parameters for the procedure as the names are different?
You can set them something like this :
Example : In the example MPID is the sql parameter name #MPID
<UpdateParameters>
<asp:ControlParameter Name="MPID" ControlID="MPID_TextBox" PropertyName="Text />
<asp:ControlParameter Name="User_Id" ControlID="User_Id_TextBox" PropertyName="Text />
</UpdateParameters>
Correction: Just spotted your proc param names so it must be
<asp:ControlParameter Name="in_MPID" ...............
<asp:ControlParameter Name="in_User_Id" ...............
Hope this helps....
I really wouldn't use a SqlDataSource. It will be much easier if you make the call to the database in the code-behind (or a better yet in a Data Access Layer).
If you use a SqlDataSource the stored procedure call will only be available on that page. Every time you want to make that same call you will have to copy and paste the SqlDataSource or make a UserControl out of it.
The following example uses the Entity Framework to connect to the database and retrieve records:
public List<Record> GetAllRecordsByUserName(string credentials)
{
List<Record> recordList;
using (CustomEntities context = new CustomEntities())
{
IQueryable<Section> recordQuery = from records in context.Records
where records.UserName == credentials
select records;
recordList = recordQuery.ToList<Record>();
}
return recordList;
}
<asp:SqlDataSource ID="workHourListSqlDataSource" runat="server" ConnectionString="<%$ ConnectionStrings:PlaningSystemConnectionString %>"
SelectCommand="SELECT *
FROM Date AS t1 FULL OUTER JOIN (SELECT * FROM WorkHoursEntry WHERE (WorkerID LIKE #WorkerID)) AS t2 ON t1.PKDate = t2.WorkDay
LEFT OUTER JOIN Worker AS t3 ON t2.WorkerID = t3.WorkerID
LEFT OUTER JOIN (SELECT * FROM Project WHERE ProjectID IN(#Project)) AS t4 ON t2.ProjectID = t4.ProjectID"
FilterExpression="YearMonth IN({0})">
<FilterParameters>
<asp:ControlParameter ControlID="yearMonthFilterLabel" Name="YearMonth"
PropertyName="Text" Type="String" />
</FilterParameters>
<SelectParameters>
<asp:ControlParameter ControlID="WorkerIDLabel" Name="WorkerID"
PropertyName="Text" Type="String" />
<asp:ControlParameter ControlID="projectFilterLabel" Name="Project"
PropertyName="Text" Type="String" />
</SelectParameters>
</asp:SqlDataSource>
Greetings, I have problem with #Project ControlParameter, problem is I don't know how to pass several values and FilterParameters method won't work as I want. Is there any way to pass several variables ? (without using c#).
projectFilterLabel.Text = 'aaa, bbb, ccc';
Basically what I want to do is to select all values from Date table and join them with some values from Project table and output to DataList.
Any help appreciated, I just started learning asp.net
Thanks.
In your asp form create a javascript function to handle the Opening of the window fro your report. In this function set a parameters (var pPassParm) value to a textbox.text (hidden on your parent form) and pass this value with opening of the window ( /reportfolder/report.asx?pPassparm )
On your execution code, create a piece of code that concatenates all your parameters into one string ( textbox.text = 'StartDate = 2012/01/01, EndDate = 2012/02/01, Surname = Jones' etc) before opening the new form for the report.
Refer to post Open a new window and pass parameters to it vb.net asp
I solved this problem by creating new querys with parameters inside (replacing older ones) for SqlDataSource on events.
I have a situation where I am using a detailsview with the SQLDataSource to update a record in an SQL Server Database.
My issue is that textfields that are not completed are converted to NULL in the database. This causes issue as the website using third party web services that can not handle to NULL DB value.
Is there a way that if the textfield is left empty that when the update or insert occurs, that the data is converted to "" (blank string) instead of the NULL value?
Since you are using SQLDataSource, when you insert or update a record, there is a ConvertEmptyStringToNull property of the Insert/update parameters. Set this to false, and set the string to empty, if no value is provided to that control. Look at the example below:
<asp:SqlDataSource ID="SqlDataSource1" runat="server">
<InsertParameters>
<asp:ControlParameter ConvertEmptyStringToNull="false" />
</InsertParameters>
<UpdateParameters>
<asp:ControlParameter ConvertEmptyStringToNull="false" />
</UpdateParameters>
</asp:SqlDataSource>
You could set a default value of "" on the database table column. Or in your SQL select statements you could do something like
SELECT IsNull(ColName,"")
FROM SomeTable
The