Unable To Fill Dataset
Apr 26, 2008
I'm trying without success to do a select command against the dataadapter and then fill a dataset. I'm using VS 2008, and I've set my project to the 2.0 framework. What is wrong is I get an empty dataset (The count on the dataset = 0. )with the code below. The database is connecting fine, so I assume it's something to do with the commandtext. The database is SQL CE 3.5.
Any ideas would be appreciated.
Code Snippet
Public Shared Function Init() As DataSet
'Todo: need to encrypt the password
Dim instance As New SqlCeConnection("Data Source=|DataDirectory|PBdata.sdf")
Dim selectcmd As SqlCeCommand = instance.CreateCommand
selectcmd.CommandText = "Select * From [dusers]"
Dim adp As New SqlCeDataAdapter(selectcmd)
Dim ds As New DataSet("dusers")
adp.Fill(ds)
Return ds
End Function
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May 11, 2006
Can a SqlDataSource be used to fill a DataSet? If so, will you show me how it's done?
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Jan 2, 2007
A - Must Declare variable @ZipEntry - error generates when I run the code below. If I hard code the "WHERE ZipCode = 72364" it works (display messed up but it works - don't know how to code in the line breaks yet). But when I try to pass in the value of a TextBox called txtZipEntry on the page I get this error. Am I not delcaring @ZipCode in the correct spot ?
Thank you,
public partial class ContractorResultsDisplay : System.Web.UI.Page{string ZipEntry;protected void Page_Load(object sender, EventArgs e){
ZipEntry = txtZipEntry.Text;SqlConnection con = new SqlConnection(ConfigurationManager.ConnectionStrings["localhomeexpoConnectionString2"].ConnectionString);string sql = "Select [City], [StateCode], [AreaCode], [Latitude], [Longitude], [ZipCode] From [ZipCensus11202006] Where ZipCode > @ZipEntry";SqlCommand cmd = new SqlCommand(sql, con);cmd.Parameters.AddWithValue("@ZipEntry", ZipEntry);SqlDataAdapter da = new SqlDataAdapter(sql, con);
DataSet ds = new DataSet();da.Fill(ds, "ZipCodeRefs");StringBuilder htmlStr = new StringBuilder("");
foreach (DataRow dr in ds.Tables["ZipCodeRefs"].Rows){htmlStr.Append(dr["City"].ToString());}
ZipContent.Text = htmlStr.ToString();
}
}
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Jul 21, 2005
The following is NOT filling the dataset or rather, 0 rows returned.....The sp.....CREATE PROCEDURE dbo.Comms
@email NVARCHAR ,@num INT OUTPUT ,@userEmail NVARCHAR OUTPUT ASBEGIN DECLARE @errCode INT
SELECT fldNum, fldUserEmailFROM tblCommsWHERE fldUserEmail = @email SET @errCode = 0 RETURN @errCode
HANDLE_APPERR:
SET @errCode = 1 RETURN @errCodeENDGOAnd the code to connect to the sp - some parameters have been removed for easier read.....
Dim errCode As Integer
Dim conn = dbconn.GetConnection()
Dim sqlAdpt As New SqlDataAdapter
Dim DS As New DataSet
Dim command As SqlCommand = New SqlCommand("Comms", conn)
command.Parameters.Add("@email", Trim(sEmail))
command.CommandType = CommandType.StoredProcedure
command.Connection = conn
sqlAdpt.SelectCommand = command
Dim pNum As SqlParameter = command.Parameters.Add("@num", SqlDbType.Int)
pNum.Direction = ParameterDirection.Output
Dim pUserEmail As SqlParameter = command.Parameters.Add("@userEmail", SqlDbType.NVarChar)
pUserEmail.Size = 256
pUserEmail.Direction = ParameterDirection.Output
sqlAdpt.Fill(DS)
Return DS
Like I said, a lot of parameters have been removed for easier read.And it is not filling the dataset or rather I get a count of 1 back and that's not right.I am binding the DS to a datagrid this way....
Dim DScomm As New DataSet
DScomm = getPts.getBabComm(sEmail)
dgBabComm.DataSource = DScomm.Tables(0)
And tried to count the rows DScomm.Tables(0).Rows.Count and it = 0Suggestions?Thanks all,Zath
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Jun 12, 2006
Hi,I am unable to load data in dataset via sqlconncetion object. Always i get error at ds.fill.Thanks in advance. PLS Help.Sudipta Datta www.geocities.com/dattasudipta
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Oct 13, 2006
this may seem like a real newbie question, but I got no clue how to solve this problem. When I was working in Visual Studio 2003, whatever I wanted to fill a dataset with data, I was using a SqlDataAdapter that I created like this adapTest.Fill(dsTest); But now, I cant seem to find the sqldataadapter anywhere, I can just create (on the visual interface of one of my page of my aspx project) dataset, but cant find anywhere a adapter to put an SQL instruction into...maybe theres a new way to do this in Visual Studio 2005 that I dont know about. Im not sure if I was clear enough, but what I want in the end is to be able to use my dataset like that dsTest.Tables.Rows[0]["a column"].ToString()by filling the dataset with data like I was able to do in VS2003. Thanks for taking the time to read this.
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Jan 16, 2007
Hi,
I got a weird problem. I've created a sp that takes in the query analyzer 7 seconds to run. When i put in my code dataAdapter.Fill(dataSet.Tables(0)) it takes forever to finish!!
What's going on?
Any thoughts highly appreciated.
t.i.a.,ratjetoes.
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Mar 6, 2007
I need to display something like "Results x-y of z." The problem is, I can't figure out how to get the right value for z.I am using SqlDataAdapter and Fill()ing a DataSet with subset x through y of the result set. How can I get the right value for z?
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Dec 17, 2007
Hello,
I have been reading about how you shouldn't build dynamic SQL statements (see TextBox1.Text in line 3) and should use parameters instead, but I haven't yet found how to create a SELECT statement with a parameter that fills a dataset. If anyone can show me the correct way of doing this I would appreciate it so I can add it to my code snippets for proper coding practices. Thanks in advance for any assistance.
string strConnectionString = ConfigurationManager.ConnectionStrings["sqlConnectionString"].ConnectionString;
SqlConnection myConnection = new SqlConnection(strConnectionString);
-> string sqlSelect = "select * from customers where city = " + "'" + TextBox1.Text + "'";
SqlDataAdapter da = new SqlDataAdapter(sqlSelect, myConnection);
DataSet ds = new DataSet();
myConnection.Open();
da.Fill(ds, "myDataset");
myConnection.Close();
jcfrasco
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Mar 15, 2007
I'm working in a ASP.NET 2.0 application with a SQL Server 2000 database on the back end. I have a strongly typed dataset in the application that calls a stored procedure for the select. I'm having trouble filling the dataset at runtime though.
I am trying to use a character string query because I setup different columns to be pulled from a table each time and in a different order so my T-SQL looks like this:
set @FullQuery = 'Select ' + @FieldsinOrder + ' from tblExample'exec (@FullQuery)
This works fine in query analyzer. The results return and display correctly. However, when I run the application, the dataset does not get filled. It is like the results do not output to the application.
If I change the query to be a normal select it works. For example:
select * from tblEmample
That works fine. What is it about a select query setup as a character string and then executed that ASP.NET doesn't like?
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Aug 24, 2006
I have an off the wall situation that occurs when I try to fill a dataset that has already been filled with data. The issue with the DataSet in and of itself was a mistake I made and is not relevant to this forum.
What would appear to be relevant though, is the fact that after the exception was caught, I could not longer query data from the SQL Express database that was included in my project. In other words, when I tried to view the data in the IDE by selecting "Show Table Data," I received a message telling me that the query was running and eventually it timed out.
To fix the problem in my application, I obviously eliminated the bad code. But to be able to query the database again, I had to physically restart my computer (yes, I probably could have restarted the service, I know).
So my question is, has anyone run into this phenomenon before? If so, is there a way to prevent it other than the obvious, which is to clear the DataTables in my DataSet before filling them?
It's not that big a deal, but it is kind of a pain in the rear to have to restart everything because of a stupid coding mistake on the client side while I'm developing an app.
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Mar 27, 2007
Hi there !
Thanks for taking the time to read this thread.
I don't know whether anyone has this problem, but I am definitely not using the right keywords to search for a thread.
My situation is this...
I have a dataset that has values to fill cells to multiple tables in a report.
However, I only want to select specific data from the dataset to fill textboxes and others.
I cannot change the stored procedure, but the sample of the data is shown below:-
Row Stat Val
0 dtRpt1 02/01/2005
1 Value1 1
2 Value2 2000
3 dtMailSent 02/28/2005
4 Value3 0
5 Value4 5
6 Value5 658
I know it looks weird, but the row really represents which "row" or textbox is it to fill with the Val. The Stat Column is just a way to make sure that I am filling the right values.
so my new report would have multiple tables to denote different categories.
In my first table, I tried putting the cells as follows:-
(expressions are highlighted in italics and bold)
TextBox1 =IIF(Fields!Row.Value =0, Fields!Val.Value,"")
Table1
Column1
DetailRow1 =IIF(Fields!Row.Value =1, Fields!Val.Value,"")
DetailRow2 =IIF(Fields!Row.Value =2, Fields!Val.Value,"")
Table2
Column1
DetailRow1 =IIF(Fields!Row.Value =3, Fields!Val.Value,"")
DetailRow2 =IIF(Fields!Row.Value =4, Fields!Val.Value,"")
DetailRow3 =IIF(Fields!Row.Value =5, Fields!Val.Value,"")
DetailRow4 =IIF(Fields!Row.Value =6, Fields!Val.Value,"")
I only expect this report to print out one page holding the previous values.
However, it ended up printing like this
----------------------------------------------------------
Table1
Column1
DetailRow1 1
DetailRow2
Column1
DetailRow1
DetailRow2 2000
Table2
Column1
DetailRow1 02/28/2005
DetailRow2
DetailRow3
DetailRow4
Table2
Column1
DetailRow1
DetailRow2 0
DetailRow3
DetailRow4
Table2
Column1
DetailRow1
DetailRow2
DetailRow3 5
DetailRow4
Table2
Column1
DetailRow1
DetailRow2
DetailRow3
DetailRow4 658
------------------------------------------------------
I tried putting it into the headerrows instead of DetailRows, and it ended up printing the last value.
Is there anyway to do this ? print all the values out in one table ? I tried using textboxes, but I think I got my expression wrong.
Is this the correct expression ?
=IIF((Fields!Row.Value,"Dataset") =1, (Fields!Val.value, "Dataset"), "")
and it give me an error
The value expression for the textbox €˜textbox5€™ contains an error: [BC30455] Argument not specified for parameter 'FalsePart' of 'Public Function IIf(Expression As Boolean, TruePart As Object, FalsePart As Object) As Object'.
Appreciate any advice or suggestion for this scenario !
Thanks!
Bernard
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Apr 11, 2007
I'm trying to figure this out
I have a store procedure that return the userId if a user exists in my table, return 0 otherwise
------------------------------------------------------------------------
Create Procedure spUpdatePasswordByUserId
@userName varchar(20),
@password varchar(20)
AS
Begin
Declare @userId int
Select @userId = (Select userId from userInfo Where userName = @userName and password = @password)
if (@userId > 0)
return @userId
else
return 0
------------------------------------------------------------------
I create a function called UpdatePasswordByUserId in my dataset with the above stored procedure that returns a scalar value. When I preview the data from the table adapter in my dataset, it spits out the right value.
But when I call this UpdatepasswordByUserId from an asp.net page, it returns null/blank/0
passport.UserInfoTableAdapters oUserInfo = new UserInfoTableAdapters();
Response.Write("userId: " + oUserInfo.UpdatePasswordByUserId(txtUserName.text, txtPassword.text) );
Do you guys have any idea why?
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May 26, 2015
I have a report with multiple datasets, the first of which pulls in data based on user entered parameters (sales date range and property use codes). Dataset1 pulls property id's and other sales data from a table (2014_COST) based on the user's parameters. I have set up another table (AUDITS) that I would like to use in dataset6. This table has 3 columns (Property ID's, Sales Price and Sales Date). I would like for dataset6 to pull the Property ID's that are NOT contained in the results from dataset1. In other words, I'd like the results of dataset6 to show me the property id's that are contained in the AUDITS table but which are not being pulled into dataset1. Both tables are in the same database.
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Oct 1, 2015
I have a small number of rows in a dataset, Table 1. There is a CLOB on a large dataset, Table 2. They join on a PK. I would like to retrieve this CLOB and add it to the data flow for Table1. In short I want to emulate the following:
Table 1:Â Small table without CLOB, 10 rows.Â
Table 2: Large table with CLOB, 10,000,000 rows
select CLOB
from table2
where pk = (select pk from table1)
I want this to return the CLOBs for the small number of rows in Table 1. The PK is indexed obviously so it should be a fast look up.
Table 1 and Table 2 live on different Oracle databases. How do I perform this operation efficiently in SSIS? It seems the Lookup and Merge Join wont do this.
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May 27, 2015
I have a report with multiple datasets, the first of which pulls in data based on user entered parameters (sales date range and property use codes). Dataset1 pulls property id's and other sales data from a table (2014_COST) based on the user's parameters.
I have set up another table (AUDITS) that I would like to use in dataset6. This table has 3 columns (Property ID's, Sales Price and Sales Date). I would like for dataset6 to pull the Property ID's that are NOT contained in the results from dataset1. In other words, I'd like the results of dataset6 to show me the property id's that are contained in the AUDITS table but which are not being pulled into dataset1. Both tables are in the same database.
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May 21, 2007
I found out the data I need for my SQL Report is already defined in a dynamic dataset on another web service. Is there a way to use web services to call another web service to get the dataset I need to generate a report? Examples would help if you have any, thanks for looking
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Oct 12, 2007
Is there any way to display this information in the report?
Thanks
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May 7, 2008
Hi,
I have a stored procedure attached below. It returns 2 rows in the SQL Management studio when I execute MyStorProc 0,28. But in my program which uses ADOHelper, it returns a dataset with tables.count=0.
if I comment out the line --If @Status = 0 then it returns the rows. Obviously it does not stop in
if @Status=0 even if I pass @status=0. What am I doing wrong?
Any help is appreciated.
ALTER PROCEDURE [dbo].[MyStorProc]
(
@Status smallint,
@RowCount int = NULL,
@FacilityId numeric(10,0) = NULL,
@QueueID numeric (10,0)= NULL,
@VendorId numeric(10, 0) = NULL
)
AS
SET NOCOUNT ON
SET CONCAT_NULL_YIELDS_NULL OFF
If @Status = 0
BEGIN
SELECT ......
END
If @Status = 1
BEGIN
SELECT......
END
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Nov 27, 2007
hi i dont know how to do type casting.
this.Variables.ObjVariable this objVariables i have create in variable place below like this
Name:Variable datatype int32 values 0
Name: NumberofRowsdatatype int32 values 10000
Name: ObjVariable datatype Object
My code
public override void CreateNewOutputRows()
{
/*
Add rows by calling the AddRow method on the member variable named "<Output Name>Buffer".
For example, call MyOutputBuffer.AddRow() if your output was named "MyOutput".
*/
System.Data.OleDb.OleDbDataAdapter oLead = new System.Data.OleDb.OleDbDataAdapter();
//System.Data.Odbc.OdbcDataAdapter oLead = new System.Data.Odbc.OdbcDataAdapter();
//SqlDataAdapter oLead = new SqlDataAdapter();
System.Data.DataTable dt = new System.Data.DataTable();
DataSet ds = (DataSet)this.Variables.ObjVariable; // here i am getting error
ds.Tables.Add(dt);
ADODB.Record rs = new ADODB.Record();
oLead.Fill(ds, rs, "Variables");
foreach (DataRow row in dt.Rows)
{
{
Output0Buffer.AddRow();
Output0Buffer.Column = (int)row["Column"];
Output0Buffer.Column1 = row["Column1"].ToString();
Output0Buffer.Column2 = row["Column2"].ToString();
}
}
}
}
This is the error
Unable to cast object of type 'System.Object' to type 'System.Data.DataSet'.
at ScriptMain.CreateNewOutputRows()
at UserComponent.PrimeOutput(Int32 Outputs, Int32[] OutputIDs, PipelineBuffer[] Buffers)
at Microsoft.SqlServer.Dts.Pipeline.ScriptComponentHost.PrimeOutput(Int32 outputs, Int32[] outputIDs, PipelineBuffer[] buffers)
thanks
kedaranth
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Apr 11, 2008
i have two datasets.one dataset have old data from some other database.second dataset have original data from sql server 2005 database.both database have same field having id as a primary key.i want to transfer all the data from first dataset to new dataset retaining the previous data but if old dataset have the same id(primary key) as in the new one then that row will not transfer.
but if the id(primary key) have changed values then the fields updated with that data.how can i do that.
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Dec 19, 2006
Hi,
I have two datasets in my report, D1 and D2.
D1 is a list of classes with classid and title
D2 is a list of data. each row in D2 has a classid. D2 may or may not have all the classids in D1. all classids in D2 must be in D1.
I want to show fields in D2 and group the data with classids in D1 and show every group as a seperate table. If no data in D2 is available for a classid, It shows a empty table.
Is there any way to do this in RS2005?
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Sep 3, 2015
Using this IIF statement:
=CountDistinct(IIF(Fields!Released_DT.Value = Fields!Date2.Value, Fields!Name.Value,
Nothing))
Released_DT = a date - 09/03/2015 or 09/02/2015
Date2 = returns another date value in this case 09/03/2015
What I'm trying to do is: count distinct number of people (Fields!Name.Value) if the Relased_DT = Date2.My IIF statement is returning a zero value.
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May 7, 2008
hi,
how can i fill dropdownlist through code not through visit.and i need to know which is fastest and easy way for web application throught this below query.
cmd.Connection = conn
conn.Open()Dim ds As New DataSet
cmd.CommandText = "SELECT Emp_Name,Emp_ID FROM Employee "
da.Fill(ds, "data")
cmd.ExecuteNonQuery()
conn.Close()
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Apr 3, 2001
Currently we have tables (in sql 6,5), many of them do not have primary keys.
While I was trying to re-index (re-org), many of them got an error:
"fillfactor 204 is not a valid percentage; fillfactor must be between 1 and 100."
(many tables' fillfactor exceed 100 or more...)
How can I fix them so I can upgrade to sql 7 ?
Thank you for your help.
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Aug 13, 2001
I am really confused about this whole fill factor thing. The way I understand it, is if you have a table whose data remains pretty much static, you should use a higher fill factor. Suppose you had a database where you had at most 150 transactions a day that changed the data, should the fill factor be left at the default(0) or increased? How do you determine how much to increase it? Is there a rule of thumb that suggests if you have x number of changes against a table, you should have a fill factor between y and z percent?
Please Help
Chris
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Mar 12, 2001
Hi all,
While creating indexes for a table, I specified a fill factor of 70%. I then inserted a few hundred rows into the table. Is it possible to check to what percent the pages are full after the rows have been inserted?
Thanks in advance,
Praveena
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Jul 16, 1999
You have a db with 50,000 records and you want to add 100,000 more. What should the right fill factor be? Is there a way to "calculate" a fill factor if you don't want to use default? Any help is appreciated. Thank you.
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Jan 18, 2005
If fill factor is specified as 100 for a table what will be the impact of this?I want to know any updation or insertion will be possible or not?
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Aug 27, 2007
Hellow, everyone"
I have a web online table that is inserted about 1500 record one day. Each night, a DST is running to pull all data to anther database. How to set fill factor on a one column index to get the best performance? Current fill factor is 80%.
Thanks
ZYT
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Jul 13, 2007
Hi experts, I would like to ask regarding FILL FACTOR. I observed that our system's loading is a bit slow, and some of the modules take 1 to 2 minutes loading. Maintenance activity is regularly executed based on the scheduled sets. Then I tried to checked the tables indexes/keys turns out that the FILL FACTOR is set to ZERO(0). I would like to know if the FILL FACTOR set to zero will be a factor for the system to slow down..????
Darren Bernabe Blanco
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Oct 4, 2007
How do you fill out an order form;
there is an Order(OrderID, CustomerID, Subtotal, Tax, Total), Orderdetail(OrderID, ProductID, Qty, UnitPrice, ExtendedPrice)
How do I get those tow together in the same form, which can be called order, or invoice it doesn't matter as long as I can get them in the same form numberd like order 1, then order 2, ect. is it by stored procedure, or by ado.net, or both ? or is there anywhere I can find information? like a book? or website ?
For example;
Order no. 1, Customer 3,
Product 3, Qty 2, UnitPrice $20.00, ExtendedPrice $40.00
Product 2, Qty 3, UnitPrice $10.00, ExtendedPrice $30.00
Product 4, Qty 2, UnitPrice $5.00, ExtendedPrice $10.00 ---here I can be adding as many as needed
Subtotal $80.00
Tax $5.00
Total $85.00
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