How To Access Underlaying DataView Of SQLDataSouce In It's Selected Event
Jun 30, 2006
I need access to the underlying DataView associated with a declaratively defined SQLDataSource. Ideally, I need this access in the SQLDataSource's Selected event. I know that I can use the SQLDataSouce.Select() method to return the underlying DataView object. But, there is a GridView control bound to the datasource so I don't want to explicity call Select() since it will end up being called again implicity by the gridview itself. I have seen that this can be done with an ObjectDataSouce as follows:
void odsDataSouce_Selected(object sender, ObjectDataSourceStatusEventArgs e) {
DataView oDV = (DataView)e.ReturnValue;
}
Is there any way to accomplish the same thing with a SQLDataSouce? It seems hard to believe that the query results are not exposed to the Selected event.
Thanks!
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Apr 25, 2008
I facing a problem when i want to modified the sqldatasource.filterExpression while trigger sqldatasource.selecting event. 1 Protected Sub SqlDsProduct_Selecting(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.SqlDataSourceSelectingEventArgs)
2 Dim SqlDsProduct As SqlDataSource = CType(CompleteGridView1.DetailRows(0).FindControl("SqlDsProduct"), SqlDataSource)
3 SqlDsProduct.FilterExpression = Session("filter") ' filter i add up after user press search button
4 End subActually i'm using the CompleteGridview, which i downloaded from the web. the "SqlDsProduct" i reffering to is inside the CompleteGridView1. I'm using complet grid view because i want the hierarchy look for the gridview. So please help me how i gonna change the filter expression of the 2nd sqldatasource inside detailsTemplate of the completeGridview. Thank you. best regardvince
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May 2, 2007
Hi
In the page load of my webpage I call a databind for a gridview.
It generally calls this event handler :
protected void SqlDataSource1_Selected(object sender, SqlDataSourceStatusEventArgs e)
However sometimes (seemingly randomly) it doesn't.
Any ideas?
Thanks
p
protected void Page_Load(object sender, EventArgs e)
{
...
if (searchText != "")
SqlDataSource1.SelectParameters["search"].DefaultValue = searchText;
else{
SqlDataSource1.SelectParameters["search"].DefaultValue = "";
GridView1.DataBind();
}
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Oct 4, 2007
Using Sql server 2005, SQLdatasource, I need to display total rows count. But the selected event is not fired? Am I mssing something or doing something wrong? Please comment. thanks
Code<asp:SqlDataSource ID="DataSource1" runat="server"
ConnectionString="<%$ ConnectionStrings:AuditToolConnection%>"
ProviderName="System.Data.SqlClient"SelectCommandType="StoredProcedure"
SelectCommand="usp_Dashboard_GetAll" >
--------------------------------
public in recordCount = 0;protected void DataSource1_Selected(object sender, SqlDataSourceStatusEventArgs e)
{
recordCount = e.AffectedRows;
lblCount.Text += recordCount.ToString();
}
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Jun 10, 2015
I have recently upgraded to SQL2014 on Win2012. The Access front end program works fine.
But, previously created Excel reports with built in MS Queries now fail with the above error for users with MS 2013. The queries still work for users still using MS 2007.
I also cannot create any new queries and get the same error message. If I log on as myself on the domain to another PC with 2007 installed it works fine, so I don't think it is anything to do with AD groups or permissions.
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Nov 19, 2007
Hi,
I am using windows authentication to access SQL Server 2005 objects. I have created a database role which grants select permission to only 2 tables in the database. I have added the domain user to this role. So the user should be able to select data from only those tables but when i try to select data from other tables also it displays the data which shouldnt happen. Could you please let me know whether there is any specific setting that needs to be done? Also is there anything to do with the schema level permission setting?
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Sep 25, 2015
I am getting the following message when trying to connect to a database (from an external application) that I have recently restored using my profile (Windows Authentication):
Connection failed:
SQLState: '01S00'
SQL Server Error: 0
[Microsoft][SQL Server Native Client 11.0]Invalid connection string attribute
Connection failed:
SQLState: '08004'
SQL Server Error: 4060
Server rejected the connection; Access to selected database has been denied
Connection failed:
SQLState: '28000'
SQL Server Error: 18456
[Microsoft][SQL Server Native Client 11.0][SQL Server]Login failed for user 'xxxxaaaa'.
My profile (replaced with xxxxaaaa) has full access to the server and I can connect to every other database with no issues. I get exactly the same error if I try and connect using the SQL Authentication "sa" profile as well.
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Feb 3, 2006
How do you programmatically change the SQL select statement for the SelectCommand in a SqlDataSource?For instance, if I had two buttons on a page, and for one button, I'd like it to change the select command to be "SELECT * FROM authors WHERE au_id > 100". Then for the second button, I'd like it to show "SELECT * FROM authors WHERE au_lname like S%".Anybody know the code to do this? I was trying to type the code, but the intellisense didn't give me any options to pick from after I typed SqlDataSouce1.SelectCommand.
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May 6, 2015
Using SSRS 2008 r2...I have a report with a single-value parameter and three multi-value parameters, Class1, Name2 and Name3. I'm hoping for an explanation to one thing that I'm seeing and information on a second thing.
Class1 and Name2 both have the (Select All) parameter selected but Class1 is displaying the concatenated parameter variable list whereas Name2 is showing Null. Why is that? If anything, how can I get Class1 to be similar to Name2 and show Null?But my desired wish is to have Class1, Name2 and Name3 display the text"All Selected" when the parameter (Select All) is chosen.
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Feb 21, 2014
I have created a Transactional Replication Publication on my SQL 2012 server.When I log into another server on the domain running 2008R2 and try to subscribe to the 2012 Publication, I get the following error when clicking on "Add SQL Server Subscriber": "The selected Subscriber does not satisfy the minimum version compatibility level of the selected publication"
The 2012 DB is set as 2008 Compatibility Mode?Am I not able to Publish from 2012 to 2008?.I was using SSMS 2008 to connect to my 2012 Instance, thats why it didn't work...
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Sep 24, 2007
hello all..,i have problem in update sqldatasource, my code like that:me.sqldatasource.updateparameter(index).defaultvalue=valueme.sqldatasource.update()it can not update data, why?but if i use insert or delete like:me.sqldatasource.insertparameter(index).defaultvalue=valueme.sqldatasource.insert()me.sqldatasource.deleteparameter(index).defaultvalue=valueme.sqldatasource.delete()it can work for insert and delete data...can anyone give me update command code in sqldatasouce? plsss...thx...
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Feb 17, 2006
Hi All,
Thanks for looking at the post. Here is what I am trying to do:
Lets say I have dragged and dropped a new SqlDataSource onto the page and called it SQLDataSource2
Now, in a function that happens afterload:
Protected Sub Partners_afterLoad(ByVal sender As Object, ByVal e As System.EventArgs)
I want to be able to loop through that SQLDataSource2, and pull a value to compare.
In classic ASP it would be something like:
'Move to the first recordSQLDatasource.MoveFirst'Loop through RecordsetWhile Not SQLDataSource2.Eof'Do compare of the Field MyValueIf SQLDataSource2("MyValue")=27 Then Reponse.Write "Hit on # 27"'Move to Next RecordSQLDatasource.MoveNext'End the loopWend
My questions are as follows:
1) Do I need to define the Datasource in the function, or can I use the one that VWD2005 helped me to define.
2) How can I loop throught that Datasource (Recordset) in a function.
Any and all help appreciated--Code examples will make me your best friend.
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Apr 5, 2007
In Dot net 2.0 we change using SQLDataSource to Conect with SQLDB.
Now for My case ,the Select SQL is dynamic when differnece user and parameters to the page, So if I want to Update the data input by user,then I must give Update/insert/delelte SQL to SQLDatasource's InsertCommand /UpdateCommand/DeleteCommand .
How to Generate the Insert/update/delete command for the SQLDataSource ? as in dot net 1.1 can use SQLCommandBuilder to generate it,but SQLCommandBuilder just support DataAdeptor not for SQLDataSource, Could any body know how to do it when the SelectCommand is dynamic and need to update data back to DB after edit?
thanks a lot.
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Feb 8, 2006
Hello,
I am using a sqldatareader to get back a whole set of data.
The columns are id, data_id and data_desc
for example, the collection is id data_id data_desc0 100 this is name for id 00 101 this is address for id 00 102 this is gender for id 01 100 this is name for id 11 101 this is address for id 11 102 this is gender for id 12 100 this is name for id 22 101 this is address for id 22 102 this is gender for id 23 100 this is name for id 33 101 this is address for id 33 102 this is gender for id 3
I want to be able to go thru' this list and break up for each id and create a txt file. So, i will have four text files.
txt0.txt will contain100, this is name for id 0 101, this is address for id 0102, this is gender for id 0
I would like to know, how do i use a dataview to break up the sqldatareader so i can then repeat the loop for each id and generate the text file.
I don't have a problem generating the text file.
Please let me know, how should i go about it.
Thanks a bunch,-Sean
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Apr 18, 2006
I don't know if this topic should go in this forum category or in the SQLDataSource forum.
I need to be able to provide SQL which varies based on what the user enters on a page. However, this isn't as simple a providing parameters in the SQLDataSource control because the SQL changes depending on what the user selects. For example, in a customer search page, they choose to search by either first name or last name from a drop down list and then enter the name to search for in a text box. The dataview should display the matching customers.
How can I set this SQL based on the entered values while also keeping the paging and sorting capabilities of the dataview? You don't seem to be able to set the SQL for an SQLDataSource at run time.
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Jul 23, 2005
In the dataview rowfilter property, how can I say that I just wantTitles that start with 'A' to 'J' ??ex:dv.rowfilter = " Country = ' France ' "I wantdv.rowfilter = " Title = (from 'A' to 'J') "This doesn't work :dv.rowfilter = " Title like '[a-j]%' "Neither does :dv.rowfilter = " Title like 'a%'" AND "Title like 'b%'" AND..so onBut this does work just for the Titles starting with 'a'dv.rowfilter = " Title like 'a%' "any idea ?JMT
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Sep 4, 2007
I am creating an ad-hoc reporting module for my website. The user may select a list of columns and specify the WHERE for the report. I build the select statement and the where statement and pass the info to a stored procedure. The stored procedure accepts 3 select parameters and a 3 wherestmt parameters. I finally got the SQLDatasource to work by setting the parameter values in the Selecting method of the SQLDatasource. Binding it to a gridview shows me all my values. Now, I am trying to programmatically call the select method of the SQLDatasource so I can get a dataview or datareader to manipulate further. I am getting an null back when I call the select method. Any ideas why? or a workaround?
<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:AssetMgmtRWConnectionString %>"SelectCommand="getAdhocRptData" SelectCommandType="StoredProcedure" DataSourceMode="DataReader">
<SelectParameters>
<asp:Parameter Name="strSelect" Type="String" />
<asp:Parameter Name="strSelect2" Type="String" />
<asp:Parameter Name="strSelect3" Type="String" />
<asp:Parameter Name="strWhere" Type="String" />
<asp:Parameter Name="strWhere2" Type="String" />
<asp:Parameter Name="strWhere3" Type="String" />
<asp:Parameter Name="bitDebug" Type="Boolean" />
</SelectParameters>
</asp:SqlDataSource>
<VB Code>Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
'Getting an error that the object is null? why is the above code not returning any data?
'Tried using a datareader and datasource.Dim rptview As IDataReader = CType(SqlDataSource1.Select(DataSourceSelectArguments.Empty), IDataReader)
If rptview.Read Then
lblMsg.Text = "Got Rows"
End If
End Sub
Protected Sub SqlDataSource1_Selecting(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.SqlDataSourceSelectingEventArgs) Handles SqlDataSource1.Selecting
'For this sp, need to set each paramater even if it is not being used. Setting it in the wizard
'does not work. Need to be set programmatically.
e.Command.Parameters("@strSelect").Value = "p.field1, p.field2 "
e.Command.Parameters("@strSelect2").Value = "s.field1, s.field2"
e.Command.Parameters("@strSelect3").Value = "a.field1, a.field2, a.field4, a.field5"
e.Command.Parameters("@strWhere").Value = "p.field3 is not null and a.field5 is null"
e.Command.Parameters("@strWhere2").Value = "'"
e.Command.Parameters("@strWhere").Value = ""
e.Command.Parameters("@bitdebug").Value = False
End Sub
thanks for any help.
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Jun 11, 2006
Hi,
I use a filter on a dataview which has uniq rows. I need to bind several fields of the result filtered row to textboxes. Here the code :
protected void Page_Load(object sender, EventArgs e) { string id = Request.QueryString["id"];
if (PreviousPage != null) { SqlDataSource dsPrev = (SqlDataSource)PreviousPage.FindControl("SqlDataSource1");
DataView dv = (DataView)(dsPrev.Select(DataSourceSelectArguments.Empty)); dv.RowFilter = "dr_id='" + id + "' "; dv.RowStateFilter = DataViewRowState.CurrentRows;
txtFirstName.Text = // ??? FirstName Field
txtLastName.Text= // ??? LastName Field
txtAddress.Text= // ??? Address Field } }
I don't know which cod to put in those lines.
On the help of the dataView there is an example that use DataBindings. This example is in the DataView.RowFilter article:
Text1.DataBindings.Add("Text",view,"CompanyName");
The big problem is that I don't have a method or event call 'DataBindings'. I just have 'DataBind' method or dataBinding event and they both don't support the 'Add' method.
So how can I bound those controls to my filtered Dataview field value.
Thanks,
David
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Dec 23, 2006
Question related to Visual Basic Video Lesson 09 (Databinding.wmv) by Bob Tabor.
Made a table and a UI form according to this lesson (table colums: CustomerID, FirstName, LastName).
Is it possible to use the same or an identical looking query form to find "Bob" by typing Bob in the Fist Name textbox or "Tabor" by typing Tabor in the Last Name textbox as in FileMaker?
Thanks,
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Mar 23, 2007
Hi, I need to create filter which retrieves data for current moment. [time].[date].lastchild is not an option because the calender in database is generated till following year (2008).
I guess script goes like..
[time].[date].currentmember
but it does not work.
I'm green with these MDX scripts.. I'd be very pleased if some one of you gurus could help me.
Best Regards,
Eeva
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Jun 2, 2015
Recently we migrated our environment to 2012.
We are planning to implement Xevents in all the servers in place of Trace files and everything is working fine.
Is it possible to configure Extended event to trigger a mail whenever any event (example dead lock) occurs.
I have gone through so many websites but i never find.
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Oct 25, 2011
My SQL Server 2005 SP4 on Windows 2008 R2 is flooded with the below errors:-
Date 10/25/2011 10:55:46 AM
Log SQL Server (Current - 10/25/2011 10:55:00 AM)
Source spid
Message
Event Tracing for Windows failed to send an event. Send failures with the same error code may not be reported in the future. Error ID: 0, Event class ID: 54, Cause: (null).
Is there a way I can trace it how it is coming? When I check input buffer for these ids, it looks like it is tracing everything. All the general application DMLs are coming in these spids.
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Apr 8, 2008
I have been testing with the WMI Event Watcher Task, so that I can identify a change to a file.
The WQL is thus:
SELECT * FROM __InstanceModificationEvent within 30
WHERE targetinstance isa 'CIM_DataFile'
AND targetinstance.name = 'C:\Program Files\Microsoft SQL Server\MSSQL.1\MSSQL\Backup\AdventureWorks.bak'
This polls every 30 secs and in the SSIS Event (ActionAtEvent in the WMI Task is set to fire the SSIS Event) I have a simple script task that runs a message box).
My understanding is that the event polls every 30 s and if there is a change on the AdventureWorks.bak file then the event is triggered and the script task will run producing the message.
However, when I run the package the message is occurring every 30s, meaning the event is continually firing even though there has been NO change to the AdventureWorks.bak file.
Am I correct in my understanding of how this should work and if so why is the event firing when it should not ?
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Feb 2, 2008
I have the following SqlDataSource in my page:<asp:SqlDataSource ID="sqlds" runat="server" ConnectionString="<%$ ConnectionStrings:cs %>" SelectCommand="SELECT [Quest1], [Quest2], [Quest3], [Quest4], [Quest5] WHERE ([QuestID] = @QuestID)"> <SelectParameters> <asp:Parameter Name="QuestID" /> </SelectParameters> In my code I get the following error: "Cannot convert type 'int' to 'System.Data.DataView'", I don't understand why I am getting this error because I am casting my SqlDataSource as type DataView when passing it to my DataView type.Code: protected void Chart(string record) { System.Data.DataView dv = (System.Data.DataView)sqlds.SelectParameters.Add("QuestID", System.TypeCode.Int32, record); //Error line ... ... ...}If anyone could point me in the right direction I would be very grateful.
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May 31, 2007
Server 2003 SE SP1 5.2.3790 Sql Server 2000, SP 4, 8.00.2187 (latest hotfix rollup)
We fixed one issue, but it brought up another. the fix we applied stopped the ServicesActive access failure, but now we have a failure on MSSEARCH. The users this is affecting do NOT have admin rights on the machine, they are SQL developers.
We were having
Event Type: Failure Audit
Event Source: Security
Event Category: Object AccessEvent ID: 560
Date: 5/23/2007
Time: 6:27:15 AM
User: domainuser
Computer: MACHINENAME
Description:
Object Open:
Object Server: SC Manager
Object Type: SC_MANAGER OBJECT
Object Name: ServicesActive
Handle ID: -
Operation ID: {0,1623975729}
Process ID: 840
Image File Name: C:WINDOWSsystem32services.exe
Primary User Name: MACHINE$
Primary Domain: Domain
Primary Logon ID: (0x0,0x3E7)
Client User Name: User
Client Domain: Domain
Client Logon ID: (0x0,0x6097C608)
Accesses: READ_CONTROL
Connect to service controller
Enumerate services
Query service database lock state
Privileges: -
Restricted Sid Count: 0
Access Mask: 0x20015
Applied the following fix
http://support.microsoft.com/kb/907460/
Now we are getting
Event Type: Failure Audit
Event Source: Security
Event Category: Object Access
Event ID: 560
Date: 5/23/2007
Time: 10:51:23 AM
User: domainuser
Computer: MACHINE
Description:
Object Open:
Object Server: SC Manager
Object Type: SERVICE OBJECT
Object Name: MSSEARCH
Handle ID: -
Operation ID: {0,1627659603}
Process ID: 840
Image File Name: C:WINDOWSsystem32services.exe
Primary User Name: MACHINE$
Primary Domain: domain
Primary Logon ID: (0x0,0x3E7)
Client User Name: user
Client Domain: domain
Client Logon ID: (0x0,0x60D37C1A)
Accesses: READ_CONTROL
Query service configuration information
Query status of service
Enumerate dependencies of service
Query information from service
Privileges: - Restricted Sid Count: 0 Access Mask: 0x2008D
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Nov 2, 2007
Hi all,
Can we get the event properties by using a query?
Are there any extended stored procuder to get the above?
Scenario:
>Desktop>Right Click on My Computer
>Go to Manage and click
>Expand System Tools
>Expand Event Viewer
>Application
click on one event.We can get the log info which is the manual procudure.
But now i want to get the event properties through the Query analyzer...
Any help would be great?
Thanks,
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Feb 15, 2008
(Hope this isn't a "stupid" question, but I haven't been able to find a straight-forward answer anywhere)"
I currently have code that iterates through a dataview's records, making a change to a field in some of the records. The way I have this coded, a conection has to opened & closed for each individual record that's updated:
dsrcUserIae.UpdateCommand = "UPDATE UserIAE SET blnCorrect = @blnCorrect WHERE (ID = @ID)" dsrcUserIae.UpdateParameters.Add("blnCorrect", SqlDbType.Bit) dsrcUserIae.UpdateParameters.Add("ID", SqlDbType.Int)
Dim myDataView As DataView = CType(dsrcUserIae.Select(DataSourceSelectArguments.Empty), DataView) For Each myRow As DataRowView In myDataView If myRow("FkUsersAnswerID") = myRow("AnswerID") Then intCorrect = 1 Else intCorrect = 0 End If dsrcUserIae.UpdateParameters.Item("blnCorrect").DefaultValue = intCorrect dsrcUserIae.UpdateParameters.Item("ID").DefaultValue = myRow("ID") intUpdateResult = dsrcUserIae.Update() Next
It seems like I should be able to do something like this (call update once), but I'm not sure how...
dsrcUserIae.UpdateCommand = "UPDATE UserIAE SET blnCorrect = @blnCorrect WHERE (ID = @ID)" dsrcUserIae.UpdateParameters.Add("blnCorrect", SqlDbType.Bit) dsrcUserIae.UpdateParameters.Add("ID", SqlDbType.Int)
Dim myDataView As DataView = CType(dsrcUserIae.Select(DataSourceSelectArguments.Empty), DataView) For Each myRow As DataRowView In myDataView If myRow("FkUsersAnswerID") = myRow("AnswerID") Then myRow("blnCorrect") = 1 Else myRow("blnCorrect") = False End If Next
intUpdateResult = dsrcUserIae.Update() 'Want all changed myRow("blnCorrect") to be updated to datasource
Can anybody explain how to do the bulk update? I've seen some info about AcceptChanges and Merge, but I'm not sure if they apply here, or if they more for Transactions.
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Nov 7, 2006
Hi all,
In my VWD 2005 Express, I created a website "AverageTCE" that had Default.aspx, Default.aspx.vb and App_Code (see the attached code) for configurating a direct SqlDataSource connection to the dbo.Table "LabData" of my SQL Server 2005 Express "SQLEXPRESS" via SqlDataSource, DataView, CType Function and the Page_Load procedure. I executed the website "AverageTCE" and I got Compilation ErrorBC30451: Name 'SqlDataSource3' is not declared:
Server Error in '/AverageTCE' Application.
Compilation Error
Description: An error occurred during the compilation of a resource required to service this request. Please review the following specific error details and modify your source code appropriately. Compiler Error Message: BC30451: Name 'SqlDataSource3' is not declared.Source Error:
Line 8: <DataObjectMethod(DataObjectMethodType.Select)> _
Line 9: Public Shared Function SelectedConcentration() As ConcDB
Line 10: Dim dv As DataView = CType(SqlDataSource3.Select(DataSourceSelectArguments.Empty), DataView)
Line 11: dvConcDB.RowFilter = "Concentration = '" & ddlLabData.SelectedValue & "'"
Line 12:
Source File: C:Documents and Settingse1enxshcMy DocumentsVisual Studio 2005WebSitesAverageTCEApp_CodeConcDB.vb Line: 10 //////////--Default.aspx--//////////////////////////
<%@ Page Language="VB" AutoEventWireup="false" CodeFile="Default.aspx.vb" Inherits="_Default" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>SQL DataSource</title>
</head>
<body>
<form id="form1" runat="server">
<div>
Average TCE<br />
<asp:DropDownList ID="DropDownList1" runat="server" AutoPostBack="True" DataSourceID="SqlDataSource2"
DataTextField="SampleID" DataValueField="SampleID">
</asp:DropDownList><asp:SqlDataSource ID="SqlDataSource2" runat="server" ConnectionString="<%$ ConnectionStrings:ChemDatabaseConnectionString2 %>"
SelectCommand="SELECT [SampleID] FROM [LabData]"></asp:SqlDataSource>
<br />
<br />
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" DataKeyNames="SampleID"
DataSourceID="SqlDataSource1">
<Columns>
<asp:BoundField DataField="SampleID" HeaderText="SampleID" ReadOnly="True" SortExpression="SampleID" />
<asp:BoundField DataField="SampleName" HeaderText="SampleName" SortExpression="SampleName" />
<asp:BoundField DataField="AnalyteName" HeaderText="AnalyteName" SortExpression="AnalyteName" />
<asp:BoundField DataField="Concentration" HeaderText="Concentration" SortExpression="Concentration" />
</Columns>
</asp:GridView>
<asp:SqlDataSource ID="ddlLabData" runat="server" ConnectionString="<%$ ConnectionStrings:ChemDatabaseConnectionString %>"
SelectCommand="SELECT * FROM [LabData] WHERE ([SampleID] = @SampleID)">
<SelectParameters>
<asp:ControlParameter ControlID="DropDownList1" DefaultValue="3" Name="SampleID"
PropertyName="SelectedValue" Type="Int32" />
</SelectParameters>
</asp:SqlDataSource>
<br />
<asp:SqlDataSource ID="SqlDataSource3" runat="server" ConnectionString="<%$ ConnectionStrings:ChemDatabaseConnectionString3 %>"
SelectCommand="SELECT * FROM [LabData]"></asp:SqlDataSource>
<br />
<br />
LabData-Analyte:
<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox><br />
<br />
LabData-Conc:
<asp:TextBox ID="TextBox2" runat="server"></asp:TextBox><br />
<br />
Average values:
<asp:Label ID="Label1" runat="server" Text="lblAverageValue"></asp:Label><br />
<br />
<br />
<br />
</div>
</form>
</body>
</html>
///////////--Default.aspx.vb--////////////////////////////////
Partial Class _Default
Inherits System.Web.UI.Page
End Class
////////////////--App_Code/ConcDB.vb--//////////////////////
Imports Microsoft.VisualBasic
Imports System.ComponentModel
Imports System.Data
Imports System.Data.SqlClient
Imports System.Data.SqlTypes
<DataObject(True)> Public Class ConcDB
<DataObjectMethod(DataObjectMethodType.Select)> _
Public Shared Function SelectedConcentration() As ConcDB
Dim dv As DataView = CType(SqlDataSource3.Select(DataSourceSelectArguments.Empty), DataView)
dvConcDB.RowFilter = "Concentration = '" & ddlLabData.SelectedValue & "'"
Dim dvRow As DataRowView = dvConcDB(0)
Dim ConcDB As New ConcDB
ConcDB.SelectedConcentration = CDec(0)("Concentration")
Return ConcDB
End Function
Call AverageValue (Conc1)
Public Shared Function AverageValue(ByVal Conc1 As Decimal)
Dim AverageConc As Decimal
AverageConc = (Conc1 + 22.0) / 2
Return AverageConc
End Function
End Class
**************************************************************
I have 2 questions to ask:
1) How can I fix this Compilation Error BC30451: Name 'SqlDataSource3' is not declared?
2) I just read MSDN Visual Studio 2005 Technical Article "Data Access in ASP.NET 2.0" and I saw the following thing:
Types of Data Sources:
SqlDataSouirce: The configuration of a SqlDataSoure is more complex then that of the AccessDataSource, and is intended
for enterprise applications that require the features provided by a true database management system
(DBMS).
I am using the website application in VWD 2005 Express to do the task of extracting data values from the Tables of SQL Server 2005 Express via .NET Framwork, ASP.NET 2.0 and VB 2005 programming. Can VWD 2005 Express be configured to SQL Server 2005 Express (SQLEXPESS) for the SqlDataSource connection and do the data-extraction task via DataView, CType Function and the Page-Load procedure?
Please help, respond and answer the above-mentiopned 2 questions.
Many Thanks,
Scott Chang
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Oct 22, 2007
We recently upgraded to SQL 2005 from SQL 2000. We have most of our issues ironed out however about every 1 minute there is a message in the Application Event log and the SQL log that states:
EVENT ID 18456 Login Failed for the users DOMAIN/ACCOUNT [CLIENT: <local machine>]
This is a state 16 message which I thought meant that the account does not have access to the default database. The account is actually the account that the SQL services run under.
Any ideas? We can't seem to figure this one out. We actually upgraded to 2005 from 2000 and had an error appear after every reboot that prevented the SQL Agent from running(This application has failed to start because GAPI32.dll was not found. Re-installing the application may fix this problem.) We did a full uninstall of SQL and reinstalled fresh and restored the databases from .bak files and that is when the EVENT ID 18546 started occuring every minute.
We don't have any SQL heavy hitters here so please be detailed with any possible solutions. That you very much for any help you can provide!
David
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Oct 19, 2006
I am trying to put the data from a field in my database into a row in a table using the SQLDataSource.Select statement. I am using the following code: FileBase.SelectCommand = "SELECT Username FROM Files WHERE Filename = '" & myFileInfo.FullName & "'" myDataRow("Username") = CType(FileBase.Select(New DataSourceSelectArguments()), String)But when I run the code, I get the following error:Server Error in '/YorZap' Application. Unable to cast object of type 'System.Data.DataView' to type 'System.String'. 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: System.InvalidCastException: Unable to cast object of type 'System.Data.DataView' to type 'System.String'.Source Error: Line 54: FileBase.SelectCommand = "SELECT Username FROM Files WHERE Filename = '" & myFileInfo.FullName & "'"
Line 55: 'myDataRow("Username") = CType(FileBase.Select(New DataSourceSelectArguments).GetEnumerator.Current, String)
Line 56: myDataRow("Username") = CType(FileBase.Select(New DataSourceSelectArguments()), String)
Line 57:
Line 58: filesTable.Rows.Add(myDataRow)Source File: D:YorZapdir_list_sort.aspx Line: 56 Stack Trace: [InvalidCastException: Unable to cast object of type 'System.Data.DataView' to type 'System.String'.]
ASP.dir_list_sort_aspx.BindFileDataToGrid(String strSortField) in D:YorZapdir_list_sort.aspx:56
ASP.dir_list_sort_aspx.Page_Load(Object sender, EventArgs e) in D:YorZapdir_list_sort.aspx:7
System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +13
System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +45
System.Web.UI.Control.OnLoad(EventArgs e) +80
System.Web.UI.Control.LoadRecursive() +49
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +3743
Version Information: Microsoft .NET Framework Version:2.0.50727.42; ASP.NET Version:2.0.50727.210 Please help me!
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Apr 2, 2008
Dear readers,
On my page people can opload foto's with a <asp:FileUpload ID="myfile" runat="server" BorderWidth="3px" BorderColor="Silver" BorderStyle="Inset" />
and stored the filePath in the database
Now i want, that when there is no picture selected, the path to Noimage.jpg picture who is in my image map will stored on my datadbase.
my script start like this If Not (myfile.HasFile) Then
////how can i select a standard image from
my imageMap and store path to database /////
Dim cnn As Data.SqlClient.SqlConnection
Dim cmd As Data.SqlClient.SqlCommand
Dim strSQL As String
Dim connString As String = (ConfigurationManager.ConnectionStrings("Personal").ConnectionString)
strSQL = "Insert Into tblMateriaal(ArtikelGroep,Artikelnaam,ArtikelType,ArtikelMaat,Aantal,Prijs,ContactPersoon,EmailAdress,Aanvul) Values(@ArtikelGroep,@ArtikelNaam,@ArtikelType,@ArtikelMaat,@Aantal,@Prijs,@ContactPersoon,@EmailAdress,@Aanvul)"
cnn = New Data.SqlClient.SqlConnection(connString)
cmd = New Data.SqlClient.SqlCommand(strSQL, cnn)
Dim plaatje As New Data.SqlClient.SqlParameter("@plaatje", System.Data.SqlDbType.NVarChar)
plaatje.Value = " "
cmd.Parameters.Add(plaatje)
Dim ArtikelGroep As New Data.SqlClient.SqlParameter("@ArtikelGroep", System.Data.SqlDbType.NVarChar)
ArtikelGroep.Value = ddl1.SelectedValue
cmd.Parameters.Add(ArtikelGroep)
Dim ArtikelNaam As New Data.SqlClient.SqlParameter("@ArtikelNaam", System.Data.SqlDbType.NVarChar)
ArtikelNaam.Value = tb1.Text
cmd.Parameters.Add(ArtikelNaam)
cnn.Open()
cmd.ExecuteNonQuery()
cnn.Close()
End if Lots of thanks
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Apr 30, 2007
Hi,
I am having a problem updating one field in a table the update should be the product of two other fields from the same row.
There are atleast 3000+ records need to be updated here.
e.g.
update A
set A.b = A.c * A.D
here b c and d are from same row .. I was wondering if someone knows how to solve this problem.
Thanks in advance.
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May 7, 2008
HI Guys, I have a question.
I am converting Access SQL to SQL Server. One of the statements calls for a wildcard if the user does not select a value for the designated parm field. The value is selected from a cbolist (of names).
Current Statement:
And tblRetailer_Contact.faxcontact LIKE *
I substituted:
And tblRetailer_Contact.faxcontact LIKE ‘%@faxContacts%’
This might work if the User selects a name but if the User leaves it blank it will not work. Any ideas on how I go about establishing a wildcard if not name is selected?
DECLARE @FaxContact as varchar (50)
SET @H_Date = (SELECT StartDate FROM tblRpt_Params WHERE RptID = 5)
SET @Start_Date = (REPLACE(REPLACE(CONVERT(VARCHAR (8), @H_Date, 112), '-', ''), ' ', ''))
SET @H_Date = (SELECT EndDate FROM tblRpt_Params WHERE RptID = 5)
SET @End_Date = (REPLACE(REPLACE(CONVERT(VARCHAR (8), @H_Date, 112), '-', ''), ' ', ''))
SET @FaxContact = (SELECT FaxContact FROM tblRpt_Params WHERE RptID = 5)
SELECT tblEData.Timestamp As [TimeStamp],
LTRIM(RTrim([ResultsCustName])) AS CustName,
LTRIM(RTrim([ResultsPH])) AS Phone, Status As [Status],
FaxContact AS FaxContact,
ResultsPKey As ResultsKey
INTO tmpE_Callbacks
FROM tblEData
LEFT JOIN tblContact
ON tblEData.RetailerPrefix = tblContact.Prefix
WHERE tblEData.Timestamp BETWEEN @Start_Date And @End_Date
AND FaxContact Like '%@FaxContact%'
Thanx so much,
Trudye
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