Ok, I know this has been asked many, many times but I haven't seen the correct answer yet. When the database schema changes how do you update the dataset designer to reflect those schema changes without wiping out the whole dataset and starting over?
View 1 RepliesOn the server side of my application I have a function like this:
public function GetDS as MyTypedDS
Dim dsRetVal as new MyTypedDS
'Make fantastic things with the dataset
return dsRetVal
end function
On the client side I call this function through a generated "service reference":
Dim ds as Reference1.MyTypedDS = myRefInst.GetDS
How can I disable schema serializaion of the typed dataset to reduce the traffic?Is it enough to set the SchemaSerializationMode of 'dsRetVal' to ExcludeSchema before returning it? Or is this option ignored by WCF?
I have a small dataset which has most of its schema defined at design time, but I add a few columns to one of its tables at runtime. My problem is how do I reset those changes? he dataset is not linked to any datasource. It just has its own table which I "manually" populate. The static columns have been added to the datatable at design time. However, I add a few columns as runtime based on a list of categories. Like this:
[Code]....
The dataset is used in a small dialog that pops up within my application. I add the dynamic columns when the dialog is opened by using the Load event. Everything works great the first time. But if you close the dialog and reopen it, there are problems. My startup routine tries adding the dynamic columns again, but an error is thrown saying the column already exists. I have tried a lot of things and did some reading but I can't figure out a way to reset the dataset when the dialog is closed. The only solution is to close the whole application and reopen it. I have tried the following in the Leave event of the dialog form:
[Code]....
I have an access database with 5 tables.I want to fill a dataset with the entire contents of the database.Why can't it roughly look like this?[code]Instead I'm having to create an adapter for EVERY table, tab the table name (why?), fill the schema, and then fill the table.
View 1 RepliesI'am trying to write a program for projects management.It is based on MS SQL Express Server 2008 database.I have 2 forms.In first form I have list of projects (using DataGridView and showing all projects).So if user click on Project name cell second form will open with Project details (using text boxes and labels to show one project).I try something like this:
Public strValue as String
Private Sub DataGridView1_CellClick(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles DataGridView1.CellClick
[code]....
I have a php web service that I can call from a php client. I need to call this web service from a vb.net application. When I try to add a reference to this web service I get this error:The root element of a W3C XML Schema should be <schema>here is the top of my wsdl file:
<?xml version="1.0"?>
<!-- partie 1 : Definitions -->
<definitions name="raidService"
[code].....
The Publish (for a Web Site) is nice and all, but wiping the entire directory is problematic as I have a folder that files can be uploaded to, and I don't want the wiped out every time I make a code change.
View 4 RepliesI have an Access Database, which I connect to using the Microsoft .Jet OleDB provider in VB from Visual Studio 2008.For some reason, whenever I make any change to the code (so that the project builds again), the data in the database completely disappears. I can only assume this means it's remaking the database every time. Note that it does this every time it builds, not just when I connect to it in the code.In my project, this is the database I connect to with the connection string, but there's also another duplicate of the same database in my Debug directory that changes to match the first database every time.The problem only started when I remade the access file to move some columns around and then reconnected through VS a couple of weeks ago.
View 2 Repliesthe schema is created using VS, but when I try creating the schema using XSD.exe, the validation works, am I missing something here, like namespace or anything?
SCHEMA:
<?xml version="1.0" encoding="utf-8"?>
<xs:schema id="EmployeeXML" targetNamespace="http://tempuri.org/EmployeeXML.xsd"
elementFormDefault="qualified" xmlns="http://tempuri.org/EmployeeXML.xsd"
xmlns:mstns="http://tempuri.org/EmployeeXML.xsd" xmlns:xs="http://www.w3.org/2001/XMLSchema">
<xs:simpleType name="NameType">
[Code]...
I have an imported sql database using pa as the schema instead of the default dboThe problem is when I go into vs 2008 and create a gridview control, it won't recognize the from table object. I get "invalid object name" unless I go directly into the code and put the database name and schema name in front of it.
View 5 RepliesI have written a small XML validator, that takes in an XML file and an XML schema and validates the XML files against that schema. It works well, except for an XML file, with this content:
[Code]...
I would like to take data, from a dataset, and parse it out in XML. but, i would want the XML to be based on a particular XSD schema. The dataset is being filled from a database (wich i have no problems doing).
View 1 RepliesAre there any commands that make life easy with respect to this? I want to take the column schema of one datatable (.net datatable) and copy it to another new datatable.
View 2 RepliesI want to move a table schema from one database to another using vb.net or c#. How can I do that?
View 1 RepliesI am using microsoft access 2003 and visualbasic.net. I am trying desperately to add a database using the wizard, and it lets me go through with it, testing the connection is good, but when I try to finish it gives me an error: "<customers>Could not retrieve schema information for table or view customers." What am I doing wrong? I've added databases in the past without this problem using the same Access.
View 12 RepliesHow do I create a .xsd Schema file from a given .xml file programatically?
Is there a .NET class representing XSD.exe ?
i have to create a class that creates an xml file using a schema.i created a "Component class in vb.net and setted his properties with the tag xmlelement("nameofthexmlnode").i did the creation of the xml.Now i have to use the xml schema but i didn't found an easy to use/understand example.i know that i have to serialize the object but i can't still create an xml using a valid schema.
View 2 RepliesTrying to dispaly a sql server database schema on a webpage, vs 2008 see the code below
[Code]...
I have an .XSD that is made from a class so that I can pass to a webservice. It got it over to the webservice as an XMLSchema object and now I need to make it into a class so that I can make objects out of it on the webservice side. I know that XSD.exe is the answer but I'll be darned if I can puzzle out exactly how to implement this thing. I need it to do this conversion at run time so I need to put the code for it into my project and all the references I've seen to using XSD.exe talk about calling it from the command line.
My .XSD is below.
<?xml version="1.0" encoding="utf-8"?>
<xs:schema attributeFormDefault="unqualified" elementFormDefault="qualified" xmlns:xs="[URL]">
<xs:element name="Field">
[Code] .....
In my project this is living in an XMLSchema object. How do I turn it into a class?
I have some data in my Linq.DataContext.I had succes in converting it to an XSD - Schema, using the following code:
Dim changeset As System.Data.Linq.ChangeSet = c.GetChangeSet()
Dim objDic As New Dictionary(Of System.Type, List(Of Object))
If Not changeset Is Nothing AndAlso Not changeset.Inserts Is Nothing AndAlso Not
[code].....
I import a XML to a Dataset and works fine, import XML with Schema and fine to, but for any estrange reason the primary key that is in the XSD don't appears in the Dataset.
The XML and XSD are generated from a access 2003 table, right button and export.[code]...
I'm a little stuck here and maybe some of you can point me in the right direction ... maybe even get me a solution. Well, I do query a table but before everything I need to get the SQL Query to create the Table (like you get, when you select to option "Create to" in SQL Server Management Studio). For example like this:
[Code]...
There is an old timesheet application being used in my company and i am going to rewrite it in asp.net.There are other tables which can be linked to new Timesheet table like employee table but my main concern here is the Project and Project_Activity table.In the current system, there is a one project and a activity table which are linked to the timesheet table seperatly and user has to spend alot of time on selecting activities code they worked on for specific project.I have came up with the new idea; Project manager will have to fill up a project template and link all the activities code with the one project before starting this project. This way user will have to select the project only and it will automatically bring the associate codes for them.I like to know if this design will work okay? and is it okay to link Project_Activity table with timesheet? [code]
View 2 RepliesI am using the XMLSerializer to create an XML Schema. In one part of the XML, I have an element called 'parameters', which returns a collection of strings. The output is supposed to look like this:
[Code]...
No mater what I try I can not get my schema file to work, it write and is in the right directory but the column all come as strings no matter what I do?
HTML
Dim fs As New FileStream("Schema.ini", FileMode.Create, FileAccess.Write)
Dim writer As New StreamWriter(fs)
Dim fn As String = Me.OpenFileDialog1.SafeFileName
writer.WriteLine("[" & fn & "]")
If Me.OpenFileDialog1.SafeFileName.EndsWith(".txt") Then
[Code]...
i am having big problems getting a xml schema saved in a file into a string. here is what the schema looks like
xml
<?xml version="1.0" standalone="yes"?>
<xs:schema id="SoLi" xmlns="" xmlns:xs="http://www.w3.org/2001/XMLSchema"
[code].....
fy0910 and fy1011.so when i see the report in schema fy0910 or in fy1011 i have to change every time the schema reference for the subreport,but when i see the report in the specific schema after setting the schema reference then there is no problem in subreport but when i go to another schema then again i have to change the schema reference for sub report.For your kind information there is absolutely no problem in main report.
View 1 RepliesI want to populate the datagridview with the data entered by the user in the textbox(Without saving the data in the database)
So i decided to create a DataTable with the appropriate schema and assign it to the DataSource of the grid but i cant create the schema......
If you know a bit about database design, you would mind glancing at this? I don't know if I my logic is right or not.Schools, players, and coaches can have awards. Schools have players and coaches, states have schools. - Am I missing something?As far as populating the database, I want to have static data entered into the database before a user runs the program and then allow them to add new information that would only be saved (to a save file, not overwriting the original static data) if they clicked a button. How do I go about this
View 10 Repliesim using the query builder to create my sql queries I have made many SELECT statements but when i try and use UPDATE i get this error
"Failed to get Schema fro this Query"
I am able to create a "NonQuery" but i dont know how to implement The query will execute when i build in the query builder but when i try and save it the error appears?