Added A Subform In VB From SQL Dataset?

Nov 8, 2011

I am trying to create a Form that can be filled out in it's entirety without having to bring up other forms. It is considered in access to be a subform. I have one table that includes Injuries and each injury has a specific ID well I have all the information that goes with it updating, except for the "many-to-many relationships"...I one want injury to have more than one treatment type, the problem occurs when I drag the injury table over from my dataset it automatically creates a binding source for it, which only controls the data inside that table. It does not control the data that is related to it such as "treatment type" "body part injured" . There must be a way to have a single Inj

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Saving Data Using Added Dataset In Asp.net?

Feb 26, 2012

I have added a dataset from New Item >> DataSet and configured it. I want to add new row to it using

Dim drNewRow as datarow=DataSet1.tblTest.New

but when I press . after DataSet1, IntelliSense does not catch tblTest, rather it gives tblTestRow and tblTestDataTable

How to get DataSet1.tblTest here?

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Dataset Not Retaining Columns Added To It Vb2008?

Jul 29, 2009

I add columns to my dataset but when start my application again columns are not there

[Code]...

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Forms :: Login Form With Added Dataset?

Mar 7, 2010

My background is mostly Access VBA and I am having to learn VB.NET. I am trying to recreate an Access 2007 application I wrote into VB.Net. We are looking at using a hosted SQL Server so we do not have to worry about remote offices or replication. I am using VS 2008 and SS2008.My issue is that I need to create a login form in VB that with look at SQL Server DB and return a dataset record matching the username and password. There are many tutorials on here but do not match what I am looking for.I have a stored procedure with 2 parameters (@prmUser and @prmPassword) named spLogin.I need to call the sp and pass the parameters to SQL Server DB and return the complete row of data that is matched from the button_click event on my form.

In Access, I would have a form that would have the returned data and I would reference that information throughout the application by using the 'forms!frmName!txtValue' to populate forms, reports, and fields that would capture the user that created the record. What is the best practice for this?Next when the login credentials are correct then I need another form to open, which is my MDI form, if not correct then msgbox to try again.

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Redundant Data Are Added While Creating A XML File From DataSet?

Jan 5, 2012

This is resultant Xml File

<Drug_x0020_Type>Marijuana</Drug_x0020_Type>
<Marij_x0020_Type>Test1</Marij_x0020_Type>
<Test1_x0020_Type>Type1</Test1_x0020_Type> <Time_x0020__x002F__x0020_Date_x0020_Recv_x0027_d>11:30</Time_x0020__x002F__x0020_Date_x0020_Recv_x0027_d>

In Database these element are as follows Drug Type,Marij Type, Test1 Type,Time / Recv'd

When i write out the dataset to xml using the GetXml method of the dataset.
Its Created But some extra values are added in element tag.

Its addeding due to special characters like {' / ....etc}

How do i get the resulting xml without those values?

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.net - Filtering DataGridview Using DataSet -> BindingSource, Extra Columns Later Added?

Apr 29, 2011

For a WinForms VB.Net application, I use the Bindingsource's filtering capacity to filter data, which is seen in a DataGridview. The BindingSource is from a DataSet, created using the Designer, and the data comes from a Access DB, using JetEngine and .Net 3.5. So basically:

Datagridview.Datasource = xxBindingSource
xxBindingsource.Filter = "[extended filter string with multiple columns]"

This filtering works fine, however, now I included some extra columns in the DataGridView, which I'd like to filter on, too. Of course, when I feed the manually added columns to the Filter of the BindingSource, this doesn't work out.I've done some research, and was not able to find any way to use the BindingSource's filtering syntax on the DataGridview. I'd like to use this syntax though, as I designed quite a nice UserControl and class around it, to provide smooth, fast and simple filtering capabilities.

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VS 2005 - Compressing A Dataset Converted To XML Using The GZipStream Class Added In 2.0

Mar 25, 2009

I am compressing a dataset converted to XML using the GZipStream class added in 2.0. There are a few things bothering me about this. Here's the code I am using to decompress the XML file:

Using inFile As New System.IO.FileStream(flnm, IO.FileMode.Open, IO.FileAccess.Read, IO.FileShare.Read)
Dim zStrm As New System.IO.Compression.GZipStream(inFile, IO.Compression.CompressionMode.Decompress)
Dim buff(999) As Byte

[CODE]...

This seems inordinately awkward, as I am taking the stream, reading it out into byte buffers, then writing those byte buffers to a memory stream that is then passed to the dataset.ReadXml() method. The reason for this seems to have to do with what is happening in the line colored red. That line is adding a closing > onto the end of the stream. Without that, ReadXml complains about an unclosed dataset. I found out that the > was missing by writing the stream into a string and pasting the string into WordPad. Without that missing >, it appears that I wouldn't need to be using that memory stream at all, and could simply pass in the GZipStream to ReadXML, but as far as I can tell, it's impossible to look at the GZipStream to be sure that the > is not there, and it may be impossible to add it (I haven't tried).

So why is the > missing? Here's the code used to create the file that is being read into the filestream in the above

VB Using ms As New System.IO.FileStream(flnm, IO.FileMode.OpenOrCreate, IO.FileAccess.Write, IO.FileShare.Write)
Dim zStrm As New System.IO.Compression.GZipStream(ms, IO.Compression.CompressionMode.Compress)

ds.WriteXml(zStrm, XmlWriteMode.WriteSchema)
End Using

The real kicker to all of this is that while I was dissecting the first chunk of code, I added a line to check for cnt<1000. My intention was to see the last buffer that was being written into the memory stream to see whether the final > was actually there, or not. To my surprise, I reached the cnt<1000 twice. That means that one read did not read a full 1000 bytes, but read only 675. The next three or four reads were a full 1000 bytes, then the final read was just a few hundred bytes. It is my understanding that Read will return a full buffer if there are that many bytes left to read, and there were, so why did it return only a partial buffer? That suggests that there might be a hole in my XML, though with a half meg file, it's a bit much to read through it looking for something missing. However, the XML that was returned was turned into a dataset that I then merged into some existing data using code that has been working with uncompressed XML files, and I got an error that I should never have received. That may indicate that the XML was, in fact, missing something, though I will have to study the matter further to figure out whether or not that is the case. My major question has to do with the missing '>' at the very end of the file.

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Update The Dataset To Reflect An Added Column In The Data Source Without Deleting The Adapter?

Mar 28, 2011

I've made a dataset using the dataset designer, and I'm trying to add a column to reflect changes made to the database (added a column, nothing fancy). Is there a way to 'refresh' the dataset schema from the datasource without deleting my adapter (and all the methods and queries I've created)?

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Link Forms Without Using Subform?

Apr 23, 2009

Is it possible to build and event procedure and link two form together? What I am doing on one form is listing all incomplete records with a list box... and when someone clicks on the name they want to see... I want the next form to pop up so they can complete all the data.

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Copy Data From Subform Table To Another?

Jul 18, 2009

Access databse, On the main form I have a combo box select a table (1 of 50 table names), the subform pulls up the table and users can go to a specific record. Once they move from the subform, how do I capture the subform fields to another table. As the combo table selects from one table, the selected table is different, my primary table is linked by FKey in this "MergedTable" with FKey "TableName" and FKey "item" for each of the 50 tables?

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Forms :: Make Subform To Appear On Tab Page?

Sep 11, 2011

How do i make subform to appear on Tab Page.

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Reference Not Set To An Instance Of Object From A Subform

Sep 15, 2010

I have Form1 calling Form2 and Form2 calling a sub from anther class on load that populates a combobox.The sub is throwing the exception "Reference not set to an instance of an Object". I do something nearly identical on the main form and it works perfectly.[code]

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C# - Winform Templating System Like ASP.NET MasterPage Or MS Access SubForm

Aug 2, 2009

Does a Winform Framework exist for something similar to ASP.NET Masterpage or MS Access SubForm ?

With MS Access SubForm you can do like ASP.NET Masterpage. It's a huge loss of time with Winform when having to create a lot of complex form. You have to compensate with either Code Generation which create code duplication or do Runtime Dynamic Form which is much more difficult.

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Make A Combobox Selection Change Table I Use For A Subform?

Jul 14, 2009

I have a combobox linked to a table Checklist (ID, Checklistname, and several multivalued fields). I want to have my subform display data from different tables based on my combobox selection "checklistname". All the tables are imported Excel files with the same fields and field types (ie. Discrepancy, reference, reference paragraph, category). How do I get my subform to requery based on the combobox selection? Or is there another method when working with "outside tables"? Import good/bad? Make new table? I have about 20 tables, if importing but only need particular data to save/store in my main table, and I need to know which table it came from.

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Control Added On The Fly Is Added To The Wrong Location Of An Auto-scroll Panel?

Jun 21, 2010

I have a program that adds controls on the fly to an auto-scroll panel. When the panel is scrolled (viewing the bottom of the panel for example) and a control is added, it looks like it is added assuming the top left corner of the panel is still at 0,0 when in fact it may be 0,500. To see what I am talking about, create an empty "Windows Forms Application" project and insert the below code into it.

Friend WithEvents Panel1 As System.Windows.Forms.Panel
Friend WithEvents btnAdd As System.Windows.Forms.Button
Dim ButtonCount As Integer

[code]......

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Dynamic Added Textbox To Status Bar And Added Event

Jun 10, 2009

i have multiple forms in a project and all have statusbar. there is no way to add textbox on status bar but in my previous thread i got the help to add the text box. i created a function in module so that i call that function from all the forms on load and add the textbox on status bar and also add the event on textchange. the function to be called on event change is in individual form (at present)[code]

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Original DataTable Object Has Columns Added When Variable Has Columns Added?

Oct 6, 2011

I have a datatable property called prpParametersTable in a class called clsBatch. I have a procedure that sets a datatable variable called dtP equal to prpParametersTable at the beginning of the procedure. I then add three new columns to dtP.Here is my problem. When I add the three new columns to dtP my original table prpParametersTable also gets those columns added to it, why? I only want to add the three columns to dtP and not prpParametersTable. How can I do that?

Private Function prvfnc_InsertBatchParameters(ByRef cnn As SqlConnection, ByRef trans As SqlTransaction) As String
' set new columns that have BatchID, Insert DateTime, and UserID for the SQLBulkCopy method below
Dim clm As DataColumn
Dim dtP As DataTable = clsBatch.prpParametersTable

[code]....

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DataSet Editor - Allows The User To Edit A DataTable In A Strongly-typed DataSet

Mar 15, 2010

When the user clicks an "Edit" button on my form, I want a box to come up which allows the user to edit a DataTable in a strongly-typed DataSet. What's the best way to do this?

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IDE :: Dataset Code Behind Datatable.ColumnChanging Event Firing / But Dataset.HasChanges Property Not True

Jan 28, 2010

I have code running in the Datatable.ColumnChanging event in my dataset. This dataset underlies a form and conventional drag/drop controls are in place for data entry.when the event triggers and runs, I am running code in the form that checks the dataset.HasChanges property. It is showing False. But this is immediately after the ColumnChanging event has been triggered.Okay, I see by others posts and MSDN that .HasChanges will only be true after moving off the row with the changed column. I have also noted lots of discussion about the advanced binding property of DataSourceUpdate Mode, but that does not address this issue.I guess I can do this by checking the state of the row for the binding source. Just seems odd that the event behind the dataset can be triggered and that does not change the dataset.HasChanges property.

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System.Data.Common.DbDataAdapter.Fill(DataSet DataSet)

May 14, 2012

I have tried everything I can to get beyond this error which shows below as <<<<< error here. It is trying to fill a dataset from a data adapter. If I change the SELECT statement to just SELECT * FROM xTable I get the correct number of records in each table. But anytime I try with a more complex statement I get the error message shown below which indicates System.Data.Common.DbDataAdapter.Fill(DataSet dataSet. I've completely erased all data and entered a new set of test data so I know there is no problem with relationships. Each table has primary key which is foreign key in other table. IS there something wrong with the Imports section: Imports System

[Code]...

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.net - Copy Data From Dataset To A Type Dataset Using Automapper?

Aug 24, 2010

i am trying to copy data from a standard Dataset to a Type Dataset (XSD) of same table structure. i want to use Automapper to do that one. So how can i do that using automapper?

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Fill A DataSet On Application Startup And Use Dataset Other Form?

Jun 5, 2010

I need to pick all data in my application from my database and use it in my form

my question : how to pick all data in my application then i use it

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Loop Through Dataset Updating Data From Results Of Another Dataset

Jun 22, 2010

I have two Datagrids, One grid has all the customers garments on it with style number and contact length. The other grid has the users who have garment issued to them. the style number is in both grids. I need to loop through the users grid and say if the contract number is 1 from the first grid then the contract date on the second grid will be todays date + 365 days (year contract) I have looked at using a stored procedure and also a for each command but I am just getting stuck with it all. [Code]

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Saving Dataset To Database Which Has Imported Rows From Another Dataset

Jan 4, 2011

I have a problem saving a dataset which contains rows that i have imported from another dataset. i can successfully view the imported rows in a gridview but i cannot commit the rows back to the database.

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Added A Toolstripmenu And Added Some Text In The Toolstripmenu?

Dec 18, 2009

so i made a from with in it a WebBrowser now i added a Toolstripmenu and added some text in the toolstripmenu how can i make it that when i click in the toolstrip menu to go to an web browser

Private Sub World30ToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles World30ToolStripMenuItem.Click
End Sub

i thought it was something like call webbrowser but it didnt work out

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.net - Combine Multiple Dataset Columns To One Dataset?

May 19, 2010

I have multiple datasets that I would like to combine into one. There is a common ID field that can be associated to each row. Calling Merge on the dataset will add additional rows to the dataset, but I would like to combine the additional columns. There are too many fields to do this in one query and therefore would make it unmanageable. Each individual query would be able to handle ordering to ensure the data is placed in the correct row.

For Example lets say I have two queries resulting in two datasets:

SELECT ID, colA, colB
SELECT colC, colD

The resulting dataset would look like

ID colA colB colC colD
1 a b c d
2 e f g h

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Repointing A Report Dataset To A Test Dataset

Feb 18, 2011

ok, I've finally got my test database issues sorted out, however now I need to actually modify my existing report to add the two new fields from my test database. I have made a copy of the report so that I am not modifying the original. I have deleted the two old fields and now want to add my two new fields in there. In the Field explorer window, I see an object called "dataset1" and when I expand it, it is using a view that includes fields from the table that I added my two new fields to.

The problem I see here is that I have gone in and modified the view to include these two new fields in my test database - but again, they are not showing up as selectable fields here. I am just assuming that "dataset1" is somehow pointing to the live database again and that I need to change the datasource location.In my solution explorer, I see an object called "dataset1.xsd" but the properties of that do not tell me much about where it is actually pointing to...

[Code]...

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VS 2005 Typed Dataset Vs UnTyped Dataset

Nov 25, 2009

I want to access data using both the datasets.

Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
Try

[Code]....

In my code i have dataset name ds and table named Info1,when i write ds after that how tablename is coming,its not possible? How to do that ?

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Asp.net - Geocoding A Dataset - Map A Dataset Of Addresses On A Map

Aug 2, 2011

i am looking to map a dataset of addresses on a map. basically, i want the users to type a street name in my town and be able to see the houses that have signed up already on that street. so a pinpoint should show up on the houses that came up on the dataset.

[Code]...

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C# - .NET Dataset Design - Have A Dataset For Each Table?

Jul 23, 2010

I have some concern about designing Datasets. I was told that it would be good to have a dataset for each table for maintenance purpose. Because frequent change in database tables is expected, having one dataset including every tables would be pain to make the corresponding change in the application.

Q. is it good approach to have a dataset for each table ( I would end up having 30~40 datasets for each db table using Stored procedure) ?

I have a separate project for commonly used datasets. each project include "dataset project" as a reference, and use it by including needed dataset into Forms, classes, etc.

Q. Does this approach makes the whole system to be slower? If I have a set of datasets as a separate project, it would be beneficial, since It will be easier to make a change (I only need to make modification in one place)

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