Using The Datasource Binding In VB 2008?
May 17, 2009
I have been successful in using the datasource binding in VB 2008 (drag and drop from datasource to form)My question is that I have date and time fields in an access database. In the database they are fine. I have the date as a long date and the time field as medium time.When these dates are viewed in my vb form, they show as:example (for date of 5/15 and time of 9:00)
Date field: 5/15/2009 12:00:00 AM
Time field: 12/30/1899 9:00:00 AM
I tried to format these field in VB to long date and medium time but it doesn't change. Any suggestions on how to do this?
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Apr 14, 2010
During Loading a form, I bind a datasource property of the DGV to the bindingsource, and then set the fillweight property of the DGV columns. But, after form being shown, earlier set properties are being reseted to default = 100.
The procedure is like:
1. TestForm.Show()
2. TestForm_Load(...) Hnadles MyBase.Load
DGV.DataSource = bindingsource
DGV.columns(0).fillweight = 80
DGV.columns(1).fillweight = 120
3. Me.close() (Closing the form which called TestForm.Show()
And now I have visible a TestForm with well binded datasouce seeing all the columns, but their fillweith property was beeing reseted...
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Apr 13, 2009
I am binding a datasource to a datarepeater. It works lovely (I am a huge fan of the repeater...) - Anyway - the only thing is that I want to know the number of the row that I am currently on. It isn't like a for loop where I can just count... Hmm? Here is a bit of code maybe you an see what I want to do.
HTML
if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
{
DataRowView drv = (DataRowView)e.Item.DataItem;
[code]....
Notice at the end of the line where I am trying to set listingCount - I can't seem to figure out how to update searchResultCount?
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Nov 26, 2011
How can I modify this code to add a binding source to datagrid1.datasource
DataAdapter.Fill(ds, strFileName) ' Fills data grid..
DataGrid1.DataSource = ds.Tables(strFileName) ' ..according to data source
DataGrid1.AllowUserToOrderColumns = False ' Disallows sorting to keep it all straight
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May 19, 2010
I have a form that with a list of text boxes. My target is simply binding these controls to an XML file so that whenever the file contents are changed externally, the text box values change dynamically. I will have an external application edit the XML file and overwrite the existing one.
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Nov 27, 2010
OK So I know WHY I am having the error I am getting. I don't know HOW to fix it. Basically, if the user doesn't have a certain permission, I need to join another table. But .NET is so picky I can't just make two different queries in an IF statement and then use it outside of the if statement. I can think of some ugly work arounds for this, but I would rather not. I am fairly new to .NET I know just enough to be dangerous.
[Code]...
because of this: Dim l As IEnumerable(Of Company) its not just IEnumerable of a Company, its got the source in it. I have to explicitly select source to use it in my datagrid. Can I make Dim l something that will make it stop complaining?
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May 31, 2009
Im a ASP.NET beginner. I previously asked how to do some databinding to a repeater without a datasourse.
[Code]...
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Nov 30, 2009
after i drag the datagrid view from the data source windows the group of controls appear in my form does not include a binding navigator, i also dont see it in the component area.
but when i try the example from northwind database after i drag datagried view it already have a binding navigator. why my own project dont?
EDIT: im able to figure out about this 1st question, just a little bit of exploration , i just add the navigator control from the control toolbox. then set the binding source. ^^,
question 2: when the binding navigator is now available.
when the navigator is already now in the form i will set the visible property = FALSE.
i will make a control button that will serve as "Save and Addnewrecord" that will save the data (from the text box )and save it to the table and add new record read to accept new data.
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Oct 29, 2011
is there any way that i could link/bind multiple binding source to only one binding source navigator?
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Jan 30, 2011
I use vb.net and windows form and sqlserver
I added Data Source(Microsoft SQL Server (SqlClient)) to my project. and now I need to change it to ODBC Data Source .
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Sep 2, 2009
I have an IEnumerable(Of System.Data.DataRowView) and would like to set it to be the datasource of a datagridview - however when I try I get no results my IEnumerable variable in the eg below is called xIEnum
DataGridView1.DataSource = xIEnum
However when I go
DataGridView1.DataSource = xIEnum.ToList
it works.... However I want the data to automatically update when I change the underlying datasource that the IEnum is mapped to?
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Dec 25, 2009
i import into a list box data from a db. when i try to save listbox it save this text
System.Data.DataRowView
instead text of single item...
how i can get the real text of each item?
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Dec 29, 2010
I am connecting my VB application to Oracle Database. I need to configure the Data Source in the app.config.ng know which section do I define my UID, PWD and DSN and what functions do I use to read this information. Can I also write back this information through the application.
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Apr 19, 2010
I'm learning some more VB in my spare time, and I'm making a simple customer database that uses SQLCE. I've got the datasource set up and all that, but for some reason when I hit accept on the form, nothing happens?
[Code]...
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Jun 14, 2009
I gather MATTER NUMBER and PATENT NUMBERS in a listbox on a dialog form - that I pass to the main form after the dialog closes.I then ask for CASES on subsequent dialog forms and want to have drop downs for MATTER NUMBER and PATENT NUMBERS that "have the suggestions" of what was entered in those list boxes earlier.So - I've been using DATASOURCE for binding to datatables and thought to myself - heh - I can probably set the DATASOURCE of the DROPDOWNS - and it works!
Public AddMatterNumber As ListBox
Public AddPatentApp As ListBox
MatterNumber.DataS
[code].....
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Jul 16, 2009
I have a vb.net project. I have used the GUI and wizard to create a DataSource pointing to a SQL Server Stored Procedure. It works great! However, a new column has been added to the stored procedure.In the GUI if I right click the data source name and refresh, nothing happens.If I right click the stored procedure name and refresh, nothing happens.If I preview data I can see the new column returned.If I choose edit with wizard there is a red exclamation point next to the name of the stored procedure and red X be each column name.
When I hover over the field name it says "Column ABC in the DataSet references a column missing from the Database".When I hover over the stored procedure it says "STORED_PROCEDURE is mapped to STORED_PROCEDURE in the DataSet. Element STORED_PROCEDURE in the DataSet contains columns that do not exist in the Database".I can't figure out how to get the new columnd in the dataset.
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Jan 21, 2010
[code]My question is how can I remove xStopBits(0) before setting the DataSource?To get around this I currently have a check in the ComboBox1_SelectedIndexChanged event.
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Jul 6, 2011
I am trying to link a date produced from a month calendar to a three column data source . Col 1 is date and cols 2 and 3 hold password records for use on the selected date. I am able to have the selection from the month calendar produce a result into the label text but cannot see how to relate the date in col 1 back to the label. I am beginning in this world,
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Nov 7, 2011
i need to query the datatable & set the outcome as datagridview controls datasource
vb.net
Private Sub Txt_Search_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Txt_Search.TextChanged
'routine objective:- Filter datatable & set the datagridview datasource
[code]....
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Oct 18, 2010
binding navigators, datagrid view, binding source are all sql database parts.Will these parts still work if you havent got sql on you pc and your not using an database file (.log and .mfd) and your not coding to them, im using MS Jet/Oledb to code to Excel.What not to put on an Employee evaluation: This employee has hit rock bottom and shows signs of starting to dig.
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Jul 2, 2011
Binding Master Table to TextBox and DateTimePicker and Binding Details Tables to Datagridview then Add / Update / Delete in both
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May 7, 2009
I made an application that was used by one person only, but now my boss told me that this application it'll be used by all company.I made the application with a dataset that have the datasource in a access database that's installed with the application. The user can add, delete and change values in the database, so i had to put the database in a sql server to everyone see the changes.There's someway to change the dataset datasource/connection string?
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Oct 14, 2009
I have created an application which uses an sql server connection as its datasource. The problem I'm having is that the application needs to work on computer that has no network connection. How Can i change the datasource so that on runtime it can work off a machine that is not connected to a network? The datasource from the sql connection only contains one table with no data. It only needs to be updated with a target folder that can be changed to any location on any computer already written in the code.
The connection string suddenly stands as: Dim MyConnectionString As String = "Data Source=MY-PC;Initial Catalog=ImageLocs;User Id=test;Password=test;Pooling=False"
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Aug 17, 2010
My form closes whenever I insert an object that has a data bound in it. The object I'm trying to insert is a textbox from the data source window (drag n drop). I've checked on the database and that the table has records in it.
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Feb 13, 2010
I have two tables "Person" and "Alias" in a one to many relationship. I have a DGV for "Person" and want to use a combobox for the Aliases. I also have a textbox and a button for the user to type the alias name and click the button to add the alias name to the combobox and update the dataset. I keep getting the "Items collection cannot be modified when the DataSource property is set." Error. But if i use a DGV instead of a combobox for aliases, I have no errors and everything works fine. If I remove the datasource property for the combobox it will not get populated with the data already entered, so how, or can I, set it up where the combobox gets populated when the form loads and able to add items to the combobox????
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Jul 26, 2009
I was wondering how i can loop through a combo boxes items display item field - and return the value for each - i want this to be generic regardless of the combo boxes data source - or if the combo box has been populated with a string list / class etc
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Nov 19, 2009
I need to create a user control which can be used in my all projects. I have created a user control with a TextBox Control and a ListBox Control. My goal is that as soon as any character is pressed in the textbox, Listbox's item which starts from that character should be selected. I have done all the coding needed for the functionality but my problem is that when I add this usercontrol to my form, I should be able to change the DataSource, displaymember and valuemember properties at designtime. But I cannot see these properties when I add the control on the form.
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Oct 27, 2009
How can I create the property... type the combobox? for now I found alone this that it goes in mistake
[Code]....
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Apr 10, 2010
I have a table on an sql server and am creating a form to manage the records in the table. On the form I have a combobox to navigate between records and am using this code to populate a dataset and the combobox...
[code]...
Also on the form I have various textboxes to edit the data for each record, and when the combobox selection changes, the data in the textboxes change. I know I can update the selected record when the contents of a textbox changes, but is there a way to bind the textboxes to the current record? What is the perfered best) method of handling this?
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Nov 2, 2009
I've got a datatable in a dataset binding to a datagridview. One of the columns in the datatable is called status, but it is a type string. It can be "0" or "1". On the datagridview, i want to bind it to a checkbox. if checked, it must put a "1" in the datatable and if unchecked, it must put a "0" in.
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