I'm trying to automate a data entry. I have a form with several textbox, combobox, etc.. and i will like to know if there is a way to get a specific row of data from a binding source and duplicate it so I can then simply make the necessary changes to a few columns.
View 3 RepliesI have an Access database and I want to view on a datagridview specific rows. For that I used the following :
CasesBindingSource.Filter =
"OfferDate Between #1/1/1997# And #12/31/1997#"
Cases is the table, OfferDate a field of the table wich is DateTime type.
When I use Between operator I get the following error :The expression contains unsupported operator 'Between'.
is there any way that i could link/bind multiple binding source to only one binding source navigator?
View 4 Replieshow to use the VS 2010 IDE tools in a way the Microsofties didn't specifically intend. But since this is something I immediately tried without success.
I have defined a .NET 4.0 WPF Application project with a simple class that looks like this:
Public Class Class1
Public Property One As String = "OneString"
Public Property Two As String = "TwoString"
[Code]....
The expected result was that "OneString" would appear next to "One" and "TwoString" next to "Two" in the running window.
The question is: Why didn't this work? What will work instead? If I put bindings in a DataTemplate, it works. Blend, with its sample data stuff, implied that this should work, but it doesn't.
I am creating VB.NET Windows Application. I have Placed a Binding Navigator Control on Form and that is Binded with a BindingSource Object which has a Binding Source of a Data Table. I have Binded Two textBox with my Binding Source and I am able to Navigate in Records uisng Binding Navigator Object but when I made some change in my record and try to update that I my Database (SQL Server) it show an Error that "Update requires a valid UpdateCommand when passed DataRow collection with modified rows" where as I have defined DataAdapter.UpdateCommand and that is valid one. Below is the Code.
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Im trying to do bind a dropdown list to a details view but keep getting an error about the dropdown list ID field:
<asp:TemplateField HeaderText="Approval">
<ItemTemplate>
<asp:DropDownList ID="Approved" runat="server" DataValueField="Approved" SelectedValue='<%#Bind("Approved") %>'>
<asp:ListItem Text="Approved" Value="Approved" />
[code]....
The error message as follows:
'Approved' has a SelectedValue which is invalid because it does not exist in the list of items.Parameter name: value
What is the proper way to attach the value of the dropdownlist to my object so that it can be properly created in the database? Most of my searches keep telling me how to bind a dropdownlist to an object data source, but that is not what I need to do. This is a basic drop down list of 2 items that will never change.
I'm working on a VB Winform project using Visual Studio 2008. The form's controls are all bound to a bindng source and a binding navigator which are tied to a dataset class. When the form is displayed, the first record is displayed as well. However, one of the controls (Radio button) is not showing the correct data from the data set. However, if I navigate to the next record and move back to the first, the radio button properly displays the correct information, so it appears the binding source is working the way it is suppose to.
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I'm a VB.NET newbie, and i'm currently building a .NET application.
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How do i achieve the same in VB.NET (VS2010) in data binding mode?
I am using this code to save my Binding source data to a text file:
Dim sfd As New SaveFileDialog
Using sw As New System.IO.StreamWriter(My.Computer.FileSystem.SpecialDirectories.MyMusic & "iFX 2011 Playlists" & TextBox1.Text & ".txt")
[code]....
I have a bit of code that reaches out and grabs a series of rows from SQL Server DB. I perform an inner join to get some related table data. In the process I get returned the user id of the creator of the data. I then want to pass this into a query to get back a full name. I am having no luck figuring out how to do just that. If I use the data visualizer I can see the name I am after, I cannot figure out the call to extract it
Bindingsource1.DataSource = GetData("Select * From PURCHASE_ORDERS WHERE PURCHASE_ORDER_NUMBER =" & REQ_NUM.Text)
.DataSource = Bindingsource1
[code].....
I have inherited an application at work that someone else started creating, right now about 1/2 of it is functional and is in use. My problem is that it is all done in 2.5 ?? and I am trying to step through it all to figure out how it works. I have always created my own binding sources, adapters and data tables.
One of the things I need to do is add a field to the fm_fieldman_master data table. I add the field in the db (SQL Server 2005)table, I come into VS and refresh the datasource, I then add the field to the fm_fieldman_master data table and the Fill,GetDAta() query I go into the designer and create all the attributes for the combo box
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I want to iterate over all rows of a MS-Word mail merge data source and extract the relevant data into an XML.I'm currently using this code:
Imports Microsoft.Office.Interop
Do
objXW.WriteStartElement("Recipient")
[code].....
1. I have a DataGridView box, that is connected to a MySQL database via the 'Data Source'. I am trying to do the datagridview1.rows.add("info here"), however i receive an error i cannot do this programmatically. I DO know the code to post to MySQL via the "insert into" la la la.However, I was curious if I can do this via the datagridview a bit..easier/simpler, such as a "datagridview1.rows.add(stuff)" sorta thing.
2. I am attempting to make a custom control, and as with ANY control, they have their.. settings. Example, a textbox, or label, has so you can set the Text. and color, etc.Others, have it (such as datagridview) have the little icon on the control itself, where you click it, and it opens a small window with settings.
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.
View 2 Replieswan to ask about anyone know the code about how to clear all the data inside the data grid view without clear the binding source...
View 1 RepliesI've got lots of textboxes and such bound to a BINDING SOURCE - the datasource of the CASEFILEBS is set like this:
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Seems "data saving" is not always being consistently done - sometimes a field change never makes it into the underlying datatable - sometimes certain field changes never make it to the DB. I believe I'm doing something fundamentally wrong that when fixed will clear up some of these issues.
I think this is a dirty data issue, but I'm not sure. I have a data-bound form with a bunch of textboxes. I have a table adapter, binding source, and dataset in my form.
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I have a program that needs to generate a random 8 digit ID and check to see if it in the database before adding it to a new row.
At the moment I have the correct code for doing this, but I have it in the event handler Bindingsource.AddingNew. This event handler executes my code and THEN adds the new row. How can I get it to add then new row and THEN execute my code? Is there an event handler I can use to do this?
I found the same thread but it has never been answered. So I better to post a new one.
The problem is I added a new column in my table, I have a dataset linked to that table and a source of data of my datagridview.
Now, when I'm going to add a new column into my datagridview, I didn't find the new column which I added recently. Seems that the binding source is not updating whenever an update takes place.
I'm writing a order entry system and I'm using structures to pass information around various parts of the program for things like the order header (order date, customer name, etc).
In building the form I discovered that you could use a binding source between form controls and the struct which is great because it means alot less code on a form that will be very busy anyhow. Unfortunatly I'm either doing something wrong, or I've discovered a bug in vb.net because when you fill in a textbox and the binding source fires the setter for that attibute of the struct, it does one of two things. It either: Finds the struct that I assigned to the binding source then creates a new instance of it after it is done thus destroying any changes.Creates a new instance of the struct because it wants to rather than use the one I instructed.
I know this sounds confusing so I'm including a small program that demonstrates the problem I'm having.
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
I'm creating a dataset (AddressDataset) that has 2 datatables - addreess and state.
Addrees: line varchar, state_id number
State: state_id number, state_name varchar
I've created a data relation between state id on these tables. I'm setting up to combo boxes: cboAddreess, and cboState. I'd like cboState to change to the correct value when address changes.
Dim dbSelCommand As OleDbCommand
Dim dbSelCommand2 As OleDbCommand
dbSelCommand = New OleDbCommand
[code]....
This gives me "address cannot be found in binding source".
I've got a somewhat sillier question this time. After I insert/update my data using SQLParameters, it wont refresh. I'm using the following code to refresh the binding source:
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First: I have a numericUpDown and a class that are bound.
Me.percent.DataBindings.Clear()Me.percent.DataBindings.Add("Value", options, "percent")When I change the numericUpDown the underlying class seems not to update. I have to click outside the numericUpDown to force validation and force syncing. This is very counterintuitive and will cause problems. How can I make sure the underlying data object gets the new value on valuechange rather than validate?
Second: After I change the numericUpDown I have an option that serializes the underlying data in an xml file. The underlying XML file does not always get the right data. To figure out what is happening I added a button that outputs the values of the underlying data object and it is always getting updated. In other words...the control and the object values always agree. The serialize
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I have a child form open (frmProfile) and when I click on the Search button on the Toolbar another form is loaded. On the search form is a few text boxes where the user can input different search functions (First Name, Client ID, Last Name, SSN, Male, Female, etc). Also on the form is one DataGridView.
What I need to do is:
1) After double clicking on a row in the dgv, it sends the clientid to the parent form (frmProfile). I actually have this working but looking for improvement.
2) I would like to then click on the Next button on my toolbar and it go to the next record in line.
At the moment, I only have 1 record that comes in out of 9500. Below is the code from the Search Form and the Profile form.
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I have my own toolbar with Add. Delete, Previous,Next etc. I disable some depending on the user so I am not interested in the BindingNavigator. What method is used for movenext in code?I could really use some help on this. I have spent way too much time so far but needing to learn the nuts an bolts of 2008
I'm currently working on a project where I want to ensure a user does not create a new record based on an ID (such as Customer ID) that already exists.If the record does exist, don;t create the new record and simply move the bidning source to the existing record and display that.What I'm currently doing within the Binding Navigator Add New Click event is checking if there is current data to save and prompting the user if they wish to save the changes before doing anything else.I then set a boolean variable called _NewRecord to true. Then within the lost focus event of the record ID, I have the following code:
Dim itemFound = -1
If _NewRecord Then
itemFound = GroupExists(txtGroupID.Text)[code]....
The code above works well, but I was thinking of doing this using the AddingNew event of the binding source instead to check for an existing record and simply cancel the new record addition then move to the existing record. However, I couldn't find any good examples of how I might do that or how to properly use the AddingNew event.good example of using the AddingNew Method as it looks like it might be useful to know for future projects.
Im having some wierd behavior on a bound form in vb.net 2008. I have setup a client form, with another tab that has contacts for that client. the contacts tab has a binding navigator at the bottom, so the user can move amongst the contacts. all fields on that form are bound to a bindingsource called bsContact, using a table adapter called "ContactTableAdapter"
if i have a contact already saved, and want to modify the contact info, the form binding doesn't seem to recognize that i have changed the value of a textbox on that contact.i would think that if a textbox is bound to a bindingsource, then if the value of that textbox changes, the bindingsource would know about it, but it doesn't. The dataset.HasChanges returns false, and my save wont happen. (see code)so, when i hit the movenext on the bindingnavigator, it changes to record 2...i change a value on a textbox...i hit the save button on my form....no update will happen.
Update: I noticed that if i am on the tab with the multiple contacts, and i change a textbox on the form, then i MOVE TO ANOTHER RECORD, then the dataset recognizes that there was a change, and the update happens. Why doesn't the textbox immediately notify the dataset that a change is happening?
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I'm using the following code to refresh my binding sources, but it doesn't appear to be working for my details view.[code]...
View 4 RepliesI can't get my binding source to update from a DataGridView
This is how I'm loading the dataset into the dgv:
vb.net Dim sFileName = filelocation & "Checks.xls"
Dim connectionStringTemplate As String = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source={0};Extended Properties=""Excel 12.0;HDR=Yes;IMEX=1"""
Dim connectionString As String = String.Format(connectionStringTemplate, sFileName)
Dim sqlSelect As String = "SELECT * FROM [Sheet1$];"
Dim workbook As DataSet = New DataSet()
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I have a form with a binding source bind to the invoice table. I want to generate invoice report when the user selects an invoice record from the datagridview and clicks generate report. What i want is
1. how can i set the report's source to the binding source
2. can i do this using the crystal report generating wizard
3. or what articles or sites you recommend me so as to do this