Hi All, I've taken a few steps forward on my project, but got caught by another problem I can't figure out. Some help is needed please. Please read the history of this app. The application is now working fine,... EXCEPT when I go to add a child row. It fails on the "TableAdapter2.Update...more >>

I created a custom collection that derives from System.Collections.Generic.List(Of Person) and populated it with 5 person objects. I bound a Gridview to the BindingSource object. I set the Datasource property of the bindingsource object to my custom collection. I then set the filter property...more >>

Why does my field not save when I change the combobox from DropDown to DropDownList? I used the data from wizard. Thanks. ...more >>

I have a combo box bound to a binding source wich is bound to a table. For some reason the selectedvalue of the combo box doesn't show the correctt value of the row the first time the form is showed. When I move to the next row using a binding navigator the combobox selectedvalue have the corr...more >>

Hi All, I even started off with a new project and a blank form. In design view I created a DataSet, 2 tables within the DataSet, 2 TableAdapters, and 2 BindingSources. One tableadapter and one BindingSource for each table. The tables have the following key structure: Table1 PK t1Date ...more >>

Hi All, I am developing the windows application using .Net 2.0. I am binding the dataset to the combo box like, this.statesCB.DisplayMember = "Name"; this.statesCB.ValueMember = "Code"; t...more >>

Hi All, I am developing the windows application using .Net 2.0. I am binding the dataset to the combo box like, this.statesCB.DisplayMember = "Name"; this.statesCB.ValueMember = "Code"; t...more >>

VS 2005 winforms project: I have a DataGridView bound to a list of business objects. On it's RowEnter event I want to get a reference to the business object that row of the DataGridView is bound to. How can this be done? // Persons_BLL obj // obj is an instance of Persons_BLL // H...more >>

I've seen plenty of examples where you can databind to a list of objects, but in this case I want to bind to a single instance and have no use for a list. Can anyone refer a good example of how to do this in .net 2.0? Thanks. -- moondaddy@noemail.noemail ...more >>

I have a c# 2.0 app and want to bind the buttons on a toolstrip to properties in a class which will manage the state of these buttons. How can this be done? Thanks. -- moondaddy@noemail.noemail ...more >>

I need to populate a combobox and/or a listbox with several fields as displaymember. Both controls allow only one field as displaymember. I need the display member to look like this (the columns should be left aligned), where each columns represents a field in the underlying datatable: 001...more >>

I just waisted so much time on the following issue that I decided to = post it to the groups for permanent reference for anybody else who comes = across it. When databinding a DropDownList ComboBox to a list of business objects = via a BindingSource, make sure that if you've overridden ToStrin...more >>

hi, I have 2 DataGridViews( gridSrc, gridDst), their datatable(DataSource) have same columns. DataGridViewRow srcrow = gridSrc.CurrentRow; How to insert srcrow into gridDst? thanks. wu jianhua. ...more >>

For a DataGridView column representing float values how can I set a cell to a non-float value (empty cell or the string "N/A") for float values that are (logically) invalid while maintaining data synchronization? Bellow is a scenario in case my question isn't clear. I have a class with differe...more >>

Hi I want to display a datagrid summary of a datatable. The grid will not show all the fields, but when the user selects a row, I want the other controls (text boxes) to also bind to the same row that is selected in the grid. However, the controls will bind to ALL of the fields, where the gr...more >>

I have a BindingSource whose DataSource property is set to a list of structs (List<MyStruct>). Each property in MyStruct can be read and writen (get/set). I also have a DataGridView to which I manually add columns (dataGridView.Columns.Add). Each column has set the property "ReadOnly" to fals...more >>

hi, I use .net 2003, In form I have a grid and some textboxs. DataView view = ...... grid.DatSource = view; and add binding for textBox, like : TxtCode.DataBindings.Add( "Text", view.Table, "cust_code" ); TxtName.DataBindings.Add( "Text", view.Table, "cust_name" ); when I scroll my grid, text...more >>

I need to be able to keep track of many properties about a field on my form that the dataset cannot keep track of, so I would like to use a class to keep track of these, while still taking advantage of databinding. In essence, I would like to bind the Value property of my class to a column ...more >>

Hi all. I am writing a Windows Forms Application. I have SessionDAL class (Data Access Layer), which has such method: public DataTable GetSessionsContent(Nullable<int> sessionId, out int retcode, out string retmsg) { ... } This method connects to the database, retrieves proper data and...more >>

I have a form with a few fields (textboxes, comboboxes, etc), a dataset, a bindingsource, a table adapter, and a bindingnavagator on it. I am trying to understand the way the updates happen to deal with the add new error. If I add a new row and then try to move to another row or perform a fi...more >>

I’m using VB.Net 2005 and dgv in a Windows Forms App to present MSSQL 2000 Table Data for display only and not updating, allow User to be able to Sort and to enable User navigation based on clicking any Row. I just can’t get all the Properties, Events and Methods to give me my druthers:...more >>

I have a DataGridView with three columns. The first two columns contain ComboBoxes, the third column contains textboxes. The ComboBoxes of the first column always have the same list of items, but in the second column, the items depend on the selection of the cell in the first column (so for each...more >>

I have a BindingList<T> which is bound to a DataGridView. The class used in the BindingList implements IEditableObject, INotifyPropertyChanged. I use a BindingSource to expose the collection to a grid and a property of the current object to a textbox. My problem is that if I am on the new ...more >>

I follow the wizard in the designer and I get a "generated updata methods" success message but when I go back to the TableAdapter only the Insert and Select methods are created ...... The select is very simple: select col1 from table1 Any idea?...more >>

Hi, I have a situation wherein I need to fetch a huge amount of data (2-3 million records) from SQL server database into a dataset, loop through the entire data, do some data processing and then commit the entire transaction to the database. The above operation will be done by a process sch...more >>

Hi .... If I use the TableAdapter Configuration wizard to automatically generate INSERT, DELETE and UPDATE code in a DataSet and then drop a data source on a DataGridView do I have to handle row adds and changes myself or are they wired up "automatically" ? It does not appear that they a...more >>

Hi there, I am trying to use a strongly typed BusinessObject Data Source with a GridView on an asp page. By using the same example that was given on MSDN Walkthrough: "Using a Business Object Data Source with the ReportViewer Web Server Control in Local Processing Mode" http://msdn2.micros...more >>

What i would like to do is share on datasource with many forms, controls and etc. but i having a problem, the binding only updates the targets when the position of the datasource is changed (you will understand that after you see the code below). so if change the description textbox the othe...more >>

Hello, I have a DataGridView control that I bound to an array of objects. This works fine but now the properties AllowUserToAddRows and AllowUserToRemoveRows have no effect anymore, which means no empty row for adding new rows is displayed and pressing Del on an existing row does not delete t...more >>