I have created a search/query facility after watching one of Beth Messi's videos. I notice that we can convert the textboxes on the auto generated search toolstrip to buttons, comboxes, etc. So, when we wanna search for a data in the datagridview, we enter a keyword. I wonder if it is possible to change the textboxes to comboboxes and make it bind to the datasources, so that users can use the drop down, instead of typing?
View 6 RepliesNeed some direction not looking for code,
How do I add text such as 'please select' to a bound combobox that populates from parameters?
I want to make this text the selected index 0.
I have a bound combo box that choose employee profiles and fill the form controls.
I can edit the selected profile nicely, but how to delete that selected profile?
The combo box is bound to a sql table. When i use the...
cbox_profiles.Items.Remove(cbox_profiles.SelectedValue)it says: "Items collection cannot be modified when the DataSource property is set."
So how can i delete this selected item or any item i want from that bound combo box?
in my application i am using table called teacherdetailloading which will bound combobox here is my piece of code:
[Code]...
In the form below you see how the initial selected item is the first record of the table.. these controls are bound.. I want to initially show "Select one" in the combo box or nothing at all and the other controls not to be bound until an actual item is selected in the combobox..
View 1 RepliesI have an Address Book project with a listbox. The listbox is bound to the database via the little arrow pop-up box in the corner of the listbox. I have the DisplayMember set to FirstName, and obviously only display the First Name of the contact in the ListBox. Is there an easy way to change it so that it displays the First and Last names? I can't change the binding because I need it to get the ID of the record selected.Here's the basis of my code...
Private Sub MainForm_Load(sender As System.Object, e As System.EventArgs) Handles MyBase.Load
'TODO: This line of code loads data into the 'CompanyDataSet.Contacts' table. You can move,
[code].....
I have a data bound combo box which i want to open at a certain row in the table
i can't set the selectedvalue because it is databound
I am creating a simple website using the language of VB.NET, I am having trouble with one part at the moment and could really use some help.
At the moment I have items that are stored in a database, when the homepage loads these items are added to a Gridview which allows the user to select the items they wish to add to their shopping cart. Once an item is selected from the gridview it is added to a collection. That collection is then added to a Session. This is the code I have for completing that task.[code]...
I have a data-bound combobox that pulls values from a BindingList(of T). Combobox loads fine, correct values are displayed (I'm not using SelectedItem or SelectedValue). I'm using properties and connecting the data to the control via a bindingsource.
What I want is if the user types text into the combobox, I want the data from the bound table to change to that new text, i.e. edit the bound data directly.
Easy as pie to do with a textbox, but can't seem to get a combobox to work this way.
I was trying to use the validated event of the combobox to write the data to the datasource, but it doesn't fire when I press enter. Is that the way to do it? Can I not link the data to the combobox directly?
I have Toolstripitem1 on uknown toolstrip... Is there way to get that toolstrip as object from Toolstripitem1?
View 3 RepliesI have a context menu strip (named cmnuRtxtIT) that pops up by right clicking on top of a rich text box in a VB 2008 WinForms application. Context menu strip cmnuRtxtIT has one item named ToolStripMenuInsertFld. This last one has one dropdown item named oolStripComboBoxFlds which is a ToolStripComboBox type. I do the following in the form's Load event to bind ToolStripComboBoxFldsto an Sql database:
Dim dt As New DataTable
Dim dta As New SqlDataAdapter("SELECT pkID, txtFlds FROM ApplicationFields", goConn)
dta.Fill(dt)
[code].....
how to load 1 column data from accessdatabase into combobox item...i mean, i have 1 table " info_table and 1 column "product..so in product column have data like nokia and sony"..i want nokia and sony to be load into combobox item or dropdownlist..
View 4 RepliesI used a class MyList and with the Help of this MyList the combo box named cboCity was filled with City Code(like 1001,1002,etc..) as Value member and City Name (like Canada,California etc...) as display member.
Public Class MyList
Private _dispName As String
Private _valMember As Integer
Public Sub New()
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The value members 1001,1002,1003,1004 get inserted as per cbocity(combo box)display name selection , into the database and during the retrieval of the record the value member is obtained and based on that for eg:when i get 1001 the selected item should be Canada.I tried many ways while fetching the record and set the selected item but all fails .
I know how to add a item(checkbox) to a toolstrip dynamically, but I want to add a checkbox which is exists in a form. I've tried using the code
[Code]...
but this makes the already existing checkbox, go to the top left of screen and when the toolstrip is click it appears. So I want to add the checkbox to the menu, without going to top left corner,
I want to make my webbrowser navigate to the clicked toolstrip item's text. for example:
Private Sub HistoryToolStripMenuItem_DropDownItemClicked(ByVal sender As Object, ByVal e As System.Windows.Forms.ToolStripItemClickedEventArgs) Handles HistoryToolStripMenuItem.DropDownItemClicked
[Code]......
I did a VB6 to VB.NET conversion and this line wasn't converted. I'm not sure what property to set that would replace Bevel. What could I use? statusBarMain.Items.Item("PercentBar").Bevel = System.Windows.Forms.Border3DStyle.SunkenOuter
View 2 RepliesI have tried this but this is not working.[code]Here i need to take the data from exds to text boxes. As when we click on combobox we need to show data according to that party in all text box's.[code]
View 1 Repliesfacing the same problem.I have tried this but this is not working.
Protected Sub cmbParty_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles cmbParty.SelectedIndexChanged
myConnection.Open()
[code].......
I have a tool strip menu item who's collection is filled from a subroutine that loads all available com ports on the computer at for load. I know how to generate a click event for menu items that are filled, but not if they haven't been filled already. I guess it doesn't need to be a click event. It just needs to do something that I can get the .text and use it to configure a serial port.
View 6 RepliesWhile I am asking this for VB I verified this issue also occurs in C# so I think it is a .NET issue. I am using Visual Studio 2010 Premium Version 10.0.40219.1 SP1Rel with .NET Version 4.0.30319 SP1Rel.
Step to recreate the problem.
Create a new Windows Application for Visual Basic (WinForms).
Add a ToolStrip.
Add a ToolStripComboBox to the ToolStrip.
Save, note the width of the combo box.
Change the padding on the combo pax to 2.
Save and close the form designer.
Reopen the form designer, look at combo box width - it decreased. Note that form is marked as having been modified. So save it and close the designer again. Reopen the designer and look at the combo box width - it will have shrunk every time you save, close, and reopen until you get to a 0 width. It shrinks by 4 * the padding size. Why would padding affect the size since that is the interior margin where as the margin settings are the exterior margins.
i want the user to be able to select one from the combobox but i dont want them to be able to type in there own into the actual combobox, i tried Enabled property but then you can pick one either. And i couldn't find the IsReadOnly property on the ToolStripComboBox,
View 3 RepliesI've got a dynamically filled datagrid view. When a user right clicks a cell in the datagridview, it opens a context menu, located by that cell. The context menu has two choices: A and B. I want to set the value of the cell to A if they pick A, and B if they pick B.I would like to pass the relevant cell as a field in the event args passed to ContextMenu's ToolStripItem.click. So the handler for ToolStripItem A's click event would read the relevant cell from the event args and set it to A , like this...
Private Sub A_Click(ByVal sender As System.Object, ByVal e As Customized System.EventArgs) Handles A.Click
e.relevantCell.Value=A
End Sub
how to pass a custom event arg. Or if there is some easier way to do this? I can't just use the X and Y coordinates, because the context menu/mouse won't necessary by over the relevant cell.
My overall goal is to add fake/unbound items to a listview control (for final HTML Table output reasons). This is a code behind solution. Users will not be adding items as it will be outputted in a rigid table.
I have looked at several examples and while this is easy for a dropdown it is not for listview.
The code below works without error, but my item is not shown on runtime. I think the class is not setting the item fieldname correctly, but I can't figure out the right syntax to fix it.
ColumnNameAList.DataSource = PeriodDataView
ColumnNameAList.DataBind()
Dim test As New Example1("ColumnNameA")
[Code]...
I have a listbox bound to a datatable, and controls that are bound to the same datable. As you navigate through the listbox, the controls correctly reflect the selected item, and changes to the controls update the dataset OK as well.Now I'm trying to add a "New" capability to the form. So on the click for "New", I deselect the currently selected item and clear the controls[cod]e...
View 1 RepliesI have a List of an object, set to DataSource of a BindingSource, set to DataSource of a DataGridView. Then I added a DataGridViewButtonColumn which I want a click to remove that record from the collection. So I simply call collection. RemoveAt (e.rowIndex) from the DataGridView CellClick event. However this produces an IndexOutOfRange Exception; "1 does not have a value"..
So is happening here? I have maybe a vague idea, but would like to understand exactly which events are failing etc.. and what do i need to do to perform this action properly?
EDIT: This seems not to happen if I use a BindingList.. But when using a List, I get this problem..
I am working on a bound DataGrid that displays data from a database. I'm using Silverlight 5 if that helps. Currently all the data is stored in a Dictionary within the my entity object. Using the Property[Key] syntax for the binding path binds properly for display purposes. But the column acts like it is readonly when trying to change a column value in runtime.
Public Class Entity
Public Property Attributes As New Dictionary(Of String, Object)
End Class
[Code].....
My only thought right now is to store the column values in ordered lists and display them using an index rather than key. But I would really like to know why the key isn't working.
I have used the command:
For Each Proc as process in process.getprocesses
Combobox1.Items.Add(Proc.MainWindowTitle)
to populate a combo box with the list of current process windows, however for every process that doesnt have a main window title there is a blank space, is there a way that I could tell it to not insert the item if it's mainwindowtitle field is blank?
For example; I have a DataGridView bound to a MYSQL Database. There are two string columns "Name" and "Gender". I need to make the "Gender" column a ComboBox where they can select "Male" or "Female".
View 1 RepliesI'm using vb.net in vstudio 2005. how do I get the value from a combobox when I have it bound to a dataset?
View 5 RepliesI have a combobox2 this is bound to a datasource, which is an arraylist calledListItems.Everything is correct after the first For Next Statement - the listbox1Combobox1, and ComboBox2 all have 11 items. After the second for next loop, Listbox1 and ComboBox1 have 6 items, but ComboBox2 has 11 items, even though ListItems has only 6 items.
ListBox1.Items.Clear()
ComboBox1.Items.Clear()
ListItems.Clear()
[code].....