The ContextMenuStrip tied to the ListView control. However, the right click option (edit)appear where ever i click on the ListView area, this gives me exceptional error because the implementation of edit can only cope with a selected row. I only want it to appear when on a selected row (blue highlighted row). How can i do it?
View 1 RepliesI am creating a program that allows a user to view a list of foods in a combo box, add that food unto a list box, and adds all of the calories of that food together. When the user highlights their select food, the program automatically shows the amount of calories for that particular food in a text box. The program is getting the food and calorie information from an access database. I managed to get all of the food calories to add up properly, however, I ran into a problem. Sometimes, well, most of the time, when I select certain foods from the combo box, the program automatically reselects another random food, usually a food that begins with either an A, B, or C. Also, the other random food that the program chooses usually has the same amount of calories as the food I originally wanted to choose. I have over 6,000 items in the database. I don't understand why this is happening. This is what my code looks like for the button that adds each food to the list box:
Private Sub Button4_Click(sender As System.Object, e As System.EventArgs) Handles Button4.Click
Foods_Selected.Items.Add(ComboBox1.Text)
Static i As Single
[CODE]...
And this is what my code looks like for the button that adds all of the foods together:
Private Sub Button1_Click(sender As System.Object, e As System.EventArgs) Handles Button1.Click
Dim x As Single
Dim TotalCalories As Single
[CODE]...
I have no idea what to try. It's like the program just skips over random foods, even though all of the information for them is in the database.
I have a datagridview with transaction bindingsource I want the datagrid to show the sorted rows only not all the records when i enter a value into a textbox and click button sort.
View 1 RepliesMy program has a textbox and a listview. In the list view i have added three person's name, John, Kat, Adel.
How do I make it such that when John's name is selected in list view, John's age is automatically displayed in the text box?
And when Kat's name is selected in list view, Kat's age is automatically displayed in the text box?
i would like to click on any of the taskbar options that are loaded and have a msgbox show with the app name and app directory . maybe even what file is loaded in that app.
View 4 RepliesI have a Datagridview with 100 records and each records contained 15 field/columns hence it's difficult to read single record at a time completely. So my requirement is if I select a record and that particular records should display on a form or whatever
View 1 RepliesI am in need of a form that shows various options, exactly like the Options in Visual Studio. Since there are so many options I too want them categorized, with a TreeView to the left taking care of showing the right category.The usual 'easy' approach here would be to just place a TreeView control on the form, add some nodes, and give those nodes a tag or key that corresponds to a panel or UserControl with the options for that category.Since there will be a lot of options however, this is not really feasible design-wise; the form would be cluttered with possibly 50 panels, all of which I would need to select and bring to front from time to time to add controls to them that represent the options.
So I decided to create a custom control that does exactly that. The control is very similar to my Wizard usercontrol, users can add OptionsPanels at design time, which inherit Panel and simply represent one panel of options. When they do, the panel is added to a container panel, and at the same time a TreeNode is added to a TreeView. The control uses a custom ControlDesigner to handle design-time clicks in the Treeview, selecting a different node would select and bring to front the corresponding panel, allowing the user to add the controls he wants.
Due to the design time support the problem of having 50 panels is no longer present, only one panel will be visible at a time and selecting the right panel is as simple as selecting the corresponding TreeNode, just as during run-time. Anyway, I got all this working, but only for a single 'level' of categories. As you can see in the Visual Studio options, there can be multiple levels of categories. For example, the Environment node has a bunch of children, where each child represents one 'options panel'. There can even be deeper nesting, see the Text Editor node for example.Let me begin by drawing out the basics of how my control works so far.
The main control is an OptionsView control, which contains a SplitContainer with a TreeView to the left and a OptionsPanelContainer to the right. The OptionsPanelContainer is merely a Panel to which only OptionsPanel controls can be added, and which raises events when this happens, as well as when OptionsPanels are removed from it. An OptionsPanel also inherits Panel, and these are the actual panels the users will see in the control, one for each option category.For now, each OptionsPanel has exactly one corresponding TreeNode (and vice versa). In the Visual Studio options, each 'parent' category usually has a 'General' node as the first child, and the parent and this General node show the same option panel, but I am ignoring that for the moment.
The OptionsView control has a property Panels that returns the ControlCollection (Controls property) of the OptionsPanelContainer (in other words: it returns a collection of OptionsPanels that are in this container panel).
vb.net
<Editor(GetType(Designers.OptionsPanelCollectionEditor), GetType(UITypeEditor))> _ <DesignerSerializationVisibility(DesignerSerializationVisibility.Content)> _ Public ReadOnly Property Panels As Control.ControlCollection Get Return Me.PanelContainer.Controls End Get End Property
A custom CollectionEditor for this property takes care of the designer: even though the property type is ControlCollection, the CollectionEditor knows it should create instances of the OptionsPanel control instead of just Controls.When it does this, a corresponding TreeNode is also created and its Tag property is set to the OptionsPanel. Vice versa, the Node property of the OptionsPanel is set to the node. Hence the node and panel both know their corresponding object.
vb.net
Public Class OptionsPanelCollectionEditor Inherits System.ComponentModel.Design.CollectionEditor Public Sub New(type As Type) MyBase.New(type) End Sub Protected Overrides Function CreateCollectionItemType() As System.Type
[code]....
So far so good, this all works fine. I can add Panels via the designer and when I do a new TreeNode appears in the TreeView. I can select this node and the panel becomes visible (comes to the front).Now, I am a little stuck. How do I implement child option panels? And more importantly: how do I let the user add child panels?The most logical choice I think is to let each OptionsPanel have a property (ChildPanels or something) that returns the child OptionsPanels for that panel. Once the user selects an OptionsPanel then, he can look in the property grid to find its ChildPanels property and add child panels to that.
There is a problem though: what would this property return? It must return a ControlCollection of some container (this is, I think, a requirement for the designer features to work, otherwise panels are not added to the Form.Designer.vb file). But there is no container. I cannot add them to the OptionsPanel itself, that would make no sense because the parent OptionsPanel has its own set of controls (the options itself...), there cannot be another (fully docked) Panel on top of those obviously.The container of the main OptionsView then? That is not an option either, its Controls collection holds ALL OptionsPanels, not just the children of the selected panel. I cannot 'select' only the right panels either, that would require me to return a new instance of ControlCollection, it would be impossible to return the actual ControlsCollection that holds merely a small selection of its controls.
i m using these code for selecting data grid row [code]but , when no of row more then grid showing rows then grid not show selected row in grid screen, for showing selected row we have to use scroll bar, my problem is how to show selected row in grid automatically
View 2 Repliesi have this addform to add, edit and delete records in marriage tab, baptism tab and so on and before we can see this form theres another form the emform my question is how am i supposed to code the "view this event" button, that when i click on the selected row my addform will show up with the row i click on the view button is selected/highlighted on this addform (btw i bind all the textbox in my add form on the columns of my marrige table)
View 10 RepliesIs there any examples with a treeview like this [URL] /scree...tinel-smod.png is it a case of having to draw each form how you would like to then hide/show the controls depending on what is selected in tree view????
View 14 RepliesI have been playing with VB6 for quite a few years now and I can normally get by ok on my own.I finally made the move to VB.net, but I am totally lost.I have started writing a program that is basically a planner. It helps the user organize and plan activities with a client.I have created the ui and have added a BindingNavigator and it happily pulls in the records from my Access database which I can cycle through.What I would like it to be able to do is, allow the user to see all the current records (maybe in a flexgrid), select which record he/she would like to view, then the entire record is populated into the ui.I would have no problem in vb6 of course...but I could do with a little help in vb.net (2008).My main problem is I think is, once the flexgrid is populated, how to create the event that allows the user to view and update that record once in the ui.
View 2 RepliesI finally made the move to VB.net, but I am totally lost.I have started writing a program that is basically a planner. It helps the user organize and plan activities with a client.
I have created the ui and have added a BindingNavigator and it happily pulls in the records from my Access database which I can cycle through.What I would like it to be able to do is, allow the user to see all the current records (maybe in a flexgrid), select which record he/she would like to view, then the entire record is populated into the ui.
I would have no problem in vb6 of course...but I could do with a little help in vb.net (2008).My main problem is I think is, once the flexgrid is populated, how to create the event that allows the user to view and update that record once in the ui.
Hi is there a way I could keep the highlight of all selected item in list view. every time listview lost focus it's gone?
View 1 RepliesI have been looking ages on Google trying to find a solution. 2 weeks now and I cannot find it anywhere. I am trying to send the Module.Filename path to a text box for each selected item within a list view.This is my overall Code and my progress, if there is anything missing or needs to be improved just let me know =
Imports System.Diagnostics
Imports System.Management
Imports System.Text
[code].....
I'm currently creating a tabbed browser. Everything works fine as i expected. When it comes to history, I'm excepting a difficulty to navigating items from list view.
View 4 RepliesBasically, I want to get the column data from a selected row in a ListView (non-MultiSelect).how to do it if it's just the first column (lvw.SelectedItems(0).Text) but how do I get the data from the other columns?
View 2 RepliesI have a list view box that shows a few image files and when i click them i want the image to show in the picture box but i am unable to figure out how to do so i have tried the following code with no success,pbImage.Image = Image.FromFile(ListView1.Text)when i try this code i get an error saying,
View 3 Replieshow can i show all column names of a table in List view.Like table name is "WO"
Wo_no
T_Date
Emp_id
I am trying to change 2 textboxes so that they show the current list view selection. When I click to change the selection the program crashes. Here is my code:
Private Sub BookmarkListing_ItemSelectionchanged(ByVal sender As Object, ByVal e As System.Windows.Forms.ListViewItemSelectionchangedEventArgs) Handles BookmarkListing.ItemSelectionchanged
NameBox.Text = BookmarkListing.SelectedItems(0).Text
LocationBox.Text = BookmarkListing.SelectedItems(0).SubItems(1).Text
End Sub
I have a listview set up in Details View and I run a ascending/descending sort routine on the appropriate column when the user clicks one of the column headers.However, when I switch companies and reload the listview with new information, for some reason the event fires and I get an indexoutofrange exception as I believe that the information has not yet loaded when this fires.The e.Column property is set to that of the previous column which I clicked even though I have clicked nothing.
View 3 RepliesI link a combobox to display folders in a directory and a list view to show the files within that folder?
View 1 RepliesI have list box created and populated data. I need to display the related column in text box and related records from another table. I have attached my code file. But, it's throwing an error.
Imports System.Data
Imports System.Windows.Forms
Imports System.Data.OleDb
[Code]....
I have list box created and populated data. I need to display the related column in text box and related records from another table. how to do this? I have attached my code file. But, it's throwing an error.
Imports System.Data
Imports System.Windows.Forms
Imports System.Data.OleDb
'Imports System.Web.Configuration
[code]....
I have 2 drop down lists and 1 submit button. It works such that after the user has selected values from BOTH the drop down lists, then the user will click a "Search" button. My problem is, after the user click the "Search" button, the second drop down list is no longer displayed with the selected value, instead it displayed a default value. May I know how can I make sure the selected value remain selected even after the user clicks the "Search" button on the page?
For your info, my coding goes as
Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim strSelectedUsername As String
[Code]....
i i have a listbox and 1 button in my application thing i want is when i click on some listbox item auto press that button or when i click on some item in list box it remove selected items from list box just with mouse click
View 3 RepliesJust wondering if it possible to save a form. I have a form with dgv and various other user selected options.
Is there a way to save this form on closing so that it will open again exactly as it was closed?
I get some very generik trouble need to implement List View with Image in SubItem. All can be very fine ....But I need to use Virtual Mode. Whatever I search I haven't still found working solution's. I have found some C# code that seem's do that. But I can't convert it in VB.Net. let's explain detaly.
View 2 Replieshow to view the next record and previous record in the database.? just like in the picture below.? what condition should we use.?
View 8 RepliesThe user right clicks on my picturebox object. Good.When that happens, some code of mine executes and will generate a list of options.Then a menu appears where the mouse right-clicked, made up of these options.When the user clicks on one of these options, the menu is deleted and some code is run given the option index as parameter.How can I tell when the user right clicks? I can see an event handler for "click", but that includes left clicks.How do I create one of these menus? I mean, go ahead and right click something. That's the kind of menu I'm looking for.
View 2 RepliesI have a problem with my program, and it's really bad because I need to burn it to disk within 12 hours and I can't get it to work: If I create a record, add information to it and click on Next Record, the ID, Status and Notes boxes content will change but the rest of the controls contents are carried over to the next record and I don't know why or how. It was working perfectly but now it stopped and I never done anything.
View 8 Replies