I have following code for 3 DataGridView Controls in my VB.NET winform application. How can I simplify this code?
With DataGridView1
.Columns.Add("Column 0", "TaskName")
.AutoResizeColumns()[code]........
I was just wondering how you would go about simplify this code as its getting very annoying manually going through and changing the index value for the arrays.
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In my Previous Thread < My First DATA Base Application > About DATABASE Crazypenie Give me Code:[code]
View 7 RepliesIt is possible to create progress bar like moilla for winform application code in VB.
View 3 RepliesPublic Function CalCheckSum(ByVal ByteList As List(Of Byte)) As List(Of Byte)
Dim total As Integer = 0
For Each b As Byte In ByteList
[code]....
I have created a simply Pizza program (for a summer project not education related) that uses check boxes to determine what the customer wants. Basically a simple pizza ordering program.I was wondering as I have used the If statement over and other again for different parameters and variables, is it possible to use multiply arrays to simply the VB Code...I was advised to use Constructors in VB.Net Or is there a more simpler way to go about creating this program...or a better way of programing?What about decreasing the repetition in the code?
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CompatibleTextRendering support for winform controls. label, check box etc have a property UseCompatibleTextRendering when this property set to true your app support East Asian languuages without having installing there languages on windows. But there is no UseCompatibleTextRendering for textbox, listbox, contextmenustrip etc i can Inherits ContextMenuStrip for this support using this code.
Public Class MyMenu
Inherits ContextMenuStrip
Public Sub New()
Renderer = New MyRenderer()
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if we can add this support to other controls like listbox combobox etc.
Where can I find alternative button controls for vb.net Winform?
View 3 RepliesI'm trying to create a list of labels and textboxes. No errors but they aren't rendering on the form. I have confirmed my loop have values[code]...
View 1 RepliesIn main thread I create panel(s) (based on some configuration), and then in the next step based on the file type (like video, ppt, image...) I create appropriate controls (dynamically) to show on the forms.
The creation of the control will be done in separate threads (for each file). After creating the control, it throws an error when I try to add that control to the panel (which was created in the main thread), something like cross thread violation, control was accessed from one thread other that it was created.
Can some one please help me in this regard? In this scenario, everything - creating the panels and controls - will be dynamic. Nothing will be static.I tried some of the articles found here on StackOverflow (like, control.BeginInvoke() .. etc), but wasn't able to solve my problem.
I've created a news ticker control, which reads from RSS feeds and scrolls the text Horizontally. The plan is to have 3 of these on my Windows form, which will each display their own information.
The control is created as a label, which is populated with the text, and then scrolls right to left using a timer, once the label gets to the end of the text, and disappears of the left side, the rss is re-read, and then the cycle resumes. The problem is that with multiple copies of this controls on my form, once one gets to the end of it's run, all three freeze while the rss is reread, rather than just the control that needs to do it.
Is there a way to run each of these controls independently (threading?)? Or is there a glitch in my code causing this? (below - some elements not included, but it should be fairly obvious what is happening!)
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I have a form with a datarepeater that contains various controls (i.e. datetimepickers, text boxes, combobox) that are populated via a binding source. I also have other controls on the form that are not part of the data repeater. I would like to force validating all controls after the data is populated. I have successfully forced validating the non-datarepeater controls using Me.ValidateChildren() at the end of my load event. However, it does not fire the validating events for the controls within the data repeater. I have unsuccessfully tried many different attempts to set and move focus within the datarepeater controls trying to get the validating events kicked off. I am not sure where would be the best place (e.g. in drawItem? in ItemCloned?) to place the code and what it should be exactly.
Here was my latest attempt:
Private Sub DataRepeater1_DrawItem(ByVal sender As Object, ByVal e As Microsoft.VisualBasic.PowerPacks.DataRepeaterItemEventArgs) _
Handles DataRepeater1.DrawItem
For i = 0 To e.DataRepeaterItem.Controls.Count - 1
e.DataRepeaterItem.Controls.Item(i).Focus()
e.DataRepeaterItem.Controls.Item(0).Focus()
Next
I successfully handled the validating events in the data repeater caused by user input errors. However, I have the unusual situation that the data coming into my form is already bad for some of the controls. The purpose of the form is to validate the data coming in to it and from user-input. I am newbie with vb.net.
I drew a Group Box around a bunch of controls cause I wanted to the Box, meanwhile all the controls are glued to the Group Box. How can I remove the Group Box without removing the Controls?
View 1 RepliesI need to get all controls on a form that are of type x, I'm pretty sure I saw that code once in the past that used something like this:
dim ctrls() as Control
ctrls = Me.Controls(GetType(TextBox))
I know I can iterate over all controls getting children using a recursive function, but wondering if there is something more easier or straightforward, maybe:
Dim Ctrls = From ctrl In Me.Controls Where ctrl.GetType Is Textbox
I have a winform with a main panel that is anchored top, left; dock: fill, and set to a specific size to contain another panel of content that we want to scroll through. The other panel along with a few other controls are on the main panel. Now, for some reason, after running the application the controls will be shifted down (never horizontally) some random amount. Now, the "random amount" may in fact be the last position of the scroll bar or something, but either way, it is unintended functionality. I have resorted to automatically resetting the locations of these controls on the main form in the constructor?
View 1 RepliesIn words, what control can I use to set and display column and row header data then allow the user to populate the rest of the grid? The webforms gridview control will not display at all if its contents are empty. What's best practice for this kind of user entry? Do I embed an excel spreadsheet? I will also need to read the user input too.
View 3 RepliesI'm using visual studio 2008. i have a datagridview in a winform. I've bound to it using an object
Private Sub LoadAllCampers()
Dim Os As List(Of LE.Camper) = Nothing
Dim Oc As New LE.Camper_Controller
Os = Oc.GetCamperData(0)
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I have a tag setup on the ID property within the Camper class. when i double click on a row in teh datagridview, i do a me.dgResults.tag and it always shows the first rows ID value. If i change the ordering within the class, it will display a different value, but it's always the first value in the datagridview. I'm missing something simple to get this working.. just don't know what it is.
I'm just a beginner at VB.NET...I want to be able to insert a combobox control onto my form through code but I'm not sure how. Google doesn't seem to answer.
Something along the lines of (I have no idea)
Me.AddControl("Combobox")
I would obviously then need to set the properties to setup the position/size etc.
Can i merge column header in datagridview (Winform) as below (Using VB language)
View 3 RepliesI've got a basic VB.net 2.0 application together in VisualStudio 2005. Within a form, I've tied [enter] in several text boxes to a button. What I'd like to do is "press" the button from getField_KeyDown() to give the user a visual indication of what's happening.With the code below, the button click work is done but the button's look doesn't change and the user is left without feedback.
Private Sub getField_KeyDown(ByVal sender As System.Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles txtGetKey.KeyDown
If e.KeyCode = Keys.Enter Then
e.Handled = True
Call btnGet.PerformClick()
End If
End Sub
How can I make the button looked pressed while the btnGet.PerformClick() work is being done?
I'm using paging in a WinForm application (VB.NET) using the code below. This works fine, but when I click on the column header this will only sort the rows from one page. If I move to the next page, the sorting is gone.[code]...
View 2 RepliesHow to change the row name with option button?If option button export selected:
Private sub optexport_click()
txtimport = "I"
fgcargo.textmatrix(0,2) = "bl number"
fgcargo.textmatrix(0,4) = "date"
end sub
If option button import selected:
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We have a winform application using Oracle DataAccessClient.There is a gridview and textboxes where we when we click on a row we can populate the textboxes to show more of the data so the user does not have to scroll horizontally.The code that does this is in the cell click event. We want to also do this if the user presses the up or down arrow. We put the code in the PreviewKeyDown event but we are getting the row that had the focus rather than the row that has the current arrow pointing to it. We searched the web at a lot of forums but we can not seem to locate how to do it. How do we move the focus to the row the arrow is pointing to in the grid? [code]
View 2 RepliesI have a maximized form that has controls at the top of it and a large DataGridView that is docked below all the controls. Its kind of like the Ribbon in MS Office. The controls cover about 1/4 of the screen at the top. I would like a way for the user to click a button to hide all the controls then automatically expand into the place the controls were so the user can view more data in the DataGridView and visa versa. For example, in MS Office Excel you can hide the ribbon by clicking a tiny button that has "^" on it.
I'm not very familiar with all the controls in Visual Studio so I would like to hear some recommendations. Is this situation ideal for a SplitContainer or ToolStripContainer or am I way off base here?
Does anyone out there have any experience programatically retreiving the lat/long from a GPS attached to a mobile PC?team I'm on is currently looking at hardware options--as the programmer who will eventually have to live with whatever is selected I was wondering if anyone out there has had experience writing .Net programs that interface with a GPS?
View 4 RepliesI am presently working with winforms and I would like to add facebook like button to my winforms.So at present I have downloaded facebook developer toolkit and after that I am trying to add the like button.So I would like to know how to proceed further to achieve in adding the like button.
View 1 RepliesI am a newbie using VB.net in VS 2008. I took over a vb.net winform application that has a binding navigator in it. The users wanted to add 2 new fields to the form. I added the new fields to the SQL Server 2005 database. I refreshed the Data Source tab in the project. It recognizes the 2 new fields.
I dragged them onto the form. When I go to add a record through the application, it does NOT save these 2 new fields. I check the properties for these 2 new fields under "Data Bindings" and it shows under the "Text" property the correct Binding Source and column name. I need to store these 2 new fields to the table.
I am currently developing a WPF application that will utilize existing WinForm dialogs. I'm experiencing a long lag between the time I call ShowDialog() on a WinForm to the time it is displayed.Even when reusing WinForm dialog objects the lag time is nearly as bad on the second hit. Meaning that the problem isn't in the constructor. have a work around to increase speed or know why the speed is so slow?
View 2 RepliesI have Created an windows Application in .Net, when i start it first time, it takes lots of time to load. however i have used StoredProcedures to get data from database.So is there any technique to decrease the load time of an application?
View 2 RepliesI have hierarchical tree like folders,
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I want to populate these folders to tree control. Then if we click any node of the tree control, that should open the related folder. And can we design treeview control like flowchart or powerpoint smartart organisation chart?