Exception Is Generated While Adding Owc11.chartspace To Panel At Runtime?
Feb 14, 2011
Exception is generated while adding owc11.chartspace to panel at runtime.
code is:
Imports Microsoft.Office.Interop.Owc11
Public chartspace1 As ChartSpace
chartspace1 = New ChartSpace
Me.Panel3.Controls.Add(chartspace1)
Exception :Unable to cast COM object of type 'Microsoft.Office.Interop.Owc11.ChartSpaceClass' to class type 'System.Windows.Forms.Control'. Instances of types that represent COM components cannot be cast to types that do not represent COM components; however they can be cast to interfaces as long as the underlying COM component supports QueryInterface calls for the IID of the interface.
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Jun 21, 2012
Code:
Private Sub btnMonSet_Click(sender As System.Object, e As System.EventArgs) Handles btnMonSet.Click
My.Settings.tweetMon = tbMon.Text
If tbddOccurrence.Text = "Just Once" Then
If cbToday1.Checked = True Then
lblPanel.LblScheduledTweet1.whenDate = Date.Today
[Code] .....
The goal of this code is to add a control to a panel in runtime. This MUST be done in runtime for the purpose I intend. The problem is that, when I add a second control, the first one disappears.
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Feb 10, 2010
I have written a program which uses a SQL exception class and then use it show custom messages for the primary key violation. Also i want the primary key value that caused the violation. How can i get all the primary keys which generated the exception from the sqlexception object.[code]
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Mar 2, 2009
I was trying to move some dynamic control within the parent container like panel or a group box how do i do that?
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Jan 15, 2011
How do you catch an exception generated on another thread
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Dec 20, 2010
I have created multiple dropdown list at runtime and populated with data. I also have added an eventhandler to determine the selected value of the drop down list.
The code is as follows :
Dim tbl As New Table()
tbl.EnableViewState = "true"
[code].....
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Oct 22, 2011
Private Sub ListOfCrops_SelectedIndexChanged(sender As System.Object, e As System.EventArgs) Handles ListOfCrops.SelectedIndexChanged
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Sep 10, 2009
for an application, I generate RichTextBoxes during runtime with the following code. The code generate a new node in Treeview under parent node "Notes".
Dim RichTextBoxCounter As Integer = TreeView_MainForm.Nodes_("NodeNotes").Nodes.Count
Dim NewNote As New RichTextBox
NewNote.Size = New System.Drawing.Size(845, 550)[code].....
Now, I want to show the RichTextBox if the associated child node is selected. I tried the code below, but it does not work.
If TreeView_MainForm.SelectedNode.Text = "Notes" Then
Dim NewNote As New RichTextBoxPrintCtrl
If TreeView_MainForm.SelectedNode.Parent IsNot Nothing Then[code]......
provide the code to display the RichTextBoxes after selecting the node.
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Jun 18, 2009
I've got a form with a TabControl. PictureBoxes (containing thumbnails) are added to each TabPage thru a loop. A click event Handler is added for each PictureBox. When a PictureBox is clicked, a new form is created thru code and a PictureBox is added to it that shows the pictures enlarged. What I need is to add another Handler to the PictureBox in the code-generated form so that I can rotate the pictures because some of them (photographs) were taken with the camera at 90 degree angles from vertical. I've tried to come up with a solution but I always run into the problem of the PictureBox on the code-generated form needing to be declared WithEvents before a Handler can be added.
Code for adding PictureBoxes to TabControl:
'Variable p declared public withevents at class level
p = New PictureBox
img = Image.FromFile(Path.GetFullPath(picfile))
[Code].....
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Feb 17, 2010
i'm worried about doing this since my changes will be overwritten when the dbml file is auto generated again (as they often are).i'm thinking of doing a partial class and writing out the same properties to annotate them, but worried that it will complain about duplicates, and the reason i can't even experiment brings me to the second part of my questions...
that, the expandable arrow on my dbml file listing is missing, right clicking and selecting "View Code" just displays an empty partial class as below.
[Code]...
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Mar 27, 2012
In the early generations of VB.NET visual studio, I used to see an automatically generated region named "Windows Form Designer generated code" that includes the code that generates the controls at the surface of a form. But what happened with VS 2008, I can't see that region any more ? Where are the lines of code that are automatically generated that create controls and set there properties ????? Luai Alrantisi, BSc in Computer Engineering, University of Ottawa 2007, Canada. IT Manager of MTN Mobile Telecom.
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Oct 22, 2010
I am basically using a user control for the first time, so hopefully it's just a dumb mistake.I have a simple user control
<UserControl x:Class="TestProject.WebApp.myUserControl"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
[code]....
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May 28, 2009
how to add controls in panel control runtime. I mean, I want to add group box at runtime. When I click on my button, it should add a group box in my panel and when I click again, it should move the first group box down and add the second. Every group box should have a label control in it.
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Jun 23, 2012
I trying to add to picturebox to a panel, the idea is to add an unknown aamount of pctureboxes to a scrollable panel. For now im just trying to add 1.
Dim PB As New PictureBox
With PB
.Name = "MyPic"
[Code]....
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May 31, 2011
I found this code (Class) on Net for resizing controls at runtime by user on GUI as we do it design time.
HTML
Public Class ResizeableControl
Private WithEvents mControl As Control
[code].....
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Mar 17, 2009
i have created my own custom propertythe property is of type collection ,it displays a form which allow the user to add a list of images and strings,it stores the data in a collection ,my problem is , i have noticed that after adding items to the collection at design time , there is no code generated in the .Designer file of the form and there for when i close the for / save it and reload it , all the items that i added to my custom property are gone.my question , what did i miss here ? how do i make my custom property generate code at the .designer file for the items i have added to my property?
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Jun 23, 2010
When I want to create a new panel at run time when I clicked a radio button it displays an exception at panel2.location.
Dim panel2 As Panel
Private Sub RadioButton5_CheckedChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles RadioButton5.CheckedChanged
panel2.Visible = True
panel2.Location = New Point(200, 300)
panel2.Size = New Size(200, 300)
Me.Controls.Add(panel2)
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Jan 13, 2010
Is there any way you can move a panel using the arrow keys during runtime?and is tehre a way of popping random objects in a game. Like you have this spaceship moving and your "Alien foes" or whatever attacks you. So you want them to pop up randomnly every few seconds or so. How?
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May 4, 2009
I would like to resize a panel at runtime using a mouse.I only need Vertical resizing.So, I have panel1 and docked a label to the bottom of the panel, this will be the drag bar.Now I'm thinking I need to use the mousedown event and capture the Y coordinates of the mouse? On Mouse up set my panel height to those new coordinates?Also, I'm pretty sure my panel won't redraw itself when this is going on. Should I set the panel height while I'm dragging?
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Aug 14, 2010
I need to create a custom panel that will let me add items to the 'Panel Tasks' list: how I might accomplish adding items to this list and make it usable during runtime? I look at the Controls.Panel properties, but nothing was immediately apparent and, surprisingly, I wasn't able to find much via Google.
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Nov 12, 2010
I wonder how you can make a picturebox selectable at runtime and also change the size and location during runtime?
Well I know how i can change the location of a picture box during runtime but that is only with a picturebox that is already defined in the form before runtime.
So I write an event for that particular Picturebox.
But now i want to do the same thing with a picturebox that a user can add during runtime and then the user should be able to select and move the picturebox.
So now i can't add code to the picturebox event so I wonder how you should do this. ( Maybe with reflection?)
And what if the user added 10 picture boxes and selects a certain picturebox. How do you make it possible that the picturebox the user clicks on is selected?
Should you store each picture box location on the Panel and then when the user clicks on a certain pixel in the panel where a certain picture box is it get's selected?
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Jul 27, 2009
I am designing a simple user interface using winforms. In the designer I have a panel on the form and would like to add a datagridview control into the panel at runtime and set the dock property of the datagridview to 'Fill' so that it fills the panel.
I am struggling to do this and following code is not working out for me:
Dim MyDataGridview as New DataGridView()
MyDataGridView.Dock = DockStyle.Fill
Me.MyPanel.Controls.Add(MyDataGridview)
I don't get an error but the datagridview isn't visible. It gets added 'behind' the panel and so I tried using .SendToBack() and .BringToFront() methods thinking that the panel was hiding the datagridview but this doesn't seem to work either. At any rate, it seems like the datagridview is being added to the form but just not docked within the panel
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Jan 22, 2010
My project is a server/client application, how do I copy existing panel with labels and pictureboxes to show stats of clients connected? I mean once the server accepts a client, stats of that client is shown on a new panel but has the same contents as the existing panel. Any Idea how to do this? I was thinking to make a set of panels and hide them if there's no client connecting but what if there are too many clients connecting more than the set of panels already made?
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Jan 19, 2009
I am trying to add controls to a Panel in a loop, but for some reason they are being added from the bottom up instead of top down.In a little test program I am running this
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
For i As Integer = 1 To 10[code]....
And this is the result I get ... the controls are added starting at the bottom. I need them to start at the top of the panel, with each new control being added under the previous one. If I remove the Dock statement, then the controls just get added on top of each other.
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Aug 17, 2010
So I'm adding a tab panel to a child window. A lot of our controls here are user defined but this looks like an ExtJS issue. When I add a tab panel, and then try and add controls and stuff to that panel, everything is cut off on that panel.
Here is the code I am using:
Using ViewDetailsWin As New Pages.ChildWindow
With ViewDetailsWin
.IconCls = Model.WorkflowStepDefinition.SmallIcon
.Ref = "viewDetailsWin"
[code].....
I can't even see the dropdown at all unless I scroll on the tiny little scroll bar it creates. It gives like a quarter inch on the screen to see anything inside the tab panel. There is no size property on the tab panel from what I can see.
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Jun 10, 2011
I am working on a project for a handheld in Visual Studio 2008 where I need to add a group of labels to a panel that correspond to a record on the database. The record is a "Pass/Fail" Record. So, if the record is a "Fail", the failed items will be added below the main group of labels; therefore, many child groups of labels will be added below the main group, which is theoretically the header record. I am using a second panel to add the failed items. My issue is how to dynamically add, name, and position the failed item labels and panels. Below, I have included a sample of what I am trying to accomplish.
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Jul 10, 2010
I'm trying to add a group of four radio buttons to a form. There are other radio buttons so I'm grouping them by placing them on a Panel. However using the below I just get the panel added to the form without the radio buttons... Am I doing something wrong here?
Dim arrRButton(3) As RadioButton
arrRButton(0) = New RadioButton
arrRButton(1) = New RadioButton
[code].....
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Feb 15, 2012
I have a parent panel with child panels that contain images. I am looping through the panels to save the images in the order the panels appear in the parent panel. [code] I can also re-arrange the panels via mouse. The problem is that when they are rearranged, they do not retain their order when saved.. They simply are saved in the order they were added to the parent panel.So my question is, does the for loop use the index set when adding the panel? If so, how can I manipulate the index in runtime while arranging the panels via mouse.
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Sep 24, 2009
In my application,i have a gridview in which columns are created at runtime.Actually these columns are created when i am entering data in a database table.[code]where Column1,Column2,column3 may vary during runtime.i need to enter values to these columns during runtime.But i cant bind these columns because these are created during runtime.The first column "Description" will not change.It will remain constant.For each description, there will be values for each column.At last these data will be saved to the database.How to add columns in the gridview during runtime?
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Aug 15, 2011
Why I am getting a runtime exception when trying to run this code?[code]...
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