How would i only put a image to the sub-parent, and not the parent it self? Below a made a code which adds image by node.ImageIndex = 0, and then attempts to remove it by node.ImageIndex = Nothing. I thought by assign the value to Nothing will work? [Code]
View 2 RepliesI'm trying to display a image by treeview item checkbox with the code below.
Dim itm As ListViewItem
itm = New ListViewItem("Test")
itm.ImageIndex = 0
ListView1.Items.Add(itm)
Is it possible to out sort a listview by a imagelist index? 0 being the top and 9 being the bottom?
View 3 RepliesI need to loop a ListView and check each items imageindex. If it is a 5 or 6 change it. What i have so far...
Array.ForEach(lvw.Items.Cast(Of ListViewItem)().Where(Sub(lvi) lvi.ImageIndex = 5 OrElse 6 then ......))
I'd like to verify if an image control has an image loaded . If it does , I want to unload that image (and load no image) , but if the image control has no image loaded , I want to load an image . Is it possible ?
If ImageMY.Image.Equals(Nothing) Then
ImageMY.Image = System.Drawing.Image.FromFile("C:ImageBlaBlaBla.jpg")
Else
[code].....
This is a challenging one that got me stumped while I was coding today. Suppose I am running the Sub Test1() and Test2() and would like to print out the value of the Shadows method of the instance of the object I am passing in to TestCall() (see below - it is clearer) using the following restrictions:
Can't change the contents of Class A, B, and C
Can't change Sub Test1() and Sub Test2()
TestCall() can't have an if, select case etc. statement that tries to figure out the type
[code].....
I have a main form, and some sub forms, and each sub form can have some sub forms. When I have multiple sub forms open, and I try to get data from the parent form, it returns the data from the wrong parent form.For example I have two instances of Mainform.subform running. If I do something like this in a child form of one instance of the subform. It returns data from the other subform.
dim l = Mainform.subform.listofdata
Edit:I am using visual Studio 2008. Winforms, form designed using designer. In my mainform I am doing this
Protected Friend frmMain as Mainform
frmmain = new mainform
In frmMain I am doing this
Protected Friend frmsub as new Subform'
frmsub = new subform
[code]....
I would like to know if there is some simple code to release a child control from it's parent control, without having to name the parent control. In pseudocode, I'm looking for something like this:
[Code]...
How can i set the transparency Key in MDI parent Form?
View 1 RepliesI'm developing an application which is having Menustips with few elements. My structure is as follows;
Add-on Modules
|_ Data Export
| |_ Back Office export
[Code]....
I set the visibility in each leaf element as per the permission given in DB. But I want to set visibility=false in case all the leaf elements are set to false.
e.g If POS interface and Backoffice Interface are set to False, Then I need to hide the Parent (Interfaces) too.
I've been looking into a way to obtain Parent Processes and then list them in a TreeView so I can list the child processes as child nodes However, it doesn't look like the framework has any built in methods. I thought I heard something about MS putting it in the .NET Framework 4.0. But, that's irrelevant at the moment.
Since there are no specific methods, is there still some way I can manually retrieve this info? Or would have have to use some unmanaged code? Maybe an API?
have a form with 3 comboboxes and 3 Bindingdource dropped on, Now I can manage to have the first dropdown box display a list of manufacturers ok then when one is selected to display the range of products made and be able to open a form etc based on that, but what I really want to do is in the 3rd combobox display a list of models of the product in combobox2... Is this possible?. I have spent hours trying to figure this out and looking on the net but all examples only point to 1 parent and 1 child..
View 3 Repliesim making a 'program' and its a Head form. with 3 Subforms in it. Well. i added a Menustrip.As soon as the forum starts i have a Load timer. (see Image 1)
1.Thats how it needs to be. Also when the Subforms are loaded.But, Now the problem. When the forms are loaded. The Menustrip ends up wrong placed and Resized?
2.How to work this away? The menu strip needs to stay On top of all the others. and the Menustrip goes back to normal as soon as i click one of the Title bars of the Subforms?
i have this MDI parent and A Menu..... in a file menu, i have a log-in... when you click the log-in, the log-in system will show...my problem is when i click CANCEL then click it again it will be separated in the MDI PARENT and form another window..
here's a picture of it:
I have a bunch of VB.NET programs that have a general purpose logging function to log events, errors, exceptions, etc. It looks like this:
Sub LogMe(Msg as string)
LstLog.items.add(now.tostring & " " & Msg)
End Sub
I wrote a few VB.NET DLLs that contain classes used my my VB.NET programs. In thoses DLL classes, I would like to also trap some events, errors, exceptions, etc. But I want them to be logged using my main LogMe function. Here is some pseudo-code of what I was looking for:
' Main program code
imports MyLib
' Initialize program
[Code]...
I assume I will need to define Delegates to save my LogMe fonction pointer
In VB6 you could BITBLT things around before refreshing the screen. In .NET, I'm aware of DrawImage, but that can only be done on a paint event rather than before anything gets painted. The issue I have is, I need to open several files with image data in them and then build a bigger image with those smaller images. Before I could open them, BITBLT them to a Buffer. As far as I can tell .NET offers no way to do this as the only function I've been able to find (DrawImage) only works within the paint event. Is there still a way to do this in VS08 or no?
View 6 RepliesIve been programming in VB6 for years, i figured its time for an upgrade. Here's what im doing, and what the problem is:
Im loading a bunch of pictures on top of one image. They are all PNG files, and some of the images have transparent edges, and some semi-transparency within the image itself.
So basically, i need to be able to load these images on top of the other images, and still maintain the transparency.
Is this possible in VB08? This is one of the main reasons i moved to 08 from vb6, more things possible including multithreading.
How can i write code to check if the hyperlink that would show the data for the child table has been clicked. When i try to use code such as currentcell.gettype it would simply say datagridcell but does not provide any more information?
View 4 RepliesI can't find a way to change the opacity of a mdi form within it's parent. I can change the parent form's opacity under properties, but can't change the embedded mdi form's opacity under it's properties. Opacity = 0.5 doesn't change the opacity of the mdi... works fine for the parent form. I was hoping that the embedded mdi forms functions would still be independent of the parent in order for me to change it's opacity.
View 2 RepliesI Have a DataRepeater(Power Pack3) placed in a form named Form1.it has a dataRepeaterItem named UserControl1I have to access Form1 programatically from UserControl1...Like.... UserControl1.Parent.parentForm...................
View 8 RepliesA form has a multi line textbox that is read line by line searching for "MSH". When found it adds that line as a parent to the treeview. each following line is added as a child. Works fine if only one "MSH" line but if more than 1 I get must clone or remove message. I did clone the message but I don't want a duplicate of what is there. I have tried several variations and have not been able to get the 2nd MSH to be added as a child but not parent.I have started to repeate code so was hoping some of you experts can point me in the correct direction. Here the section of code that partialy works.
Dim LoopK As Integer = 0
Dim New_MSH_Parent As String = "No"
Dim MSH_Node As New TreeNode() ' parent node
[code].....
ive been trying to get statusstrips merging so i can click a label to bring the child form to the front when i have multiple childforms open. I have this code which does work but on closing it leaves the label on the mdiparent and also im struggling with the bring back to front code. i dont want it to open another form just bring it back to front. I have statusstrip set to visible false on my childform. heres some code for merging, this is in mdi parent:-
Private Sub Form1ToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Form1ToolStripMenuItem.Click
[Code]...
In my DataGridView table i have one column called "Category".In this "Category" column values are like
3101,
3102,
3103,
[code].....
I'm new to this Visual Basic stuff. I have TreeView under the name of TreeView1 and it has two Parent nodes, one is Library and the other is Store. Under Library and Store I have childnodes and thats were I'm stuck. For example under Store there is Downloads and Apptrackr.
What I want is when a user clicks on Apptrackr it runs this piece of code
WebBrowser1.Visible = true
DownloadsBrowser.Visible = false
And when the user clicks on Downloads it then does the opposite
WebBrowser1.Visible = false
DownloadsBrowser.Visible = true
I am going to ask a dumb question. I want to update my tables (two). There is a one to many relation between them. I know how to update when only one table is update, but how do i update when there is many on the other side. My problem is that , if one of the records on the many should become redundant, how would i delete it in the update process. If only the content changes , it is not a problem, i know the data just gets written back to the tables, but if one of the child records is not delete, how would it work I need some clue on the SQL statement using OLEDB
View 2 RepliesI have a situation where a database table is updated with records inside a loop. Every record in this table has a parent child relationship with another table. This child table is also updated subsequently inside the same loop.I am creating the datatable for Parent table and adding records inside the loop, but committing the records in the database (using SqlCommandBuilder) outside the loop only once.
Inside the loop I am also calling the function for updating records in the child table. Because the adaptor and datable objects are created inside the child table function, I need to commit records in child table inside the function only. So this happens before commit of parent table. Because there is a PK-FK constraint in the database, an error is generated.
Simplest solution would be to bring all code inside one function. But I don't want to do that. Besides this parent child relations can go upto any levels.
[Code]...
My MDI parent form sizes itself so that the activity field (with the start button etc) doesnt show. This happens every now and then and I cant figure out why.
Of course I want to see the activity field,
I need to know how to use listview, I'm having trouble using it.What are listviews uses?What can be listed in listview?What cannot be listview?If an image is in listview, will it display a thumbnail of the image?
View 4 RepliesI want to draw an image onto another image object but use an alphamask specified from another image that is grayscale.
I am drawing an animation manually so don't want to do this pixel by pixel as this would be extremely inefficient.
I'm having a problem getting the src of the image the mouse is hovering over in a webbrowser. I can get an href just fine, just not an src. To get the href, I used this
Something = Webbrowser1.Document.ActiveElement.GetAttribute("href")
When I try to do it for an image, nothing happens. How do I get the image location?