Adding Images To Nodes Dynamically?
Feb 21, 2011
I have a simple tree, parent and child, that I create from files in a folder at run time (VB2010). All I want to do is assign one icon to the parent, and another to the child. I am using FileSystemWatcher set to watch the folders and update whenever there is a change. Here is the code:
'If there is a change in the Scan Folders relist
Private Sub scanFileChange(ByVal source As Object, ByVal e As System.IO.FileSystemEventArgs)
If e.ChangeType = IO.WatcherChangeTypes.Created Or e.ChangeType = IO.WatcherChangeTypes.Changed Or IO.WatcherChangeTypes.Deleted Then
[code]....
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Aug 24, 2011
I have the following code which checks for the value of the 'cc_supplier_status' column for each of the rows in my table. If the state is 0, I need a child node to be added to a node named 'Inactive Suppliers' in my tree view (tvw_Supplier) with it's text being the value of the 'cc_ supplier_ name' value for the same row.If the state is 1, a child node is to be added to a node named 'Active Suppliers'.If the state is 2, a child node is to be added to a node named 'Pending Suppliers'.The code I have now just filters out the status value for each row, and performs a select case on it. I need to know how I'd add a new child node to the parent nodes mentioned above.[code]
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Apr 19, 2011
I have an XML Structure in mind
<Holes>
<Standard>Imperial
<Type>SHCS</Type>
[Code]....
What do I need to do here to get the hole under the "Fit" node as I loop through the hole sizes?
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May 12, 2012
I have an XML file and I have a function to which this XML is passed as string. I have loaded this string in Xmldocument and I need to insert few children nodes under one node. This function returns the modified XML string. I want that whenever this function is called, new child nodes are added, currently, It adds child nodes once.Do I need to overwrite the XML file ? If so, How can I replace the node with new node ( with new child nodes added) so that It has child nodes added before the function is called again ?
My code looks something like this:
Dim doc As New XmlDocument
doc.LoadXml(applicationXml)
Dim parentNode As XmlNode = doc.GetElementsByTagName("prList").Item(0)
[code]....
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Oct 24, 2011
I know how to add a single node to a top level node in an XML document, but I cant figure out how to add multiple (nested) nodes to another node. For example, I want to add this node structure to node called "PaymentInformation":
<Prepaid>
<BillShipper>
<AccountNumber></AccountNumber>
</BillShipper>
</Prepaid>
Do I have to add each node separately or can I add them all at once?
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Apr 16, 2012
I have a question about using writeXml. When I use this method, it writes to the specified xml file like this:
<safety><Incident>
<Name>Jason</Name>
<AGE>23</AGE>
</Incident>
<Incident>
<Name>Frank</Name>
<AGE>25</AGE>
</Incident></safety>
But, I would like to add these nodes to a parent node, i.e.:
<safety><SomeNode><Incident>
<Name>Jason</Name>
<AGE>23</AGE>
</Incident>
<Incident>
<Name>Frank</Name>
<AGE>25</AGE>
</Incident></someNode></safety>
I am creating the xml by first creating a dataset (connects to an SQL db and runs a query, filling the dataset) and using ds.WriteXML(myPath)
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May 12, 2009
I am having a performance issue when adding a large array to a treeview. I am pretty sure that I am using the wrong method but I was unable to find a better way to load the tree.here's and example code of what I mean. this takes about 30 seconds to load into the tree.
Code:
Public Class Form1
Public StringArray(10000) As String
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
[code]....
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Oct 31, 2010
I am not sure I am getting the concept of referencing nodes in a treeview. When I hard-code nodes like:
tnParentNode = New TreeNode("ABC")
tvReports.Nodes.Add(tnParentNode)
tnParentNode = New TreeNode("Some Other Company")
[code]....
I get two parent nodes and one child off Some Other Company. However, when I pull information from a couple of tables to set up the parent and then the child nodes, I only get the parent nodes.So I pull the main parent nodes from one table and the child nodes from another table.This code pulls the parent nodes without any problem:
strSQLText = "SELECT lID, sCatName FROM Category ORDER BY iSortOrder DESC"
reader = GetReader(strSQLText)
While reader.Read
[code]....
But this does not add the child nodes. I am assuming it is because of the first line in the above reader.read while loop. I must not be referencing the proper parent node but I am not sure how to do it.
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Mar 9, 2010
I have a treeview. The root nodes have images set at 30x30 - is there a way to add child nodes with NO image or a smaller image? I can do a blank image, but each child is spaced far apart! I would like the child nodes to be like there is no image... tight and close to each other.
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Aug 25, 2011
I i'm attempting to add child nodes to a treeview inside a background worker's doWork() method.
I'm getting an exception because I'm in a different thread, and need to use the invoke() method.
Can anyone point me in the right direction?
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May 31, 2011
The code below displays a thumbnail of each image in a specific server directory and when I click on the image it pops up a nice full sized picture. It works perfectly.
I would however, like to be able to delete an image. I first thought I could have a button at the bottom of the page with a checkbox next to each image, giving it a uniqueID as per the filename but as they are dynamically created I couldn't figure how to handle the Click Event on the button for a randomly named Checkbox ID. Then I tried adding a button next to each item and then tried an OnClick & OnServerClick to call a Sub but this didn't work either.
Private Sub ImageList()
If Directory.Exists(Server.MapPath("JobImages" & DBC_JOB_JobID.Text)) Then
Dim MySB As New StringBuilder
[Code].....
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Nov 4, 2011
I have developed a C# DLL which contains some images included as "Embedded Resource" in the DLL. I would like to write a small external C# application that would allow me to dynamically add (or remove) embedded images to (from) my DLL, if possible without having to recompile it. Is that possible?
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Apr 30, 2009
I'm calling a webservice that is returning an unknown quantity of images in the form of an a collection of byte arrays. (I can't change this) I need to display each image on a single aspx webpage. I'm currently using the Microsoft.Web.GeneratedImage control; [URL] to display the images.
[Code]...
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Apr 29, 2011
I'm trying to add a "panel" with controls dynamicaly. Something like the code below, Clicking "Add" button, displays a "Panel" with the controls(which are within a table), the number of "Education" someone can enter is unlimited. I know how to capture the data, but i can't figure out how to implement/code this,
[Code]....
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Jan 13, 2011
how to go about adding a reference to an assembly at run time? I am writing a vb.net (2008) program that will send email via Outlook. But at compile time I do not know which version of Outlook the user will be using - Outlook 2003, 2007 or 2010.
How do I add a reference at runtime which will a) satisfy this condition and b) allow me to compile the program? If I do not have a reference at compile time then my Outlook code will fail
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Aug 31, 2011
I'm all new to this treeview business. I have a fixed treeview, very simple and basic. Only two levels, parent and child nodes. I just need two things out of this treeview.
1) If parent is checked, check all child nodes.
2) If just one child node is unchecked, uncheck parent node.
That's it! I've been looking for this for 30 mins and I cant find it. Maybe because my vb.net is old, it doesnt seem to be the same as others =/ I'm using vb.net 2003.
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Dec 15, 2011
I have a problem with my treeview. I have two child nodes with different parents which contains a literal (*x). In this case (*1) (view image)
[Code]...
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Nov 22, 2011
I need to add images that are stored online to picture cell on a datagrid. i can store images that are saved on by hardisk know how to add an online image?
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May 22, 2012
I've created a ListView called ListView1. In the first colum, I want to add either a stop sign or a grean light.
I create the columns
HTML
ListView1.Columns.Add("Item Column", -2, HorizontalAlignment.Left)
ListView1.Columns.Add("Column 2", -2, HorizontalAlignment.Left)
[code]....
This seems to generate alternating stop signs and green lights in the first column. Instead, I want to be able to decide which one goes on each row on the fly, as well as change them later.
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Oct 1, 2011
I'm developing a website in visual studio 2008 using (asp.net/vb)I have to allow registered users to build pages and add controls that are already defined by the same userMy problem is how to build this page dynamically?In other words, I'd like to make like any CMS (e.g. Joomla). CMSs allow us to make new pages and add our controls then save them..
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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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Apr 26, 2012
VB.NET 4.0 framework Windows Forms Application. So I have a DataGridView that I have dropped on my form in designer, set all the columns to readOnly, AllowUserToAddRows = FalseAllowUserToDeleteRows = False. Now for the part where it the code is going bad at.
My function Looks Like this:
Private Sub fill_items()
Dim prop As List(Of property_info) = db.property_info.ToList
[code]....
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Jun 15, 2011
I have a web form but I have to do this by code since I dont know the number of hyperlinks I need from the beginning.How can I add some hyperlinks with Image in a label, the number of hyperlink depends on the number of rows of a query, and each row give me the link information to navigate.
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May 26, 2011
I am attempting to dynamically create a profile page. Everything works fine except when I try to add the title (surrounded by <h2> tags) to the lbl control which is inserted in the select statement. Let me know if this is too confusing and I will attempt to explain further.
[Code]...
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Oct 12, 2011
I develop a student information system with vb.net where marks of previous years and preference of subjects of students are recorded. finally according to their preference and available resources at the department, students are granted two subjects for each one for higher studies.In the system we have to get information and output the student detatils and their subject.problem is if administrator would need to add new subject to the project.I have design this only for 5 major subjects and their major2 subject
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Jun 23, 2012
I have been set a project from school to design snake in VB.Net but i am struggling to dynamically add the user control which acts as one of the dots in the body of the snake. Every time i add a dot on to the snake the previous vanishes. I assume this is due to me overwriting the previous one by creating a new instance of the object but i cannot find a way of adding a new one in.[code]I have tried using body(i) and other ways of adding a new instance of the object but am stuck.The subroutine will be called up when a new control is needed.
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Apr 17, 2009
I have an application that i have developed which requires me to run a method in one of the classes on a timely basis. Basically, calling the method at an interval.I can do this if there's only a single object, but the number of objects that i have to create depends on the number of entries in a table. I was wondering if it's possible to add timer control dynamically and make the tick even call objects' methods at an interval.
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Jan 12, 2012
I'm trying to create a program that checks if someone is going to Happy Hour. If not, it lists those who aren't and puts their picture next to their name.I'm able to achieve all but get the images locally and store them in an array (which would be added to pictureArray(i)).(You can see the commented out sections are where I've tried to get the images...)
Public Class Form1
Dim ITLPList() As String = {"Name 1", "Name 2", "Name 3", "Name 4", "Name 5", "Name 6"}
' Dim imageList As New ImageList
' Dim fileSteam As New System.IO.FileStream(sFileName, System.IO.FileMode.Open)
[code]....
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Feb 7, 2009
This will likely be something extremely simple. To simplify things, I have a new VB .NET 2008 Windows Form Application with absolutely no code yet. The only control I have on the form is a stock standard imagelist common control.Using the inbuilt editor for adding images, i've added one single 16x16 jpg image (just to simplify things).
If I build and run the application at this point I get the following error.An error occurred creating the form. See Exception.InnerException for details. The error is: Index was outside the bounds of the array.
I don't expect to see any images at this point when I 'Run' the application. I just need to work out why i'm getting the error. Later on i'll be referencing the imagelist in another control.
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Sep 22, 2010
I was wondering if this is the correct way to do this:
Private Function AddImagetoTextbox(ByVal Tb As System.Windows.Forms.TextBox, ByVal ImageIndex As Integer) As System.Windows.Forms.PictureBox
Dim Pb As New System.Windows.Forms.PictureBox
[Code]....
how to find the cursor's position so as to give the rectangle's X and Y.
EDIT: After debugging I found out that the text is still being written behind it so I m not so sure what to do now..
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