ASP.NET VB Nested Listviews
Mar 29, 2011
I have an outer listview and inside its itemtemplate an inner listview. Each has its own SQLDataSource. A Id field from the outerlistview works as a select parameter for the second listview.
When stepping through with the debugger it works perfectly, unfortunately the rendered page only contains data from the outer listview. It appears the databinding of the outer listview fires and renders the page (including the inner listview) before the codebehind can provide a where parameter to the second listview. The aspx page is below.
[Code]....
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May 14, 2011
I currently have a parent Listview and its child Listview displaying in the centre column of an HTML page that consists of three columns left, centre and right. And all looks very good. However I would like to display the child list view in the right column beside the parent list view.
To do this it seems I must somehow generate from the code behind page a new row in the table every time the parent Listview displays a record of its data and then some column HTML so the first child list view will appear in the right hand column.
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Sep 24, 2010
so far i got
code
For Each item As Reflection.FieldInfo In GetType(NameSpace.ClassWithNestedClasses).GetFields
rtfAppend(item.Name & ":" & Tab & item.GetValue(Me))
Next
For Each item As Reflection.PropertyInfo In GetType(NameSpace.ClassWithNestedClasses).GetProperties()
[code]...
which gets me the simple string vars and properties of my top class, but how can i apply this to loop through all sub classes and get there vars and props?
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Jun 5, 2011
How can i compare a subitem from my listview1 to my listview2 subitem, like for ex. subitem(3)?
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Jul 7, 2011
I am currently making an application manager program that allows users to create application shortcuts which are represented as ListViewItems. One feature that my testers keep suggesting is way to drag a normal desktop shortcut into my application, thus avoiding having to recreate lots of application shortcuts.I am pretty clueless as to how to accomplish this, if it is even possible. However, if it can be done, the information i need to extract from the shortcuts are: The name of the shortcut, The associated icon location/file, A description of the program (if there is one), and the executable file location.Also, in the same boat as shortcut drag and drop, just not as difficult- I also am wondering how i could drag and drop ListViewItems into different orders and/or groups.
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Jun 6, 2011
I have two listviews that uses drag and drop to pass values, however I can only pass the value of my first column. What I need is to pass the value of my two columns.
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Dec 6, 2009
I don't know what triggered it, but one moment it was fine, other moment it just went like this.
Now if I click the body of a textbox, the window behind the application form gets selected..
What can be the reason?
Here's a screenshot -
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May 17, 2010
how to read from the first column but I need to read from both of them. I am using full row select which I need on there.Here is the code I am using to get it for the first column.
Dim I As Integer
For I = 0 To ListView1.SelectedItems.Count - 1
MsgBox(ListView1.SelectedItems(I).Text)
Next
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Jun 21, 2010
[Code]...
i have 2 listviews in which folder and files are loaded. i'm trying to make a function that, when "Copy" button is pressed copies files/ folders between listviews (between folders "ex: from "D:path" to "E:pathsubpath"). the codes of file copy and folder copy both work but not if add the file.exists / folder.exists lines. if i put a msgbox instead of the filecopy/ foldercopy it displays "file exists" or "folder exist" etc. .. but if add the file copy / folder copy line doens't do nothing.
[Code]...
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Jul 24, 2005
I desided to follow the basic instructions cearfully. I have managed to find my way through the database programming using the odbc class.And I was successfully able to populate records from the database to listviews, treeviews, comboboxs and all sort of controls.Now I am working on phase 2 of my project whitch is writing back to database.... but unfortanilty I did not find a good illustration of how to do that using odbc data adapters.I am trying to send data from textboxs an listviews..
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Jun 16, 2009
I am trying to add an unicode character like this one to lets say listview item. I load character from file to string and from string i create a listview item with text same as string () all I get is charater like box.. interesting is that when I copy that character to program supporting unicode I get original char back ().. I tried everything. Searched a lot on internet and forums.. Question bothers me since yesterday, and my project can not continue without unicode support in basic form controls such as textbox.
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Nov 17, 2010
I found and am using this code to move items from listview1 to listview2.Private Sub ListView1_ItemDrag(ByVal sender As Object, ByVal e As System.Windows.Forms.ItemDragEventArgs) Handles ListView1.ItemDrag, ListView1.ItemDrag Dim myItem As ListViewItem
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I am planning on having 12 - 14 listviews on my form.Do I have to copy the above code and name each source and destination listview for all combinations that I want to drag to and from? Or, is there code that will 'read' the source listview1 name when clicking an item from the list and 'read' the listview2 name when the cursor is on the listview I am dropping the item into.Been searching but probably not using correct terms.
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May 22, 2012
I built a form that has 3 Listview objects. Each Listview contains items, the user is to select an item from a Listview and click a button that moves the item "up" or "down" to an adjacent Listview.I am having a difficult time "knowing" which Listview item has been selected. The problem arises once a user has clicked items from different Listviews. Even though, visually, only one item is selected in one Listview, the program still detects a selection from other Listviews.
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Sep 1, 2009
Im trying to tackel a forever complicated process of comparing listviews
Imagine two listviews (listview1 & listview2) both have 4 colums.
On clicking a command button i want it to go through colum 3 of each row on both listviews ( one and two ) and see if they match, if they dont, do a msgbox of the text of colum 3 of that rows text in listview2.
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Mar 19, 2011
How do i apply sub items to colums in listviews in visual basic 2010, so there under the collumn name and look smart The Second one is How do i program functions for when 1 of the subitems are clicked?
[Code]...
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Mar 27, 2010
I'm new to VB 2008 and was wondering how to apply 2 toned back color to my datagridview column headers or listviews. Where the color is lighter at the top of the column header and then becomes darker towards the bottom of the column header. It seems most apps use them these days.
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Nov 23, 2009
Im trying to effectively, Save a listviews items to A database (after clearing it) then load it all back in to the listbox, would this do it? becuase it just doubles what ever is in the listbox @ the time,
Dim ConnStr As String = "Provider = Microsoft.Jet.OLEDB.4.0; Data Source = " + System.Windows.Forms.Application.StartupPath + "data.mdb"
Dim DT As New DataTable()
Dim SQLStr As String = "DELETE * FROM [keys]"
[code]....
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Jan 16, 2012
I have an ArgumentException was unhandled message: Cannot add or insert the item '1' in more than one place. You must first remove it from its current location or close it. Parameter name item. Note: Have 2 listboxes 4 textboxes double click listbox2 and it fills in the four texboxes (now it needs to put it back into listbox2 in the same place it came from but crashes. I marked the area and underlined where the error message was coming up. So double click a selection in listview2 (fills 4 textboxes) then double click textbox2 (should return text data back to listview2 in same spot) but crashes. See code below.
[Code]...
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Mar 4, 2009
I am using nested datalists to display hierarchical data. In the nested datalist i want to be able to bind to a property that belongs to the object that the parent datalist is bound to.
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Mar 15, 2011
how do i get out of nested for or loop in vb.net?
I tried using exit for but it jumped or breaked only one for loop only.
how can i make it for the following:
for each item in itemList
for each item1 in itemList1
if item1.text = "bla bla bla" then
[Code].....
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Apr 2, 2009
I have an XML file which is a multitable nested xml file (.Tables.Count returned 12 tables). I would like to have all of the xml contents in one table or, if not, select different columns from these different tables (that are stored in XML) and put them in one table. As I understood Datagridview only allows only one table at a time. Is there any way to create a new datatable by joining exsting tables from XML?
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Mar 8, 2010
I have been trying to read the cd toc in one go from the API, I can read it OK with a single byte array, but I can't find a way to fill the formatted arrays
Code:
'ORIGINAL STRUCTS
'MAXIMUM_NUMBER_TRACKS = 99
'typedef struct _CDROM_TOC {
' UCHAR Length[2];
[code].....
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Jul 7, 2009
I've a large table of Items and I need to organize them by Category, then by Year and then by Month.Item has CategoryID and Dated properties.I got this far:
Dim Items = From Item In DB.Items _
Group By CategoryID = Item.CategoryID _
Into Categories = Group _
Order By CategoryID
But where I put the:
Group By Year = Year(Item.Dated)
and the
Group By Month = Month(Item.Dated)
The final result should be something like this:
For Each Category in Categories
For Each Year in Category.Years
[code].....
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Jan 9, 2011
How would I declare a nested function in VB.NET? For example, I want to do something like this:
Function one()
Function two()
End Function
[code].....
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Jul 18, 2012
I am new to this forum so please be patient with me :-) My problem is how to bring a nested XML structure into a single DataGridView. The XML looks like this:
[Code]...
All I would like to do is populating a DataGridView with 4 columns (Name, Age, Language and Artwork). Each of which containing its appropriate value whereas the latter will contain all pictures... See what I mean?
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Apr 3, 2012
I'm working with a database that includes a table called MenuItems. The table is hierarchical, so an item can have child items under it. A record's ParentID corresponds to the ID of the parent record, or the ParentID can be 0 if the item is on the top level.What I'm trying to do is create a VB.Net application to populate a TreeView with the records in my MenuItems table, using the recursive function ListSubMenus in the code below:
Code:
Private Sub ListSubMenus(ByVal ptvnParent As TreeNode, ByVal plngParentID As Long)
Dim strSQL As String
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Oct 17, 2010
I can't seem to find a lot on how to use events in nested objects. I suspect that I should have access to the events in the nested objects through intellisense if I had done things right. I have many objects with 50 or so properties and I would like to access them with out adding handlers for each one and additional events in parent objects.
Example:
Public Class Form1
Dim WithEvents myCombinedClass As New CombinedClass
[code]....
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Nov 6, 2009
I am constructing some XML using XML literals. I have a function which returns an XElement.
Function RootElementFormattingFunction() as XElement
Return <Root Data="foo"/>
End Function
In reality it is a bit more complicated than that, but it is called from several places. Now I have linq sequence which generates a set of nodes which I want to make children of the XElement returns
[Code]...
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Jul 12, 2011
I am trying to add some items to a TreeView Control:
TV1.Nodes.Add("key1", "Test1") 'Works
TV1.Nodes("key1").Nodes.Add("key2", "Test2") 'Works (Nested)
TV1.Nodes("key2").Nodes.Add("key3", "Test3") 'Error (NullReferenceException)
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Feb 29, 2012
I am working on a project that requires that I use nested case blocks. However, I am not quite sure what this looks like. And for whatever reason I'm having a hell of a time trying to find the answer through google. Are nested case blocks like nested if blocks? Or are they something completely different? More information on the project can be given if needed.
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