Read Second Column From Listview Control In Detail Mode?
Sep 24, 2011
I've attached a picture of the list view control that I am using. I've been fine until now, I want to save the entire line of items in the list view control (item_description, price) and dump it into the MySQL database to allow tracking of reciepts. The following code that I have saves the first column worth of information, but I cant figure out a way to save the second column (the price)
Dim li As ListViewItem
For Each li In ListView1.Items
CurItems = CurItems.ToString + li.Text + ", "
Next
Oh right, and I'm making it comma seperated values so I can pull it up in a readable format again.
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Feb 10, 2010
I have been trying to create a listview in detail mode which has 2 images (a light is on and one with the light off which represents a boolean value) I have gotten some code which populates the Listview during runtime but i have tried various ways to get the images into this without any success, google has been particularly useless and most examples seem to involve creating an array for each row(great if you have all the data in the first place, my project will perform like a log, it will show an Id, a Name and then 2 colums which should have on/off icons in them.
This is my sample code which works by creating a ListViewItem, adding the items for the row and then adding it. When i did this on my project however it showed nothing in the view (presume i need to refresh it after each add?)
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, _
ByVal e As System.EventArgs) Handles MyBase.Load
[Code].....
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Mar 3, 2011
I have 5 columns and the rows are not dependent on each other. I just want to add items to each column. How can I do this? For example, I want to do:
listview1.column(0).add("add something to column 1")
listview1.column(1).add("add something to column 2")
etc
But it's not letting me do this?
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Jul 8, 2009
I have added three columns to the ListView control,
listView1.Columns.Add("id", listView1.Width / 3); listView1.Columns.Add("Name", listView1.Width / 3); listView1.Columns.Add("Address", listView1.Width / 3);
Assume the ListView1.Width is "30", then each column should be in event width of 10. Furthermore thereshould only be three columns becuase i have added only three columns. However, when i resize teh form, the listview controls shows an additional column.
How this was added? How do i fix this, so that when i add 3 columns it will have only three columns even when resized the form or not
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Jun 18, 2008
I would like to read text from another programs listview control. I have searched over 3x forums for this and cant find any working examples and especially no working VB.NET examples.I know that i have to use the command 'LVM_GETITEMTEXT' with the API Sendmessage but i have no idea how to issue the command and need a working example to go from.
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Jun 14, 2011
I have a listview set on 'Details' and its full of data. There's about 6-7 columns. I want to export certain rows if they are green and exclude the rest.
[Code]...
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Feb 16, 2010
I have seen listview controls before that do not show any type of ID. (ie: Items in an order). So when I delete this row, how does it know which row to delete in my database? There could be many rows with the same exact data but each belonging to a different order. Would there be a hidden column with the record ID in it? If it is a hidden column, how would I go about this?
I've used this method for returning id's for ComboBox's and Listbox's:[URL]
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Apr 27, 2012
I want to make the text in column of ListView control to be 2 lines. So I use the codes below to test. The result is bad. The "vbcrlf" in str2 doesnot work at all. Dim str1 As String = "Job Number12345" Dim str2 As String = "Job Number" + vbCrLf + "12345" ListView1.Columns.Add(str1, 100, HorizontalAlignment.Center) ListView1.Columns.Add(str2, 100, HorizontalAlignment.Center)
[Code]...
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Feb 14, 2012
I have a listview control that I have a multitude of files displayed, in addition there are 6 columns in the listview that shows information about the file in question.
I have gotten this far, but my question is this: how do I allow the user to sort the listview by clicking on the column headers. Like one can do in list view in a Windows window?
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Sep 16, 2010
What is the real mode , protected mode , supervisor mode and the hypervisor mode ?
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Sep 11, 2009
I am currently in the proccess of making a calculator, i have added all the functions i want, (+, x, / and - plus = obviously), but the problem is, i cannot do something like, "4+5x2", I can do "4+5" but i cant make 1 function mix with the others.
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Mar 6, 2010
I have a process that is a detail/Master issue. I read (into a dataset) my detail record based on several keys. Then I have to read each master record..check some fields/update some fields and then update that master. Detail is not changed. First.. How do I not lock the detail table during my select?
[Code]...
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Nov 12, 2011
I use a simple master-detail form using Visual basic 2005 express edition and ms sql server 2005 express edition, as well.
The master table is dept (deptno int, dname nvarchar(50)) .
The deail table is emp (empno int, deptno int, ename nvarchar(50)).
The primary key for the dept table is deptno and for the emp table is empno.
There is also a foreign key (deptno on emp table).
I created a new project, connected to a db (called test.mdf) and created a data source consisting the two of the above reffered tables.
I dragged and dropped these tables on the form and i noticed the following:
1)When the form opens... the system queries the database and displays the data on each block on the form.
2)I insert and/or update a record on the master table (dept) and everything goes well...
3)I try to insert and/or update a record on the detail table (emp) and nothing is changed on the detail table - without any error.
4)When i try to insert and/or update a record on the detail table (emp) which violates the primary key constraint or foreign key the system complaints...(as expected).
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Jul 13, 2010
I have made several posts on here lately regarding master/detail or parent/child data setups but no one has been able to help. It seems like a subject people don't like to tackle BUT I really need help.
I'm having a real hard with the DataView.RowFilter functionality and it is driving me insane.
For the most part, I have the basic master/detail functionality working. When you select a record in the first grid, it shows the correct data in the second grid. When you enter a record in the first grid, you can enter related data in the second grid. I accomplish this by using a dataview and row filter bound to the 2nd grid. When you change the record in the first grid, the rowfilter for the 2nd grid is restated and reapplied.
The problem arises when I overwrite the primary field value in the first grid and the detail records become orphaned. You would think all I have to do is change the ID in the 2nd grid to match the new ID in the 1st grid but this is where I am having problems. I wrote a loop to change the ID of each record currently loaded in the 2nd grid to match the newly changed ID in the first grid. The code is here:
Code:
Dim I As Integer
For I = AuthorizationGroupsDGV.Rows.Count - 2 To 0 Step -1
AuthorizationGroupsDGV.Rows(I).Cells(0).Value = StrEmployeeID
Next
I have used this code before and it works great. It has to step backwards through the grid because when the ID's are changed, they no longer match the RowFilter criteria and they disappear from the grid. They still exist in the dataset. The problem is, while the code "works" the intended effect does not. Some of the records completely disappear from the dataset and do not reload when I restate the row filter against the new ID number.
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Aug 2, 2009
There are a lot of master/detail databinding examples with detail form on the same window than the master, I can't find any example where detail is in a new window.
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Jul 27, 2010
I'm looking for such control in order to represent a hierarchical list that I can sort separately each set of master (parents) and his details.url...I think that such a control does not provided in .NET..Do you know for a good 3rd-party for such purpose?
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Sep 15, 2009
Is it feasible to do master detail in textbox control? If I do it with datagridview control, I have no problem. However, when I tried to use textbox control, I had running error. I have googled it for a month and don't see anybody dealing with this questions so hope somebody can give me a definite answer. Maybe it's not possible to use textbox control at all.
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Jan 16, 2012
I have a detail view control in my aspx form. I have the following field in my detail view:
NameId
Name
ContactNo
But I dont want to allow the user to edit the "NameId" field. So I set it as read only and Insert Visible. But setting it dosen't allow me to update. If all the fields are set to be allow for editing, the update work successfully. How should I go about doing it?
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Jun 30, 2010
I have a UserControl that contains other controls that I would like to be able to rearrange or resize at design time. So I have a custom designer for the UserControl that inherits from System.Windows.Forms.Design.ParentControlDesigner, and I call EnableDesignMode on the child controls from within the designer. That way, at design time, I can drag and drop the child controls to move them, or resize them. But I can also drag and drop the child controls somewhere else on the form that is outside of the original UserControl. Is there a way I can limit the child controls from being moved or resized outside the UserControl?
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Oct 4, 2011
I am trying to owner drawing a list view in Tile View Mode. I am creating Items and add them in the ListView_DrawItem Event, but ListView_DrawSubItem is not firing.
I have been searching internet regarding this issue but I could not found anything relevant, the only thing I found was to call the DrawSubItem method.
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Mar 4, 2011
I see, to my supprise, when I tried to installed the Access Database Engine drivers that you cannot run both 32 bit and 64 on the same machine (I have Office 64 bit installed). If SQL can do it? So I have this nice new 64 bit machine with 64 bit office and my hands are tied... Can't correct code in 64 bit mode, can't read Access databases in 32 bit mode. I just have a hard time with 64 bit being out since XP, that this it just not fixed yet. Humm the Behemoth that is now Microsoft. Want to use OLEDB?
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Sep 2, 2011
I am trying to make a listview custom control based on the standard listview control that will allow me to drag a column header outside the standard listview control and drop it on a panel. I plan to use the drop event to determine which column I should group by view on.
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May 14, 2011
Using fs As New FileStream("C: estsomefilename.ext", FileMode.Open)Using rdr As New BinaryReader(fs) fs.Seek(225, SeekOrigin.Begin)Dim b() As Byte = rdr.ReadBytes(32)Dim s As String = Encoding.UTF8.GetString(b)
End Using
End Using
End Sub
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May 1, 2011
i trying to seek 78 from beginning and get the int32 in binary mode..
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Sep 4, 2011
i need to use virtual mode in a listview to load data from a table...what to add in the retrievevirtualitem event... i have a data bindingsource which is attached to the table..
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Jul 4, 2011
I have been trying to find out how to resize listview column width to the largest widthor either column header or item in c#
[URL]
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Sep 12, 2011
I have a listview and i want to make one column's font smaller than the other column to fit form design. How will i do that?
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May 15, 2010
How do I show textbox column of a datagridview in multiline format using vb.net?
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Aug 13, 2009
I'm using VB.net 2005. I want to open a Word doc from either the VB app. It can either shown on the form or in Word itself. Either way is fine. I tried using the WebBrowser control method, but it had the annoying "Open or Save" dialog that pops up and I don't want the users to get that. So now I am trying by opening up Word uses the sample code I found below. The problem is I want the users to ONLY be able to READ the doc. No Editing, Printing, or Saving. How Do I remove the Menubars, tool bars, and anything else that would allow them to print or save. Even if they tried to edit it would then do them no good without print or save.
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
' Opens up doc in Word
Dim file_name As String
[code]....
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Oct 30, 2009
i want to read/write to some files.Specifically my application searches text files but i also want it to search binary files. The problem is : how will i know when the file is binary and not text ? Also how will i get the hexademical contents of a binary file ?[URL]
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