VS 2008 - Unable To Specify Multiple Display Members?
Jul 2, 2010
Using data binding and ado i am controlling a listbox selection (draws from an access database) based upon a combobox selection. Problem is i want to display more than just one column.The code i am currently using specifies the displaymember and value member on form load. However, i cant seem to be able to specify multiple display members.
Heres the code i am using on load.
Bindingsource1.datasource = a_dtBuilding
Listbox1.datasource=Bindingsource1
Listbox1.displaymember = "Building"
Im sure this is easily solved although i have read i should use a listview instead of a listbox for this.
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Mar 2, 2010
I have a Combobox in a Windows form that has a DateTime value as the Display Member and the Room Number as the Value member. When the user makes a selection in the combobox, a textbox is populated with the corresponding room number. There are some instances in the combobox where there are identical Display Member values. When a user selects one of the duplicate values and moves the mouse cursor away from the combobox, the combobox always defaults to the first of the duplicate items.
Example:
Here are the values that are currently populated in the combobox:
Display Member Value Member
02/25/2010 9:00AM 1
02/25/2010 9:00AM 2
If the second listing in the combobox is selected (the item with the value member of 2), and then the user clicks away from the combobox, the value default to Value Member 1.
Is there anyway to keep duplicate display members in a combobox while keeping the proper value member selected?
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Jan 24, 2010
Need to display the Gold, Silver, And Bronze members in a list box from a TXT file. Have problems isolation each group. When I run the program all of the name in the TXT file come into the list box.
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnDisplay.Click
Dim strMembers As String, objStreamReader As System.IO.StreamReader
[Code].....
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Jan 5, 2010
ok this is annoying, i've got a structure RInteger.
Private VAR_Value As Integer
Private VAR_Max As Integer
Private VAR_Min As Integer
[code]......
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Mar 20, 2012
I have a database with the following items of data in.
ItemLocationIDItemIDLocationID
5059533762
51612352401
52593333599
53584331910
54585353653
55613362408
56585371533
57585332865
I want only for ONE Item to be displayed, but both records to be taken out of the database if you see what i mean. Using OLEDB with VS2008. And can't get it to work for me!
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Feb 28, 2012
I am designing a test launch tool that I want the user to be able to select a product type from a list and then choose a station type from another list. Depending on what they choose will determine what is run (what is passed out).
The data will look like the following :
Product Station Test to load Config file to use
10-9890-1 mfgtest1 Progamming.xml config5.conf
10-9890-1 mfgtest2 Configuration.xml config92.conf
[Code].....
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Mar 10, 2009
This might seem like a silly question, even for a newbie but I can't access the members of a class from a user control. I am developing a shopping cart application in vb 2008. inside the app_data folder i have a folder name BusinessObjects which contains a class called Catalog. This is the code for this class:
[Code].....
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Jul 27, 2009
I'm working on small project for my site... basicly we have over 600 memembers.. and every day new member registers as we can keep of track of all the new members we would like to do the following
By CLicking Button Importing members.php list in to our program so we can see all the new members that have registerd
This is good for our modirator so they can keep an eye out on new members
SO basicly
I click button and my program grabs my user list from my website and puts it in my list box ( but program will have to go to page 2 then 3 and so on and so on )
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Apr 18, 2011
I am using the below code to get the local Administrator members, but this code takes about 6-7 seconds to execute. More precisely the "GetObject" takes that long.Is there another way to get the same information but faster?Also, where can I find what other properties the objects holds ? (To see what other useful information I can get)[code]
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Apr 18, 2010
I'm Noob In Vb. I Would Like To Create a Software That Can Detect Invisible Members On Yahoo.But I Have HTML & Javacode How to add Those to Vb And Create a Nice Software
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Apr 23, 2010
I would like to display the multiple records in multiple textboxes Following is my tables and data:
tblJan with these data:
col id
1
2
3
col January
10
20
30
now i want to display the value 10 in one textbox and the value 20 in another textbox and so with the value 30 in another textbox..
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Jan 9, 2012
I have lots of items on a contextmenustrip, I want to be able to use multiple buttons for just 1 contextmenustrip instead of creating loads of menustrips for each button, here is what I want my code to do
Private Sub ToolStripMenuItem10_Click(sender As System.Object, e As System.EventArgs) Handles ToolStripMenuItem10.Click if button1 is selected and pressed an item from contextmenustrip then
Button1.BackgroundImage = My.Resources.Boss_Room
end if
if button2.is selected and pressed an item from contextmenustrip then
Button2.BackgroundImage = My.Resources.Boss_Room
end if
[Code]...
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Jan 29, 2011
I wrote a small VB6 program to monitor the status of a Shared Network Drive. In this case it's an external hard drive. The drive is used for backup. The program is invoked automatically when the computer is booted and runs minimized.
If the backup drive is not turned on or otherwise not functional then the program changes from minimized to a normal window and displays various statistics and a warning that the backup drive isn't working.
I want to make the warning much more prominent, like minimizing the program that happens to be running or displaying the warning window in front of the progrmam that happens to be running. I want something really noticaeble. The computers don't have speakers so I can't play an warning.wav .
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Mar 12, 2011
I have a lot of files in my computer.Here is an example: C:Data3023e4rMarch_20113023e4r_03112011_062334.docC:Data3023e4rMarch_20113023e4r_03142011_092301.docUnder the folder March_2011 has a lot of doc files. The file name string 3023e4r is the serial number,03112011 - the date created,062334- time created.I'm planning to have a text box,where i could enter the serial number. then it will display the files under March_2011.I want the filename string to be displayed in datagridview column with their respective heading(SErial number,date, & time)
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Mar 29, 2009
[URL] The jist of the problem is in fact that in the weka.classifiers.trees namespace you have the following members:
namespace weka.classifiers.trees.j48
and
public class J48 : weka.classifiers.Classifier (Member of weka.classifiers.trees)
Lamentably VB .NET in VS 2008 does not seem to be smart enough to distinguish betweem the two (which is odd, because there is no such problem in VS 2003, or in C# in VS 2008) because of it's lack of case sensitivity. Or possibly because of the fact that ikvmc emits an assembly compiled for the 1.1 run time... I'm not sure. I'm also not quite sure how you would resolve this particular issue and given the time sensitivity of this project I do not have the time to learn C# or Java to an extensive degree.
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Dec 8, 2009
I have somehow written a code to email with VB.Net, but i'm stumbled upon a problem where i am unable to send to multiple users from the email addresses that i have retrieved from the database.
As the code below, the line which is in bold, it throws me an COMException as it states that the "The item has been moved or deleted."[code]...
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Dec 8, 2009
I have somehow written a code to email with VB.Net, but i'm stumbled upon a problem where i am unable to send to multiple users from the email addresses that i have retrieved from the database.As the code below, the line which is in bold, it throws me an COMException as it states that the "The item has been moved or deleted.".
Code:
Public Sub SendEmail()
'DB Connection
conn = New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0; Data Source=C:Documents and SettingsTestDesktopEmailEmailAppEmailList.mdb")
conn.Open()
[code]....
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Sep 3, 2009
how to count the lines in textbox1.text (with multiplelines). I don't need to count each character. I only need to count each line from top to bottom in textbox1.text (multiplelines) and I will use Label1 to display the numbers.
example:
1-pauljaones
2-tommyperrry
3-marktoms
4-Jonessmith
5-paulwhite
Obviously this is 5 lines and that's what I need to count.
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Feb 23, 2011
I can't manage to display unicode characters in VB.NET.I'm doing this in C#:
string myString = "u03A3"; //upper case sigma (sum)
But it doesn't work in VB and I can't find a way to make it work.
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Oct 23, 2011
why i am unable to display datas from database.
If mConnection Is Nothing Then mConnection = New Odbc.OdbcConnection
' check if the connection is already open
If mConnection.State = ConnectionState.Open Then mConnection.Close()
[Code].....
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Jan 7, 2012
I wrote the following program in vb.net. I am reading 2000 data points XY points from csv file into oledb connection and displaying it into the MS cHART but it is displaying only first 500 points...
Dim cn As New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0; Data Source=C:;Extended Properties=""Text;HDR=No;FMT=Delimited""")
Dim da As New OleDbDataAdapter()
Dim ds As New DataSet()
[code]....
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Nov 29, 2009
I'm unable to get the color to display in the colorLabel. I think the problem is in my selector expression. I tried "B", "##[B]##", "##B##"
Option Explicit On
Option Strict On
Option Infer Off
[Code].....
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Jul 14, 2011
I have a VB.NET project in Visual Studio 2008 that I created a specialized addin for. The addin prompts the user to select a database table, takes a template form class's files, copies them to another directory within the project, and renames the form class within the copied files. It then opens the new form and adds controls to it based on the fields in the database table.
The copying of the template form causes the background compiler to give 'duplicate member' errors, such as "Private Sub InitializeComponents(...) has multiple definitions with identical signatures," even though I renamed the files of the new form and the class name within them. Sometimes these errors go away before the new form is opened, but when they stick around the new form doesn't open correctly, and it throws an error instead. I implemented some code to wait until there are zero errors in the error list before trying to open the new form. This has helped sometimes, but for some reason sometimes the errors don't go away at all until the addin is closed.
How to copy the template form and rename the copy without the background compiler ever noticing duplicate members. If that's not possible, then perhaps someone has an alternative?
Here is my code that copies and renames the template form:
Private Sub CreateDataForm(ByVal tableName As String, ByVal displayName As String) ', ByVal subDataForms As IList(Of Object))
Try
Dim dataFormClassName As String = "frm" & MakeValidName(displayName)
Dim dataFormFileName As String = dataFormClassName & cVBSuffix
[CODE].......................
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Aug 2, 2011
Unable to select multiple column in datatable [code]....
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Sep 12, 2010
I am making a checkbook balancer and so far so good. But, I need it to be able to handle multiple deposits or debits. The line for it is below:I need it to first do what is in the first grouping box (deposit or withdraw), and then handle the second, and then the third. Here is the coding for the Apply button:
Private Sub Button1_Click_1(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
[Code]...
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Jan 20, 2011
I am using VB.Net 2010, and when I run the following code, I get System.Data.DataViewManagerListItemTypeDescriptor displaying in the dropdownlist box
cmbProdType.DataSource = ds
cmbProdType.DisplayMember = "ProductType"
cmbProdType.ValueMember = "ProductCode"
When I hover over the datasource, I can see the correct records. But its not displaying in the dropdownlist control.
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Aug 24, 2010
While displaying the .RTF file in rich text box control. It displays all the rtf formatting strings. how to display rich text in rich text box control.
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Dec 17, 2010
So I have a class that I use to filter the results of a datagridview in vb.net. And one of the things I want this class to do, is keep the column order, width, and visibility.
So what I do, is when my search class is instantiated, i create a copy of the columns in a hashtable, for later referencing.
Private dgv As DataGridView
Private dataSet As DataSet
Private bindingSource As New BindingSource
[Code].....
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Dec 8, 2009
The main problem is I couldn't display the result when I retrieve data from database.
1. On Picture 1 above, for the Dg_Details, I set the Columns in two type, textbox and checkbox. But, for the datagridview1, I didn't set anything.So, when I bind data from database to Dg_Details and datagridview1, the datagridview1 display the data from database, but the Dg_Details doesn't display the data. Below is the code I written in my form :
Try
objCommand = Me.MyConnection_F.open.CreateCommand
objCommand.CommandText = "select Reg_Num, Reg, Golf, Course_1, Course_2, Course_3, Course_4, Course_5 from Invoice_Reg where Receipt_No = '00001'"[code].....
I think that's happen because the Dg_Details already set and it blocked the result data from database.
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Sep 26, 2011
I am facing a problem displaying the records of my table on the visual basic form I have created.
This is my code :
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
myconnection = New SqlConnection("server=HOME-PCSQLEXPRESS;uid=sa;pwd=123;database=college")
[Code]....
Note: my database name is "college" , table name is "demo3" . Table contains 2 columns namely name and roll no. How to display the data in those columns on the visual basic form that I have created ?
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