VS 2005 : Key-value Pair In Combobox?
Jan 27, 2011
Normally when I populate a combobox I do so by binding it to a datatable and assigning a display member and value member. I would like to do the same thing by adding pairs of items in code.I tried using a key-value pair, but that didn't work. The combobox displayed both the key and the value. I would like to have it just display one of the values and leave the other one invisible to the user, but available to me as a key.I thought about creating a custom class with two properties - one to use as the display member and the other to use as the value member. But before I re-invent the wheel I thought I'd check to see if there's already something there in the framework that I'm missing.
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Dec 18, 2006
What is the best way to create a key value pair for a filename and filepath with filename.1.Obtain files within a directory for a known suffix (eg. html)2. Set variable to filename only using GetFileName()3dd filename to Listbox, ComboBox, etc.4.When user selects FileName, use value (path and filename c:/xxx/xxx/filename to use as argument for Process.Start(PathFileName)
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
For Each filePath In IO.Directory.GetFiles(path, "*.html",
[code]....
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Jun 18, 2009
The following code checks each sentence in the listbox and if certain conditions are matched it add a piece of data to the list new question. Each input from the user is checked against each sentance in the listbox and if a match is found (based on the conditions) only then the data is added to the list and the loop exits. My problem now is that for each itteration cycle In_dep_token_pair.Key and trigger_dependency_token_pair can not be Subject and DirectObject at the same time. Is there any way to test for the next item in the keyvaluepair within the same itteration cycle? Something like trigger_dependency_token_pair(current item).Key = "Subject" and trigger_dependency_token_pair.key = "DirectObject".
If (Input_pair.Key = predicate) And (In_dep_token_pair.Key = "Subject" And trigger_dependency_token_pair.Key = "Subject") And _
(In_dep_token_pair.Value = trigger_dependency_token_pair.Value) Then
If (In_dep_token_pair.Key = "DirectObject" And trigger_dependency_token_pair.Key = "DirectObject") Then
If (In_dep_token_pair.Value = trigger_dependency_token_pair.Value) Then
[code].....
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Jun 22, 2011
In my VB.NET code behind, I've created a multiple name/value pair cookie like this:
Dim UserCookie As HttpCookie = New HttpCookie("UserInfo")
UserCookie.Values.Add("UserNumber", Me.UserNumber.Text)
UserCookie.Values.Add("Password", Me.Password.Text)
UserCookie.Values.Add("UserName", Me.UserName.ToString)
Response.Cookies.Add(UserCookie)
Now, what I need to do (somehow) is read that 'UserInfo' cookie in javascript and be able to extract those values at will. Most of what I'm finding out there doesn't quite do what I need to do.I'm trying to do something like this:
var MyValue = ReadCookie("UserInfo", "UserName")
And MyValue would equal whatever the user had typed into the textbox.
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Apr 28, 2010
VB2008. I would like to use a Dictionary(Of TKey, Tvalue) where the key is a pair of Integer (and TValue is String, no problem). How can I declare it ? How can I add an item ? How can I retrieve a value, knowing the key ? I can do it when the key is an Integer, but with a pair of Integer I am lost.
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Jun 22, 2011
I need to return json data from the server, which can be used on the client side and I am not sure the best way to format the json data.
So basically, What is the best way to format the json data to include:
key/value pairs so they can be looped through at clientside (loop via jquery), a count of the number of id/value pairs which can be used at clientside for other purposes (used via jquery).
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Mar 1, 2010
I am trying to parse a particular attribute/value pair from XML in VB.NET. The XML is originally a string that looks like XML but it needs to be converted to an XML-like datatype or structure before I can parse it. How can I convert this string into XML, and then parse the info that I need?
[Code]...
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May 17, 2010
I'm using VB.Net's RijndaelManaged (RM) to encrypt files, using the RM.GenerateKey and RM.GenerateIV methods to generate the Key and IV and encrypting the file using the CryptoStream class. I'm planning on saving this Key and IV to a file and want to make sure I'm doing it the right way. I am combining the IV+Key, and encrypting that with my RSA Public key and writing it out to a file. Then, to decrypt I use the RSA Private key on this file to get the IV+Key, split them up and set RM.Key and RM.IV to these values and run the decryptor.
Is this the best method to accomplish this, or is there a preferred method for saving the IV & Key?
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Mar 25, 2012
I have lots of TV Shows on my Hard Disk and every week I update that HD with the new episodes that have aired (I also download the .srt - subtitles - files) .
To do this, i have to take each pair of file (the .mp4 and .srt files) and put them in the HD folder (Ex: E:Tv ShowsDr HouseSeason 8). I have to do this lots of times and I waste several time to do this..
So, I was thinking, why not making a VS application to do this job?
I select all my .mp4 and .srt files from the week (witch are contained in a folder) and i drag them into my application witch should check the names of the files (they both have the same nome, Ex: House.S01E01.mp4 and House.S01E01.srt) and, by the first name ("House") search a hard drive witch I choose, and move my selected files to the "House" folder (where I have all the seasons of the Tv Show).
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Jan 14, 2011
I'm trying to modify an app.config file that is not part of my .net application.My key needs to be unique and appear under a static key (Server1 or Server2) as the other application reads these values line by line, associating the database(n) value with the server(n) value.I cannot see a method of using the standard app.config methods against an external .config file, so I'm using the Xml Document class.[code]But cannot find a method of retriving the Key to check if it exists and more importantly increment the value?
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Jun 27, 2009
I am looking for a way to store a key-value pair in the application settings. From what I have found, key-value pair dictionaries are not serializable, and therefore cannot be stored in the application settings.Currently I have tried all sorts of dictionaries and collections and all of them work, until I restart the application, then all the settings are gone.
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May 24, 2010
Needs to be a component of some sort. No additional installation needed.The datastore needs to be on the local hard drive.I am using VB.Net for a desktop app running Windows XP through 7 so it needs to callable by that environment.It needs to replicatable. If I have four copies of my app running on the network, each local copy of the datastore needs to replicate with the others. As close to real time as possible.
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Mar 13, 2012
I remember reading once that .NET had a built in configSection handler that could handle a collection of key/value pairs without having to code my own custom classes. Similar to appSettings, but I can name the containing tag my own name and just start listing key/value pairs.Anyone know if this exists and what it is called?
Example:
<configuration>
<configSections>
[code].....
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Apr 11, 2010
How to find a matching pair of values in two different arrays? Here's the scenario:
Index Array1 Array2
0 1 3
1 2 5
[code].....
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Jul 23, 2009
I'm trying to obtain name/value pair of enumeration typed into text box with LINQ. It's OK with name, but when LINQ reaches values, it throws error: "Conversion from string "Black" to type 'Integer' is not valid". I have read that if I want to obtain a value, then I gotta use conversion function.
Here's code (button's Click event):
Private Sub GetEnums(ByVal sender As Object, ByVal e As RoutedEventArgs)
lstEnums.Items.Clear()
Dim typeName = Type.GetType(txtEnum.Text)
Dim enums = From en In typeName.GetEnumNames
[code].....
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Aug 11, 2009
how to add multiple text to a point pair list in Zedgraph. Add text to one point pair can be done like this:
Dim myPane As GraphPane = zg1.GraphPane
Dim TextObj As New ZedGraph.TextObj("High", 10, 10, CoordType.AxisXYScale, AlignH.Center, AlignV.Center)
[Code]....
Theres a problem with the code above when the graph scrolls the text is following as it should, but it's also visible in the pane background.
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May 4, 2012
I'm trying to figure out what the best method is for attaching a single key/value pair attribute to an enumeration where the key is my MerchantId and the value is the corresponding TransactionKey. What I currently do is put a comma delimited string into a StringValueAttribute class:
Public Enum Merchants
<StringValue("coke,faj80785hq+faf=-1=-jfa+">
Coke = 0
<StringValue("pepsi,adfji=-901jnas++fdj98ua")>
Pepsi = 1
<StringValue("drpepper,jk878-=+9kdkdja0=a=f--daj")>
DrPepper = 2
[Code]...
Is this the most efficient way to do this? Instead of StringValueAttribute, what about creating an attribute using a Dictionary(Of String, String) since it is a key/value pair list? Or String Array or List? Maybe something in LINQ?
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Apr 24, 2010
Is there such a thing as a type similar to a point, but contains a pair of decimals, or a pair of doubles, rather than integers? I searched the forums and google with no luck. I can't believe this has never come up before, I must have been using the wrong search terms.
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Nov 25, 2009
I am filling a ComboBox with values from a data base table where user can select a value:
[Code]...
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Apr 27, 2009
I have the following code to fill my combobox:
Public Sub VulCboGebruiker()
dt.Columns.Add("Gebruiker")
dt.Columns.Add("Gebruiker ID")
dt.LoadDataRow(New Object() {"Ja", "1"}, True)
[Code]...
What do I have to add so the the combobox is set to intGebruikerApplicatie wich refers to the dataColumn "gebruiker ID" ?
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Sep 18, 2009
i tried this Private Sub ComboBox2_SelectedValueChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles ComboBox2.SelectedValueChanged
[Code]...
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Aug 6, 2009
i have a listview in form1 and combobox in form2..i want add every first item of listview of form1 into combobox of secondform....i did this...
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May 21, 2009
i have a combobox all names are displayed i want to search by first letter..if i type n in combobox then names starting from n should be displayed in that combobox...how can i do that?i have my code to display all names from database.
[Code]...
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Jan 16, 2011
I have a ComboBox that i am wanting to add all the SQL Server 2005 instance names to. The instances are located in the registry under:
HKEY_LOCAL_MACHINESOFTWAREMicrosoftMicrosoft SQL ServerInstance Names
I have tried to do this and I am not able to get it working. I haven't worked with the registry in a very long time.
This is what I currently have:
vb
'Enumerate the registry and add all SQL Server instances to cboServerName.
'HKEY_LOCAL_MACHINESOFTWAREMicrosoftMicrosoft SQL ServerInstance NamesSQL
Dim SQLInstanceRootKey As RegistryKey = _
[Code].....
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Jan 10, 2011
I have a ComboBox on my form and I am trying to create a SuggestAppend for AutoComplete as the end user types. However, I am getting an ArgumentOutOfRangeException when I press the first letter. Then System.Data.DataRowView automatically populates the ComboBox. [Code]
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Jun 16, 2009
I want my combobox when I type letter all item has the letter I have type will show in the combobox.... because in the current situation in vb .net when I type "A" all item that start from a will display I want this time when i a letter "A" all those have the letter "A" will display..
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Aug 10, 2010
I am trying to bind my combobox selected value something like:
Me.combobox1.SelectedValue = Me.BindingSource8.Item("ColumnName")
The column has a numerical value
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Jan 29, 2011
I'm having a problem setting the SelectedIndex property of two comboboxes.
There names are,
LateralStartComboBox
LateralEndComboBox
When I run the code listed below, both of the comboboxes display list item number 6. No matter how I try to set the selectedindex their text matches. [Code]
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Jun 29, 2009
I have an application which consists of labels, textbox, combobox and buttons. The combobox and buttons loads after the contents of an Excel file is loaded into the application.However if the form is resized before the loading, the position of the combobox and the buttons changes even though all the controls are locked. The position of the labels and textboxs remains the same. Can anyone figure out any reason for this anomaly?
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Jul 31, 2010
I have been searching for a while and not able to find anything useful on how to approach this issue.I have a ComboBox on a form and what I am looking to do is when the ComboBox has the cursor focus, it automatically opens up and displays the options. Just as if you clicked on the ComboBox. I was considering PerformClick but the only problem is, I believe PerformClick is only available for the Button and no other control.
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