Update Values In A Dictionary With New Fields Obtained From Wmi Query?
Jan 20, 2012I still can't assign the process the username of the session id that is associated with it.[code]...
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Update Values Of Objects In A Dictionary?
May 12, 2011I add objects (structure type) to a dictionary with string keys.
i don't figure out how to update a value of a object.
i use TryGetValue to get a reference to a object of the dictionary collection.
But the changes i made at the referenced object are not made at the object at the dictionary.
Any hints how to get a object reference to change values without to re-add the complete object?[code]...
Number Of Query Values And Destination Fields Are Not Same
May 9, 2011I am getting the above error in my code. I've searched the net (on this site and others) for a solution to this problem and it seems that its either something to do with a field name being a reserved name ie. Date, Time etc.... or its missing (') or (") in the SQL command. ive tried both these solutions to no avail.
Dim objDataAdapter As New OleDbDataAdapter
Dim objDataSet As New DataSet
Dim objDataReader As OleDbDataReader
Dim i As Integer
Dim SQLstr As String
[Code] .....
Why Are Number Of Query Values And Destination Fields Not The Same
Feb 6, 2011here is my code. dont seem to know whats the problem. i have 12 data fields in access excluding the ID field.
Dim strCon As String = "Provider=Microsoft.jet.oledb.4.0;data source=C:UsersdexterDocumentsdesktopcsci14databaseMuseum-final.mdb"
Dim dSet As New DataSet
[Code].....
Parsing Text Fields As Date In Update Query?
Apr 22, 2009I've been running into some errors with converting strings to dates in the following code. I have recently added the intcall.Value = DateTime.Parse(txtIntCallDate.Text) function which had gotten rid of the error message, however the records are not being updated, any of them on the form. Prior to this the strings were being updated just fine. As long as there is a date entered on the form there is no error, if it's left blank i get the "Problem converting string to datetime"
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Error - Number Of Query Values And Destination Fields Are Not The Same
Dec 12, 2011i am making a simple testing application within visual studio 2010, thought im gonna be direct. in ms.acces i made a database with a few tables, this one is about the table : leden. the error indicates that i simply do not have enough values to insert into the table and i think it has to do with the ID(autincrement in acces)
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Error Number Of Query Values And Destination Fields Are Not The Same?
Jul 29, 2011Private Sub ButtonSave_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ButtonSave.Click
If frUpdate = False Then
[code].....
Different SHA1 Hash Values Obtained From PHP?
Sep 7, 2011I have some problems with the SHA1 hash value of a string. I'm trying to send a file from a client written in VB.net to a server written in PHP. My problem is that when I pass the same string to VB.net and PHP, the SHA1 value calculated by VB.net is completely different from the value calculated by PHP.
For example, I want to encode a string in Base64 and then calculate the SHA1 Hash of the Base64 string. When the computer executes this task from the vb.net version and from the PHP version I get two different SHA1 values, even if apparently the Base64 encoded string is the same:
VB.net: 2E97A53B09C482A831540B532845BCAC79BFACCF
PHP: 350A2080264E2724D4BCBC521C35264D264A1DAF
I'm surely missing something, could you point me in the right direction and tell me what I'm doing wrong here?
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Put Spaces Between Listbox Values Obtained From Database?
Mar 28, 2012This is my coding for displaying access database values to listbox. It is working but it displays the values without a space like this: (The columns are: ID, NName, gender, age)[code]....
View 6 RepliesUse Linq ToDictionary To Return A Dictionary With Multiple Values In The Dictionary Items?
Jan 25, 2010I want to group items from a linq query under a header, so that for each header I have a list of objects that match the header title. I assumed the solution would be to use ToDictionary to convert the objects, but this allows only one object per "group" (or dictionary key). I assumed I could create the dictionary of type (String, List Of()), but I can't figure out how to write it. As an example I have written a simplified version below.
[Code]...
Flatten A Dictionary Of Dictionaries And Sum The Values Of The Inner Dictionary With LINQ?
Apr 16, 2012I have the following object:
countDictionary As Dictionary(of Category, Dictionary(of Date, Integer))
The Class has a Enumeration Property. For the purposes of demonstration, I'll call it MasterCategory.I have been trying to get out an object that looks like the following:
groupedCountDictionary As Dictionary(of MasterCategory, Dictionary(of Date, Integer)
The best result I could get was:
Lookup(of MasterCategory, Dictionary(of Date, Integer))
From:
countDictionary.ToLookup(Function(o) o.Key.MasterCategory, Function(o) o.Value)
Which results in a IEnumerable (Of Dictionary(of Date, Integer)) for each MasterCategory value.However, I need that IEnumerable of Dictionary flattened to one dictionary with all the integers summed (total counts) for each date. I then tried to use various selects and group bys (from numerous stackoverflow posts) to "flatten" it, but my efforts have fallen short.
Current Code
[Category Class]
- MasterCategory As Enum
- Name As String etc
[code]....
.net - Update 2 Table Values In One Query In LINQ?
Apr 26, 2010I have 2 tables Table1 with columns [BId,Name,Amount] Table2 with columns [CId,BId, ExpenseType,Expense]. BId Is the foreign key in Table2. The Amount field in Table1 is always higher than Expense in Table2. I need to update the values of Amount (increase or decrease) based on value of Expense and I want to do it in single query in LINQ. Eg If the Expense has to be updated with 200, I would decrease(negate) Amount value with 200. If Expense is reduce to 100 then the Amount is increased by a value of 100.
View 1 Replies.net - Sum Integer Value Fields Of A Dictionary
Jan 6, 2012In .net 4.0 dictionary I know I can calculate the sum of all integer value field like this:
[Code]....
Does exist a more elegant way to do calculate the sum?
How To Query Dictionary(OF T , T) By LINQ
Mar 31, 2010In My Code i am using Dictionary(Of String , String) As Key Value Pair ..While i am using LINQ to Query this Dictionary, It Shows Dictionary is not Queryable.
View 1 RepliesLINQ Query On A Dictionary?
May 23, 2012This should be extremely simple but I'm still new to the language and don't grasp the basics yet.
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VB And LINQ Query On A Dictionary
May 23, 2012I need a simple LINQ query on VB.NET on the dictionary [Code] What I need here is to retrieve a SINGLE website (dictionary value of string type) or NOTHING (if the query cannot find an affordable result) given those rules: The dictionary key (integer) must be greater than startSite and not equal to mainSite or returnSite (both must be excluded from the result) Any hint? [Code]
View 2 RepliesGet All Dictionary Values?
Dec 6, 2010It is possible to output all the dictionary values to a textbox? Not the keys, just the values of all the keys.
View 5 RepliesSql - Update Statment Using .net To Update All Fields?
Mar 23, 2012I create table using sql developer
create table tablenodes
(
nodeNo int ,
nodeName varchar2(50),
centerX int ,
centerY int,
][Code]...
I have a problem in updating statements, can't write it correctly, every time I try to edit it, gives me different error (ora-01036 illegal variable name/number, missing expression, invalid identifier).
How To Find Values In Dictionary
Feb 22, 2012I have this dictoinary:
Dim chardict As Dictionary(Of Char, Integer) = Nothing
chardict.Add("A", 0)
chardict.Add("B", 1)
I wanted to do the following if statement but I am a bit stuck on the syntax:
if chardict.containskey("A")
'display the value that corrosponds to the letter "A"
'in this case display the character 0
[some code]
end if
Linq Query On Dictionary<TKey, TValue> Working As DataSource?
Dec 21, 2010I have the following in VB:
Dim sources = From source In importSources Select New With _
{.Type = source.Key, .Source = source.Value.Name}
dgridSourceFiles.DataSource = sources
[code]....
Add Keys/values To Dictionary At Declaration?
Sep 22, 2010Very easy today, I think. In C#, its:
Dictionary<String, String> dict = new Dictionary<string, string>() { { "", "" } };
But in vb, the following doesn't work.
Public dict As Dictionary(Of String, String) = New Dictionary(Of String, String) (("",""))
I'm pretty sure there's a way to add them at declaration, but I'm not sure how. And yes, I want to add them at declaration, not any other time. :)
I've also tried:
Public dict As Dictionary(Of String, String) = New Dictionary(Of String, String) ({"",""})
And...
Public dict As Dictionary(Of String, String) = New Dictionary(Of String, String) {("","")}
And...
Public dict As Dictionary(Of String, String) = New Dictionary(Of String, String) {{"",""}}
Fetch Values From Dictionary Object?
Mar 11, 2011I have a dictionary of type:
Dim parentDictionary As Dictionary(int,Dictionary(string,string)).
Dim childDictionary As Dictionary(string,string).
parentDictionary.Add(1,childDictionary)
Now I need to iterate over childDictionary to fetch key value pairs.My childDictionary is inside parentDictionary.
Have A Dictionary Or Something Of That Sort That Can Hold 3 Values To 1 Key?
May 23, 2009is there a way i can have a dictionary or something of that sort that can hold 3 values to 1 key?
View 12 RepliesInsert Values Into Dictionary On Instantiation?
Nov 3, 2009I can insert values into a VB.NET Dictionary when I create it? I can, but don't want to, do dict.Add(int, "string") for each item.
Basically, I want to do "How to insert values into C# Dictionary on instantiation?" with VB.NET.
var dictionary = new Dictionary<int, string>
{
{0, "string"},
{1, "string2"},
{2, "string3"}
};
Summing Values In Item() Of Dictionary?
May 10, 2009I have a dictionary that has strings variables as keys and a List collection of doubles as values.
Dim CellAddressContainer As New Dictionary(Of String, List(Of Double))
Dim Results As New List(Of Double)
Within a loop I populate the Results variable as follows:
[code].....
Writing Dictionary Values In Separate XML Tags?
Jan 16, 2012If I had multiple entries under my value in my dictionary, is there anyway I can put each value in separate tags to create an xml document?
Is there anyway to split the 3 values into their own tags?
Fields From Database As Per The Query Given?
Jun 20, 2011i have a table named item_details.i have some field named item_id,item_name,quantity,supplier_name etc.i want to see all details as per the item_id given in a textbox.i also want to see details as per the item_name is given.i can use 2 forms to view this type of query..one for item_id..and other to view from item_name.but..i want to use tabcontrol..in 1 tab i want go give the item_name...and want to get the details.and other tab i want to give the item_id...and want to get the details....and whenever i gave wrong information.an error message will be shown.
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DB/Reporting :: Getting Query Fields Into Text Box?
Jan 14, 2009I am writing a little program that does the following:Allows the user to enter a id number.Then when the find button is clicked, we connect to the database and run a select statement for the id.I am trying to figure out how to get the first name, last name and birthdate into textboxes on my form.
I would like to have a way to display a messagebox if the resultset = 0 so as to tell the user no records found.Then if the information is correct I am going to have a button to update the information which is going to call a stored procedure I have in place to update the record.how to make the connection which I think I have working and then loading the individual fields into the appropriate textboxes.
Query Include All Fields In Some Cases But Not Others?
Oct 15, 2010This LINQ to SQL query From g In Db.Context.Current.Groups Select g.GroupID
generates this SQL:
SELECT [t0].[GroupID] FROM [dbo].[Groups] AS [t0]But this query From g In Db.Context.Current.Groups
Select g.GroupID, g.MemberCount
[Code]...
I very much want to select only the fields I need. How can I persuade LINQ to SQL not to select all columns?
Iterate Through The Keys And Values Collections Of A Dictionary Object Using An Index?
Apr 25, 2009I have a VB.NET project where I am able to iterate through the keys and values collections of a dictionary object using an index:
MyDictionary.Keys(idx)
MyDictionary.Values(idx)
When this code is taken from the test project and placed into the real project I get the following error:
'System.Collections.Generic.Dictionary(Of Double, String).KeyCollection' cannot be indexed because it has no default property.[code]...
In the line in sub search that says "dtf.Keys(idx) = 0" place your cursor after the right parenthesis and backspace you should get a tooltip that says, "<Extension> ElementAtOrDefault(index as Integer) as Double - index: the zero based element of the index to retrieve.