I have the following class
Code:
I create thousands of this class and save them in an ArrayList. How can I use ArrayList.IndexOf to search for a member (ID in my case).
Should I create an ArrayList for each member and increase them together then use ArrayList.IndexOf with one of them and use the returning index to get the other values from the other arrays?
I have a arraylist with objects from a Product class. This class as properties like Name, Price, ID ...The ID property is a unique identifier for each object.how to search the object with ID=100
View 3 RepliesI have an ArrayList, and i wish to search it for a specific part of a string. Like the InStr() function.I can only find the WHOLE string. The ArrayList has strings like "This=Is A String", so if i do a check with ArrayList.Contains. It will only search for the whole string, and not something IN the string. Perhaps i need something like Starts With .
Code:
dim wordArr as New ArrayList
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
If wordArr.Contains(TextBox1.Text) Then
[code]....
I am new to VB.net and I am trying to work out an exercise from a book I am reading on VB. Basically I am storing some book information in a hashtable using a class called Book to store the book information. I am trying to work out my Search and Display All procedures. My Search will work for the first value in my arraylist but not for any other values. I even added the ISBN to my book class to try and use this as a search point. The ISBN is used to pull the item from the hashtable as well.
In the main code I am having problems with the ButtonSearch and ButtonAll.
[Code]...
Say if I have an arrayList, AL, that have the following sentences:
AL.item(0) = "This is a brown fox."
AL.item(1) = "This is a brown cat."
AL.item(2) = "This is a brown dog."
Is there an easy way to search "cat" in the arrayList and index 1 will be returned?
What I am doing is iterating through all the groups that belong to the top group (Generic reports). Then I take advantage of the GroupPrincipal.GetMembers(True) which will recurse through a given group name. I test to see if the user exits under that group and if true I put the group name in an arraylist.
I use the for each principal in GroupPrincipal.GetMembers to loop through each returned user to see if they exist.
Is there a way to put all the returned users Principal.Name from a given group in GroupPrincipal.GetMembers into an ArrayList? This would allow me to to use Arraylist1.IndexOf to search for user. Which would be much faster then iterating through a returned list using the for each construct.
Sub RetAllMbrs(strUser As String)
Dim oPC As PrincipalContext = GetPrincipalContext() '<- this is function somewhere else in the code
[Code].....
I have a problem in Treading.I have a code like this;[code].....
I want to change ListBox1 with ArrayList. But I couldn't find how to use adding a string to ArrayList in tread.
I have an arraylist (arrFirstArry) which I use to populate another arraylist (arrNoDuplicates) preventing any duplicates from being added. This works fine. What I would also like my code to do is prevent adding any partial values which may exist from being added. i.e. my array is like this
[Code]...
I have two structures Public Structure myResearchData
Public batchName As String
Public arraylistRData As ArrayList
End Structure
Public Structure myResearchSubData
Public researchDescription As String
[Code]...
Cleared MyResearchData.arraylistRData for new data to be put in but it also clears the arraylist inside MyResearchDataAList and didn't old the contents of the arraylist
What I need to do is read an ArrayList in My.Settings and add another ArrayList to it. The first think I'm trying to do is load My.Settings.Records into myArrayList. I'm not quite sure on the proper way to do this. I've tried things such as Dim myArrayList As ArrayList = My.Settings.Records, I'm not sure if I need New and I'm not sure if I need .Clone or .CopyTo.
Then I have another ArrayList myArrayList2. To get this into myArrayList I've done: [Code] Then to save it back to My.Settings I've done. My.Settings.Records = myArrayList. The problem is I keep on getting Object reference not set to an instance of an object error on the AddRange line. My.Settings.Records is definitely an ArrayList and it will sometimes = Nothing. The objects will only ever be strings.
I want to create an array of an array (or arraylist of an arraylist) to hold strings.I want to fill an array1 with string values Then add this array to array2. - but only taking up 1 row in array2 e.g something like array2(index)=array1 Then clear array1 then loop through this again with different data, and add it to the array2.so will end up with something like
array2(0)... contains a collection of array1 data
array2(1)... contains a collection of different array1 data
.. and so on
i think i need to make new instances of array1 each loop, but not sure.I dont mind if it uses arrays, or arraylists, or lists, or structure of arrayslists?
s there a difference between the arraylist in visual basic and arraylist in C#? I had to convert some C# code to VB and there is a call I make in a third party api that requires me to pass in an arraylist. When I do this in C# it works just fine, but when I do this in VB, I just get back a vaque exception from the api.
[Code]...
The exception I get is very vague and comes from the API. All i get is, "ARException Occured".
i want to ask that how i can open a search page in my vb.net webbrowser with a separate textbox in a tool bar separate from the url text box
View 2 RepliesWith writting a program that demotrates Binary Search Tree operation(insert, delete, and search)in VB.N NET?
View 1 RepliesI have a datagridview with 2 columns, 1 is Batch_Number and another is Existing_Stock, there is about 6000 rows.My question is, I want to be able to write in a TextBox and hit a Search Button to search the Batch_Number column and filter out or highlight the row with the matching number to see the Existing_Stock
View 9 RepliesHow can I search, for example ID Number, and want to highlight the listview item found in search from my first form? I'm using combobox from my second form to search.
View 6 RepliesI'm using SQL as a database in VB 2010, I already add a table to my form as a datagrid view but I don't know how to add buttons for filtering, deleting and adding things in my table, for example I want to have one button on my form call it search button to search in table names or Phone Numbers. how can I do that and where shall I write the code?
View 3 RepliesI'm in a bit of a quandry. I am trying to build a simple search form where the user selects the column title and in puts the criteria then clicks the search button. This is the code I am using
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
details = ComboBox2.Text
'column name selected by user
specifics = TextBox1.Text
'criteria input by user
[Code]...
when you want to use the search engine and when mouse cursor move in textbox search you'll see a small word ("Search") or ("Enter your Search term")
[Code]...
changing the way the site search is done from just search a phrase as one string to searching a phrase "as multiple words" search. For example, if I search "cute puppy" right now, it will search it for "cute puppy" as phrase and won't match just "cute" and "puppy". The way the search is implemented is by passing a search phrase to a Stored Procedure in SQL Server.So now, I need to change to site search so when "cute puppy" is searched, it will search two words.... "cute" and "puppy" instead of just "cute puppy". Below is how the store procedure is implemented
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
[code].....
I'm creating a search function to search through a binary file and find a record based on the users input. Surprisingly, that isn't the problem! The problem I'm having is that as part of this I'm using a procedure to display results in text boxes, and I'm getting the error "Too many arguments to private sub display customer"I've encountered this error before, but never really knew what it was... Here is my code.
Private Sub btnSearch_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnSearch.Click
FilenameCust = "F:\College\CustomersFile.bin"
[code].....
I have a MS access database connected to a VB2008 developed software.
I want to make a search button to search through all the tables in the database.
how can I do this?
I want to link a field in table one to a field in table 2 in the database so that they are the same ( whenever I change what is in table 1 table 2 changes to the same automaticaly )
I have three controls on my form; Textbox1, cboCity, lstCity When something (lets say "a") is entered in the TextBox1; I want to get each and every item in combobox cboCity that starts with "a" and add them to listbox lstCity.
View 5 Repliesone of the BIG hurdles in my simple project, making a search engine. I don't know how at all. The search engine need only to search in one Directory with its sub directories and txt files for criteria, and display the results, with option open from the results. any basic code or example maybe?
View 5 RepliesI have a search function in my app which is a groupbox with a textbox that contains the search keyword and a couple of radiobuttons. Do I have to create a keydown event for every single radiobutton and textbox? Or is there a better way? I tried making a keydown event for the groupbox but that didn't work.
If your interested, this is my
Private Sub Search()
Dim textBoxContents As String = txtBoxKeyword.Text
Dim keyword As String = Nothing
[code]....
Im making a search function for an application and they need to be able to search by any value in the DB in any of the three tables. Im wondering the best wayto about this. 2 of the 3 tables have the same columns while the last one is totally different. Below is what I kinda "thought" itd look like but no.
"SELECT * FROM cases, opencases, staff WHERE Crime ='" & txtsearch.Text.ToString & "'"
I need to query the results the user can search for anyterm and if it matches something in the columns it return it to the user. Im wondering if the best way to go about this is to maybe query all the tables and then put all the matching records in a seperate table and the dgv look at that table or how to exactly go about it.
I am developing a application in which i need to get images from a search engine. there are many choices to do that google,yahoo, bing etc. I chose bing simply because microsoft provides tight integration with bing and it offers more functionality to developers. So after searching some more i learned how to use this service in my application. Created a key and added web service reference in my solution.[code]But i cant figure out how to do that, after a lot of searching i came up with this link here url...I am unable to use it. If i use it no results are returned.
View 4 Repliesi have 1button,1textbox,1datagridview.i want to make a search button with it to search for student id..i use ms access..example i type 12-200705-0005 on the textbox,then i click search button,then the data with student id will show at datagridview..
View 1 Replieshow to create a search box using visual basic that will search a data base?
View 3 RepliesThis is the code I posted before. I have a thread open but it is confusing. I have a search of a datagridview. The search works. Now I would like to highlight the corresponding row of the search result. Scroll down to the highlighted row. If there are multiple results to the search critiria the next one should be highlighted.
Dim foundit As Integer = 0
Dim intResponse As DialogResult
With Me.DS.table
[CODE]...