How To Limit Results Of ComboBox
May 28, 2011
I have a simple database comprised of one table (called "Plants") and one form (called "Plants To Use"). In the "Plant To Use" form there are two fields: Plant ID (a nine-digit ID) and Paired Plant ID (a combo box pulling all of the Plant IDs). I want to limit the Plant IDs in the combo box to only IDs that match the 3rd, 4th and 5th digits of the "Plant ID" on the form. For example, if I pull up the record of 99874234 on the "Plant To Use" form I want my combo box to list all other Plant IDs that have 874 in the 3rd, 4th and 5th digit (e.g., 778746320, etc.).
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Mar 27, 2012
I have a data bound datagridview on my form. I need the datagridview to sort by oldest date, and then return only the 150 oldest. The goal is to export the 150 rows with the oldest date to a .csv file and then update the date column to the current date for only those 150.
Here is what I have so far:
Dim appPath As String = Path.GetDirectoryName(Application.ExecutablePath)
Dim tdate As Date
tdate = Today.Date
'sort datelastemailed by oldest to be emailed first
DataGridView1.Sort(DateLastEmailedDataGridViewTextBoxColumn,
[Code] ....
I can get it filter by the column "status" and then sort by "datelastemailed". I can also get it to export only those 150 to the .csv file. My issue is that I need only those 150 to have their date column updated to today's date and then saved to the database. The only way I can see to get that done is to set a max number of rows for my databound datagridview and then loop through each row in the date column. How I can create a filter that limits results?
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Feb 2, 2011
I have some code that builds a treeview and replicates our AD structure - this runs fine.
One issue i found is when searching through the DirectoryEntries it lists all items where i would like to limit them to Organisational Units only. I thought or using the DirectorySearcher but it seems that i would have two operations running at the same time probably doing the same thing but returning slightly different results just to limit to show what i need. Is there a way to tie DirectoryEntries/Entry with a DirectorySeracher to limit results to Organisation Units or is there a way to do this another way and still have it displayed under a treeview?
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Feb 4, 2011
I have 3 ComboBox, I need the selection of the combobox to equal a number, (for example, the first option would = 1, second option would =4 and so on).the numbers will then be added up to show the sum.
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Jan 9, 2009
Im using a combobox that bound to a DataSet. The Dataset retreives it's values from SQL.
I can retreive the values fine. However only displaying (1) Column. Which is fine.
Here's where it gets complicated for me. The dataset has 2 other columns that get filled. I need the resulting columns to be sent to text boxes when I select a value from the combobox.
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Apr 17, 2009
populate a simple combobox with a query to a MySql database. I Just want the combobox to show the results of the query:
SELET DISTINCT models from Cars
I am using VB 2008 with Datasets, how can I achieve this?
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Jan 11, 2012
I'm having a devel of a time getting what I figure is something simple to work.
I need to set up a Combobox where the list of items is created by accessing a stored procedure.
The SQL code is simply (I left off the code to create the sp);
SELECT ItemCode
FROM vw_CodeList
GROUP BY ItemCode
ORDER BY ItemCode
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May 5, 2012
I've populated my DataTable will all the results from a SQL search. Upon a button click I want to populate a combobox with all the results where a condition is met. My DataTable as a column called UserID and I want to add all results where the UserID is equal to a set value (for example 12). I can do this to add all results and I guess I could add a if statement inside this to be If Entry.Tag = 12 Then but is there a better way?
[Code]...
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May 28, 2010
I'm trying to create a Windows form application which uses a few data grid views to pull data back from a SQL Server database. I've managed to get the data back okay from the tables but what I want to do is filter that data dynamically based on values input by the user from a combo box and a date time picker. Each of the data grids display production data for a machine but the combo box and date time picker will allow the data to be filtered by shift and date respectively - how to I pass the values of these to the SQL query returning the data?
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Dec 9, 2010
I am currently having a headache on how to solve this problem that i am facing.here is the situation:I have a combobox and a list box on the main form. The combobox will get the data from the ms access database.In the database, i have the details of a person's IC, Name and DOB say for eg on one entry I have D215311523C,SHAWN,13/04/1987
So now, my combobox on form load will show the list of dates in the database to allow the user to search base on the date itself by clicking on the selected date. So when the user clicks on the particular date say 13/04/1987, people in the database whose birthday is 13/04/1987 will be shown on the listbox.Meaning to say if i have 3 entries whose dates are the same 13/04/1987, 3 entries will appear. If there is only two entry, then two results will be shown.
[Code]...
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Sep 28, 2010
I have a form that allows users to select file and then it reads the contents, parses the data and then executes a sql insert statement to add it to a database. What I am having issues with is showing real-time results. Currently, I have the import operation take place on the import form within the OnLoad event. The problem with this is it only shows the final results instead of the results real-time. Is there anyway to do this without creating a seperate thread and delegates?
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Jul 22, 2009
How can I make this program not to give me the results for the quit command input of -999 but rather just to quit without the results?
Sub Main()
Dim TempIncelsius As Double
Dim TempInput As Double
Dim Formula As Double
[CODE]...
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Jan 23, 2010
is there anyway to limit the rows selected in adodb?i had something like this
vb.net
Dim command As New OleDb.OleDbCommand("select*from Table order by Col1 limit 5", connection)
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Feb 25, 2010
how to limit Bandwidth using ftp
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Jan 25, 2010
does textbox has a limit because I added a (very long) code and I couldn't paste further..What can I do make it bigger? I mean bigger of capacity.
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Mar 26, 2011
Im currently trying to set up breadcrumbs on my site, Ive tried two different approaches and the max I have seem to get is only 3 levels on the breadcrumbs. Is there a limit to it?
Home> Hello World > Good Bye Home> World > Good Bye > Forever E.g. I never seem to be able to get Forever to show on the breadcrumb. Is there a limit?
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Aug 5, 2011
I want to build my own flat file database. Here is how I access the flat file database
Dim fs As New System.IO.FileStream("C:MyDb.txt", IO.FileMode.Open, IO.FileAccess.Read, IO.FileShare.Read)
Dim sr As New System.IO.StreamReader(fs)
Is there a limit imposed by .Net for the usage of System.IO.FileShare.Read, System.IO.FileShare.Write and System.IO.FileShare.ReadWrite when dealing with a file?
I mean is that .Net capable to support thousands of users using file stream and stream reader objects with System.IO.FileShare.Read to access a single file concurrently?
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Sep 28, 2005
Excel 2003 Row Limit?
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May 20, 2011
how do u actually limit a listbox to say 10 items
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Jul 10, 2009
Is it possible to open the folder browser (window explorer) in such a way that only one specified folder content is displayed and just the content of that folder (folders or files) can be modified?
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Nov 19, 2009
Is there any way to limit the listbox selection to just 2 I have done this code
Protected Sub ListBox1_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles ListBox1.SelectedIndexChanged
If ListBox1.GetSelectedIndices.Length > 3 Then
[code]....
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Feb 2, 2010
how can i limit the use of a character? Specifically "." period.
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Jun 8, 2011
I wanted to set a maximum limit of characters of textbox in the properties but i can't find where it is located unlike in vb 6.0 you can set the characters in maxlength...
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May 22, 2009
I have this textbox and i want to limit the number of digets able to be entered to 4.
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Sep 4, 2009
i would like to limit a textbox input to 20 characters and only one line to input the characters.. i really have no idea where to start. i did see some forum threads, except they're for different options other than the option i need.. trujade.so much work to do and so many choices to choose from...
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Jun 9, 2011
I have an integer that is storing the result of a division between two numbers. I usually receive an result that looks like 5,2496874654. How can I limit the variable length so it looks more 'approximated', like 5,25?
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Jun 14, 2010
I've got a property MyEnumProp which is displayed in a property grid. The property is of type MyEnum. So all entries of MyEnum are available in the propertygrid to select.Now i have a second property and based on its value i want to limit the values available in the propertyGrid for MyEnumProp.Is there a way to accomplish this?For instance: The following 2 Enums are defined in an Interface:
Enum Country
England
France
[code].....
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Sep 2, 2009
How do you limit the CPU of a while loop?
In this case, the code which is inside the while loop[code]...
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Nov 1, 2011
I have a datagrid that displays data from an xml file:
[Code]...
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Aug 8, 2011
how I would put a maximum of rows in a datalist. I have the program reading from a db and I just need to limit the amount of users in the view. The database is organizing the users according to rank and I have it so that it will read the users by rank in descending order (highest rank 1st) I need to limit it to 5 users. Is there a method for this? P.S. I put this here because I know that this is more of a vb.net code oriented question(limiting amount of data shown by an object)
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