Oke I'm writing a small program where the user can fill in some textboxes and a Montcalendar and then put it in a listview by clicking the add button.
The listview has the following columns:
--Month ( which is retrieved from the monthcalendar view as followed: Monthcalendar.SelectionStart.Month)
--Day ( which is retrieved from the monthcalendar view as followed:
[Code].....
I am a new one to vb 2005 and I have no idea to get the datagrid filter view option.I developed a new program which have an datagrid view.I want to filter the data based on the 3 thingsthe first one is the "dates between start and end with 2 datetimepicker controlhe Second one is 2 of the filter combo boxes.For ex: it should filter the data between the two datetimepicker
View 4 RepliesAm back from burial with a simple nut scratch....(hope its simple)I've queried my database from about seven comboboxes, textboxes and datetimepickersbut now before the data is put to the list view i want to sort it further more intogroups. Crop is the main group followed by variety.this is the code under the search button
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim sqlCrop, sqlVariety, sqlEnteredBy, sqlFromTo, sqlSDN, sqlWHERE, sqlAND1, sqlAND2,
[code]......
I have a child form which contains a list of names and information, like age, sex, etc, in a multicolumn listview that gets populated from an xml file on the form load.There is also a combobox on this form that contains different Ages and when the user selects an age in the combobox I have it so the listview clears and the data reloads then removes all the rows that don't contain the matching "age" value in the age column.This works but it's really slow since each time a user makes another choice from the Combobox the whole listview is repopulated from the xml file.[code]I was thinking about doing the Name filter about the same way except on the textbox keyup event, but I fiqured I'd work at getting this working better first since this is way too slow.I don't really know any way of filtering the listview other than deleting the entries that don't match what's in the combobox.But then I end up reloading the whole thing when another selection is made from the combobox.
View 4 RepliesI have finally got my head around sorting listviews.My problem is that I have the listview with columns (Name, Folder, Date) and when I sort it by date, it creates groups for each indiviudal date (shown on the left). Is there a way to get the same result as Explorer on the right?
View 2 RepliesI have two dates. [code] How to print all dates between these two dates in one listbox, for example: [code]
View 8 RepliesSay the user specifies these two dates....
Start Date: 2010-12-05
End Date: 2011-01-15
If I select December 2010 I should get the folllowing
startdate = 2010-12-05
enddate = 2010-12-31
Select January 2011 then
startdate = 2011-01-01
enddate = 2011-01-15
Should I subtract dates? How can I get the start and enddate for the current month/year based on the overall start and end date.I'm coding in vb.net.
I'm using two datetimepicker controls to set the start and end dates for a range of dates I'm searching for.I want to make sure that the start date selected is not greater than the end date. This code works, but it runs the messagebox prompt twice for some reason. I've tried to ignore it from doing this, but it's not working. Can someone tell me what's wrong?
Private Sub dtpStart_ValueChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles dtpStart.ValueChanged
[Code]...
I have one more problem with MonthControl.And when I bold some dates the program doesn't show bold dates on month calendar.When I move on next or previous month and get back to currently month the program normal displays bold dates. What's the problem?
View 22 RepliesI created a query on a Access database, which I would like to show with the datagridview. So, I created a new table adapter with my query, which creates as well the datatable tbl1. Then, the wizard created the datagridview for me, showing the correct data. Now, I would like to filter these rows: I already read it is possible to do it by simply clicking "Add query...", but I would like to do it in a different way. I have some comboboxes, and I would like to use the strings inside them to filter my table tbl1. Is it possible to apply those queries one after the other on my datatable tbl1? I am able to filter only once with:
Me.tbl1TableAdapter.FillBySomething(Me.DataSet.tbl1, params...)
But, if I wanted to filter the result again?
I am having trouble filling my datagridview from a separate combobox selection.On my form, I have a datagridview that displays all the contents from my tab delimited text file (customers.txt). Also, on the same form I have a combo box that displays all the customers names.
Once a user selects a name, the datagridview should populate details about the selected customer. I figured out how to fill a multiline textbox; however,I want to fill a datagridview instead but am unsure how to go about doing so.Code for filling mutiline textbox with customers details
Private Sub ComboBox1_SelectedIndexChanged(sender As System.Object, e As System.EventArgs) Handles ComboBox1.SelectedIndexChanged
Dim dr As DataRow = table.Rows(combobox1.SelectedIndex)[code]......
I have a structure representing a log, containing fields such as Order Number, Line Number, etc. Each time a test is done, this log structure is serialized and appended to an Xml file created on the day which the test was done. At present, i have 20 or so Xml files containing varying number of log structures which i would like to be able to filter through in a single search. My target at present is to be able to load all data against a specific order number, and also to perform a search and return distinct records, as there could be multiple Order Numbers in one or many files.So far, i've attempted to load all the data from all files into a large generic List(Of Log) and use LINQ to filter out the results. I've also tried loading all the data into a DataTable and filtering using the Select method. The last method i used was using the SelectNodes method from the XmlDocument class. All of these methods seemed to work but i was becoming stuck when filtering distinct records?
View 1 Repliesworking on a little app which requires the user to select items from a listbox bound to a dataview, then adding selected items to a new table. In the new table calculations are done, and so far its all working pretty good. The problems comes in is that there are many values and types to filter and I am having some trouble with the search aspects. So far in my code I am going about the problem using the datatables in this manner:
to sum it up:
form loads initial data to table
displays it in a dataview bound to a listbox
dataview is filtered using rowfilter queries, controlled in various manner
dataview is converted to table, then selected row is imported to final table
Calculations done on final table values
So far its pretty damn fast and works well, however the searching needs refinement. To give you an idea here is *some* of the search criteria in one of my rowfilter calls.
color:
red
black
[code]....
Form is requested to be as so:
6 checkboxes, and 12 numericupdowns (spin) buttons I have a seperate method to enable/disable them dynamically.
Have a look at the select row query: its getting messy already.Although I am specifying max and min values it seems to only filter by the max value and color, so something is wrong here...but i think it is just syntax... but already its getting a little long, just wait until i add the types as well..
Public Sub mainFilter()
' variables to enable filtering by color
Dim red = ""
Dim black = ""
[code]....
So basically is there a better way for me to go about filtering these table values? I notice in visual studio I can add queries to the dataset in there and they work quite well directly on the source table, without using a dataview and temptable, but when I open the query builder I can't add variables to the queries, which would force me to make queries for every foreseable scenario, and add buttons or menus to activate them all....not good.is there a way to hand code these queries with variables?
alternatively I thought about making a little rowfilter query builder, that substitutes variables for the rowfilter syntax, using some simple control flow, perhaps select case and then add them to the rowfilter query as the user enables/disables them in the form.i.e.
if RedCheckbox1 then
Redvar = "Color = 'Red'"
Maxvar = " & spinMax.value & "'
[code]....
Why does the following query raise the error below for a row with a NULL value for barrel when I explicitly filter out those rows in the Where clause?
Dim query = From row As dbDataSet.conformalRow In dbDataSet.Tables("conformal") _
Where Not IsDBNull(row.Cal) AndAlso tiCal_drop.Text = row.Cal _
AndAlso Not IsDBNull(row.Tran) AndAlso tiTrans_drop.Text = row.Tran _
[code]....
Run-time exception thrown : System.Data.StrongTypingException - The value for column 'barrel' in table 'conformal' is DBNull.
How should my query / condition be rewritten to work as I intended?
I would like to count records of a datagridview after having applied a search criteria
the code i am using is the following:
Private Sub count_btn_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles count_btn.Click
[code].....
I am saving some operational log information into a XML file. At any time the user can bring up a datatable to display the information. I don't want them to see the 'HOURLY' log. I can't seem to filter this out. Also I need to populate a list box with all the unique events for filtering.
Example XML:
Code:
<?xml version="1.0" standalone="yes"?>
<DocumentElement>
<LOG_x0020_Table>
[code]....
Could anyone tell me how to filter a Microsoft Access data files when using OpenFileDialog?
View 1 RepliesI work with an access mdb When I run the program with the following code it gives an error "Nullreference exception unhandled" "the object... is not for an example of an object..." (very free translated but you will surely recognize this)
This is my code:
Private Sub TextBox5_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TextBox5.TextChanged
Dim dvFilter As DataView = Nothing
[Code].....
I'm currently trying to create a system which stores different cases for clients using Visual Studio 2010.When adding fields from the database a table adapter is automatically created.Me.TblMattersTableAdapter.Fill(Me.MJPAccessDataSet.tblMatters)Now my problem is that each case may be at a different stage. They are either 'Active', 'Closed' or 'Archived'.So my question, is there a way to filter these results? I've tried creating DataTable and only adding the archived cases but I couldn't get it to work. I was trying.
View 4 RepliesI am using VB Net (2008) and SQL (2008) in Windows Forms, I am trying to filter a DataGridView , this DataGridView is being fill by Add New Data Source to my win form thus Dataset, Binding Source, Table Adapter are added to my form. Also my win form has 4 combo Boxes, a button and a DataGridView . Cbobox1 hold all the columns Name of the DGV , let say for instance that Supplier is the name of the column selected by cboBox1, CboBox2 which hold all the operators (being fill manually) like ( =, <> =< , >=, < , > , like, not like, between, not between, is null, is not null ), CboBox3 hold all the names of the Suppliers in alphabetic order, CboBox4 hold the same as CobBox3, Note: Cbobox3 and Cbobox4 values change as CboBox1 select a different column name. When using BindingSource.Filter every thing work fine, for this ex: let say cboBox2 is worth <> See part of my code EX:BindingSource.Filter = String.Format ("{0} {1} {2}", cboBox1.text, cboBox2.text, boBox3.text) except when using the operator "Between" I get this message āBindingSource.Filter do not support this type of operator". So this is why I am trying to use the Sql Select Command. Wandering if it is possible to use the already Sql Connection and Table Adapter to build a SQLString Filter and also could I use the curly braces.
View 5 RepliesI want to be able to use this program to filter through a list of doctors, and based on what doctor you select, only show the patients who see that doctor.
Here is what I have so far, the database has a column with just the doctor names so I thought I should be able to filter it by that and show the patients, but none show up. I don't get an error and it seems to refresh, but nothing ends up in the schedule.
[Code]....
Actually I just realized I don't think I loaded the data from the database as the form loaded. I tried doing that, but get an error where I called for the data to be loaded. I added the code where I try loading the databases.
"No value given for one or more required parameters."
I am using a datagrid to display a dataset. I would like to filter rows on certain fields (ex: ____ (Male/Female). I would want to it post-data retrieval on the client side.
View 3 RepliesI have a database with a Student table and a Class table. There are many students and many classes and each student is a member of a class.I then have a windows form that needs to display a list of student names in a listbox. However, I have a different form for each class. So for example in this form I have coded below, I need to display all students that are members of class51. The code I have so far is reading in all students from tblStudent and this is not what I want. I know that if I was doing SQL or something I'd simply write SELECT * FROM TBLSTUDENT WHERE CLASSID =his?
Private Sub frmAttendace51_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
'clear data set of any existing data
[code].....
I have a combobox where I use datasource to populate it with data, in the key press event I have the following coding which i use to filter the data.
With Me.Combobox1
Dim ToFind As String = .Text.Substring(0, .SelectionStart) & e.KeyChar
Dim Index As Integer = .FindStringExact(ToFind)
[Code]....
I know this would be possible by me changing the style to dropdownlist but its not exactly what I was after.
I am using vb2005, and I am using MS Access 2003 as my database.
This is what I am doing and this is what I would like to happend
I have two combo boxes, combobox1 and combobox2
I have two tables, Application table and Group table
Here is how the data is going to be display:
Combobox1 = Application Table
Combobox2 = Group Table
In the Application Table I have 3 columns ID, Code, Description
The same information applies for the Group table
THis is an example of the Application table
CODE DESCRIPTION
1 Purchasing
2 Stores
3 Assets
[Code]....
I am using VS 2008 and have a DataGridView linked to a SQL table. One of the columns in my table is a dueDate column. On my form I have a set of check boxes and one of them is set to display all rows that have a dueDate > today's date (well that's what I want it to do). I have set up another filter on other criteria in other columns and am able to get it to work fine but I can't seem to find the trick to get the date comparison to work.
Here's the line I am having an issue with. BillLogBindingSource.Filter = ("dueDate < System.DateTime.Now.Date")
I would like to filter files in a folder so only files with a preselected name format are shown the format is like this "**??????" where ** is two characters selected using the variable acpattern. and the file in the folder is assigned to the variable curFile. i want to only show curFile if it has the same format as acpattern. [Code]
View 1 RepliesDim di As New IO.DirectoryInfo("c:")
Dim diar1 As IO.FileInfo() = di.GetFiles("*.jpg")
How can i use multiple filter to retrieve list of files in directory.
i tried some examples for troubleshooting
("*.jpg|*.png")
("*.jpg,*.png")
But its only filtering one type of file. i need your help about that.
I am using Vb.net2005. I have a datagridview which displays some data. I want to filter the records based on some criteria given by the user at runtime. How can I do th
View 5 RepliesI have a gridview that contains user info and one of the columns is a date when the user was added to the system. Is it possible to use the GridView.onRowCreated method to check if the user was added within a given time frame? If the user was added within that timeframe, then the row is added, if not, then that row is not added.
Note that I can't modify the datasource of the gridview, so I need to do this somehow as the gridview is being created.
