Create Sql Union Like Filter In Dataview?
Aug 3, 2010Is it possible to create sql union like filter in dataview
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Filter A Dataview & Bind It To A Datagrid?
Jun 9, 2009I'm tryng to filter a Dataview & bind it to a datagrid but when I do the below, there is no effect. The dataview returns the original recordset.
Dim
filteredProductSpecs As DataView = Me.ProductSpecifications.DefaultView
filteredProductSpecs.AllowEdit = True
filteredProductSpecs.AllowNew = True
[Code].....
DataView Manager (Row Filter) Do Not Apply Change
Nov 9, 2009viewManager.DataViewSettings(tableFoood).RowFilter =
""viewManager.DataViewSettings(tableFoood).RowStateFilter = DataViewRowState.OriginalRows
viewManager.DataViewSettings(tableFoood).RowFilter =
"ftype=" & type & ""
In table food, I have different type of food, according I want to display in datagridview but dataview on first time show content of food, not change content in grid.
Filter A DataView To A String Nearest Match?
Aug 14, 2009How can i filter a DataView to a string nearest match? Almost like a FullTextSearch, is this posible using a DataView?
View 1 RepliesUse Dataview.Rowfilter To Filter Datagridview For Users?
Aug 12, 2011I am trying to use dataview.Rowfilter to filter datagridview for users. The basic idea is that user enters a text in a textbox, and then the below function is called to filter the text in all columns, like Col1=value OR col2=value OR col3=value. But I got error message of the filter expression.
[Code]...
VS 2008 Dataview Filter Multiple Comboboxes?
Feb 15, 2011This post is a continuation of my other post concerning 'List(of) with multiple comboboxes refill problem.'. I threw the list overboard and began anew with a Dataview.
So far I (finally) managed to get 2 comboboxes (will be more, but if it works for 2...) loaded with the same data using different dataviews (DataView1 & DataView2) so I can select a value from each combobox without the other following the selection.
But now I want to filter out the selected value from the other combobox.
This also works.
The only thing is this: If I select in combobox1 the value 3, and select in combobox2 the value 4, combobox1 will change to the value 2.
If I select in combobox1 the value 2, and select in combobox2 the value 1, combobox1 will change to the value 3.
It works also the other way arround. I can't seem to get my hands around the problem..
Does somehow the index of the items in the combobox play's part? I don't use the selectedIndex, so from my point of view it can't be..
The code I use:
(with the item 0 as 'neutral' option)
Public Class Form1
Dim dTable As New DataTable
[Code].....
VS 2010 Filter Data With DataTable And DataView?
Feb 15, 2012I'm loading a DataGridView from a DataView which collects data from a DataTable. I use the DataView to filter, this is the
Dim dv As New DataView
dv = DataSet4.Tables("TABLA1").DefaultView
dv.RowFilter = "propietario='" + NombrePro + "'"
[code].....
Format DataColumn Values In DataView.Filter Expression?
Jun 11, 2012I am trying to build a filter string for my DataView, but I have run into a problem. My underlying DataTable contains values that are formatted when displayed in my DataGridView.For example, if the DataColumn contains 1.52 and the DataGridViewColumn.DefaultCellStyle.Format = "n0" then 2 is displayed.So the user sees 2, then sets the DataView.RowFilter = "DataColumn = 2", and no DataRows are returned. Is there a way to format the DataColumn in the RowFilter string? For example, DataView.RowFilter = "FORMAT(DataColumn, "n0") IN (2, 4)". This filter string should return 3 rows. If not, can LINQ do this?
View 5 RepliesCreate A Credit Union Application In VB2008 ?
Mar 11, 2011I have been given a project to do were i have to create a credit union application in VB2008, what i need to create this application etc like how many labels textboxs etc obviously i need to create it but all am asking is if you could tell me were to start as i am lost and never really created anything in vb 2008.
Here is the spec:
The client is prompted for their name and a personal reference number. If the application is successful then this number becomes the loan agreement reference number. If the applicant has a credit rating of 14 or more points the application is rejected. If the credit rating is less than 14 points then the client is prompted for the loan period (must be equal to 12, 24 or 36 months) and the amount required.
The cost of the loan is 6% if required over 12 months and 8% if over 24 months and 12% over 36 months. This is added to the loan. The applicant's net monthly income and total monthly outgoings are taken into account. If the monthly repayment is more than 25% of disposable income (net income outgoings), then the application is rejected. If the repayment is less than or equal to 25% then the loan is granted and a form is produced and printed with the relevant information, including the loan and repayment amounts.
Project - Create A Credit Union Application
Mar 3, 2011I have been given a project to do were i have to create a credit union application in Visual studio2008 am just wondering if you could tell me what i need to create this application like how many labels textboxs etc obviously i need to create it but all am asking is if you could tell me were to start as i am lost and never really created anything in vs 2008. here is the spec
The applicant's age is considered, thus
CODE:
The client is prompted for their name and a personal reference number. If the application is successful then this number becomes the loan agreement reference number.
If the applicant has a credit rating of 14 or more points the application is rejected.
If the credit rating is less than 14 points then the client is prompted for the loan period (must be equal to 12, 24 or 36 months) and the amount required.
The cost of the loan is 6% if required over 12 months and 8% if over 24 months and 12% over 36 months. This is added to the loan.
The applicant's net monthly income and total monthly outgoings are taken into account.
If the monthly repayment is more than 25% of disposable income (net income outgoings), then the application is rejected.
If the repayment is less than or equal to 25% then the loan is granted and a form is produced and printed with the relevant information, including the loan and repayment amounts.
VS 2005 Datatable Vs Dataview - Apply A Filter To The Defaultview.rowfilter Property Of That Datatable
Mar 15, 2010I have a datatable and I apply a filter to the defaultview.rowfilter property of that datatable. If I then loop through the rows collection of the datatable, will I only be able to see those rows that the filter applies to, or will it loop through all the rows?
View 6 RepliesFilter Data From Dataview By Date Like 12-05-2010 To 20-11-2010?
Nov 20, 2010How can I filter data from dataview by Date Like 12-05-2010 to 20-11-2010
View 1 RepliesDataView.Sort - DataView.Find On A DataTable That Is Already 'ORDERED' By The Column
Nov 20, 2010If want to do a DataView.Find on a DataTable that is already 'ORDERED' by the Column I am seaching, so a DataView.SORT should not be necessary, but it throws an Exception if I don't give a .sort command before the .find command. Is there any way to avoid this apparant duplication ? and speed up the search time. Its a very large table - 1 million rows. I am using VB 2010
View 6 RepliesSorting With DataView - Dataview Always Sort The Highest Number Is The Buttom
Jan 5, 2012I got a problem with dataview that get data from datatabel (Col1 : ID,Col2: Time) and I'm sorting by Time in desc ... when the values for example {40.21,80.21,70.25,25.2} the dataview sorting them as I need but when one of values goes above 100 for example {40.21,80.21,100.25,25.2} the dataview always sort the highest number is the buttom, I don't know why ..
This is a sample code
Dim dt As New DataTable
dt.Columns.Add("ID")
dt.Columns.Add("Time")
[CODE]...
Create A DataView From The Dataset / Datatable?
Jan 2, 2010How to create a dataview from a datatable?
What is the basic use of the created dataview?
Create A DataView That Load A Table From Database?
Feb 12, 2012I create a DataView that load a table from database.
Dim da As OleDb.OleDbDataAdapter
da = New OleDb.OleDbDataAdapter("select * from customers order by name", cnmain) ' I load complete table
[Code].....
�Thst's all I need? Because when I recover the first row of DataView filtered, it appears the first row initially loaded when I don't put filter.. �Do I need to refresh DataView to view te changes?
System.Data.DataTable - Create A Dataview And Then Loop Through View
Jun 25, 2010im trying to select some rows based on a criteria, i was wondering is it faster if i create a dataview (based on the criteria) and then loop through the view? or should i loop through the entire datatable and check the criteria manually.
View 5 RepliesCreate A Select All Filter In Combobox?
Oct 18, 2009I am making a combobox dropdown to filter a report. I am using the table adapter to query the data and fill the report from the selected item in the combobox. However, if the user select index 0 (which is "-Select User-") , then the query should disable the filter and select all users in the database. How would I go about doing this with these 2 conditions?
View 1 RepliesCreate Filter By With Multi-ComboBox?
Mar 30, 2012who can clearify more about how to link the relationship between a Local database to ComboBoxes as an example below:
1. ComboType: it will show only kind of audio file extension
2.ComboCompany: will show only the music company name we added
3.ComboVolt: will show of album volt
How it work
If we've selected the ComboType Ex: mp3 file then in the ComboCompany After we have selected with any album name.
The last result is in ComboVolt the number of volt will show up base on we have selected the name of any company name in ComboCompany.
[Code]....
Create A Filter In Data Grid View?
Feb 23, 2011How to create a Filter in Data Grid view.
View 3 RepliesHow To Create Filter That Limit Results (Max Rows)
Mar 27, 2012I 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?
Pass Property To Create Filter Like LINQ?
Jan 6, 2011I`m looking for a way to parse a parameter name like linq does.I want to filter before i download the date from the database.With LINQ the data is already red into a dataset. I only want to select data from the database witch i need. how i can send a property name to a function without using the property name as string and without to use to mutch code inside the function and without creating an instance of the object, etc.
Module
Module1
Dim user
As user =
[code]....
C++ Union To .NET?
May 15, 2011What are 'unions' in C plus used for? I have some old C++ files that I'm trying to update,and not sure how I can convert these to VB:
struct txyz {
union {
struct {
float_t Time;
float_t X;
float_t Y;
[Code]...
Create DataSet And Configure Query Builder Filter
Jan 18, 2010I create a dataset and configure the query builder and in the filter i key in this "?" and when I search the name by enter the full name it will show but what I want is just type "A" and it will show the whole name starting with A. I stuck in this problem what the code to do in order to type just 1 letter and show the whole name starting with first letter that I want.
View 9 RepliesLINQ-TO-XML Using UNION?
Feb 3, 2010I am trying to union to queries to create an XML file. The query itself works as T-SQL, but my implementation as LINQ-TO-XML fails with "Could not translate expression..." error.Am I asking the wrong question? Is this approach flat wrong? I am new to LINQ. How do I create a single XML from 2 queries?
[code]...
Use Union In Linq?
Jan 19, 2010I know how to call the Union extension method, e.g.
Dim r = productFirstChars.Union(customerFirstChars)
However I do I do this with the Linq syntax, e.g.
from productFirstChars select ?
Use The Tabcontrol To Create An Indexed View Of The Datagrid Using The Alphabet To Filter?
Oct 19, 2009i have a form with a textbox, datagridview, tabcontrol. I use the tabcontrol to create an indexed view of the datagrid using the alphabet to filter the records to show the respected fields according what tab was selected. The textbox I have on the form is databinded to a field of a table in the database. The datagrid is also databinded to the same table in the database. The binding on the textbox breaks when I press on a tab to change the filter type. On the tabcontrol.selectedindex event I have this code to filter and fill the datagrid is: conn.Open()
[code]...
VS 2008 Read Records, Filter By Staff, And Create Output?
Mar 2, 2010I have an warning for the Functions below on SaveDestFile and MakeFile. I am not sure why.
Warning1Function 'SaveDestFile' doesn't return a value on all code paths. A null reference exception could occur at run time when the result is used.
Module Functions
'Global Variables
Public MyStaff As String
Public MyFile As String
Public DestFile As String
[Code]...
Distinct When Using Union On LINQ?
Nov 18, 2010When the user has typed in some information I would like to output possible matches in a descending order, so if someone types in a full first name and a full surname, it should be listed above a result where just the surname matches.I've done something similar in SQL before which worked perfectly, but this time I'd like to do it in LINQ.
Firstname, Surname, City, Country as string variables.
Dim DataEnum As IEnumerable(Of frmTelephone.clsPerson) = alPerson.OfType(Of frmTelephone.clsPerson)()
[code].....
VS 2008 - Create A Linq Filter To Select Only Unique Records For TableName + PKs
May 22, 2011Basically i have a list(of TransRecord)
vb Public Class TransRecord
Public TableName As String
Public PKs As String
[CODE]...
And want to create a linq filter to select only unique records for TableName + PKs (group by) ... but want it to select only the record with the highest ID for this group by.