VS 2008 Filter The BindingSource Based On Text Matches Between Any Of The Fields In The Child Table
Jul 16, 2011
I have a database with a table that is a child to many other tables. I am using this child table as a datasource for a datagridview. I am using comboboxes to display specific fields in any parent tables, instead of the user seeing the foreign key. Everything is fine. However, I would like to filter the BindingSource based on text matches between any of the fields in the child table and the corresponding fields of the parent tables.
[Code]...
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Jul 9, 2010
I have a table (Projects) which is linked to projectVersions on projectID..projectVersions contains several columns on which I'd like to filter a returned project (and associated projectVersions) list. For example there is a "capacity" column and a "country" column. I am doing a filtered list of projects on one page and I'd like to include all projects where any one of the associated projectVersions has a capacity of 750ml and a country of "France" for example.It may be that a particular parameter is not set and so I pass a zero to indicate not to filter on that.I guess this needs some kind of subquery as when I try and do something like this: [code] it doesn't work as the "xxx" bit, being one-to-many, expects me to specify an item to get at the entities within and yet I want to query where ANY of the associated versions match one of the criteria.
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Mar 20, 2009
I am trying to filter the results of a datagridviw using the bindingsource.filter method.
Dim filters(2) As String
...
If Me.txtPartIDFilter.Text = "" Then
[code]....
The issue is in the last line. ID_Part is an Int64 data type filters(0) is a string so the system returns a "Can't perform 'Like' operation on System.Int64 and System.String" error message.As you can see I tried converting the data type, but that failed since it is encased in String.Format()- it's going to be a string no matter what, I suppose.It's almost 1:00 a.m. so I'm not firing on all cylinders.
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Jun 5, 2011
use dataset , bindingsource and table adabter to filter or serch on database and update the datagridview
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
'TODO: This line of code loads data into the 'Database3DataSet1.Table3' table. You can
[code].....
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Aug 23, 2010
I have two tables Employees and CafeLogs. Some employees can be cashiers and also customers at the Cafe shop.
Table structures:
Employees: EmployeeId(PK) , FirstName, LastName
CafeLogs: LogId (PK), CashierId, EmployeeId, Value, => CashierId and EmployeeId are the data from column EmployeeId of Empoyee table
Table relationship:
Employees 1:N CafeLogs (CashierId (FK))
[code]....
Right now I know how to select only LogId, Employee's name, and , Value, not with Cashier name yet.
Dim query = From log In db.CafeLogs _
Join emp In db.Employees On emp.EmployeeId Equals log.EmployeeId _
Select log.LogId, emp.FirsName, emp.LastName, log.Value
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Jun 12, 2011
Private Sub LoadMovieDetails()
Try
Dim cmd As SqlCeCommand
[code].....
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Apr 9, 2009
i saw jim example in the codebank and i added the percent progress parameter to report progress method (to change the progress bar value)this is jim example:-
vb.net
Private Sub BackgroundWorker1_DoWork(ByVal sender As Object, _
ByVal e As DoWorkEventArgs) Handles BackgroundWorker1.DoWork
[code]....
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Jun 25, 2011
i am currently working on a database project using Microsoft Access 2007 and VB Express 2008.my problem is, i want to create a searching function in one of my tables; table Coachee. I know that it is possible to search data using bindingsource.filter as i've already succeeded in doing that. The thing is, how do i actually prompt a messagebox saying that the record of the Coachee ID to be searched is not found? [code]
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Apr 17, 2010
How to check if string entered in a text box matches a field in a data table
I have a form with two text boxes for users to enter their Username and Password. When they enter their details and click the 'Login' button I want their details to be
checked against data in a data table to see if they match or not. I am using an 'if...else' statement but can't work out the syntax to use. My code is as follows[code]...Check when string entered in a text box matches field in data table?
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Apr 17, 2010
How to check if string entered in a text box matches a field in a data table.I have a form with two text boxes for users to enter their Username and Password. When they enter their details and click the 'Login' button I want their details to be checked against data in a data table to see if they match or not. I am using an 'if...else' statement but can't work out the syntax to use. My code is as follows:[code]The fields I want to match the textbox strings against in my database table are called 'Username' and 'Password'.
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Apr 24, 2011
This is my line of codes. but it only compares to the equal match on the textbox. is there any way where i can match even just a keyword and will select all items with the same keyword that i type on textbox.[code]...
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Feb 13, 2012
how to execute this SQL Statement
Scenario:
Given Tables T_Data, T_AllDesc, T_System1, T_System2
Given Fields:
T_Data= f_id, f_Desc, f_CreationDate, f_CreationTime, f_System1, f_System2
[Code].....
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Jul 10, 2011
I am Working VB.NET 08 Windows Appl.I Have Combobox and DataGridView in the Form.In the Combobx Having Names list Called "SurName".In The DataGridView on of the Column is "SurName".So when change the data on the Combobx list the dataGridView is Filtering and displaying the values correctly.For this i wrote a code in Select IndexChanged or SelectionCommitedChange Event.
But now my task is when i Type the text in the Combobox the related data should be filter in the DataGridView.If i type any letter in the Combbox the datagridview rows starts filter.
For Ex: Names are like 'Mali', 'Malu','Maal','Mouli'.
If i type 'M' letter in the Combobox then 4 rows Filter in the DataGridView.
If i Type 'Ma' then 3 rows ,
If i type 'Mal' then 2 rows,
If i type 'Mali' then 1 row.
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May 7, 2010
i want to take a comma delimited text file and then select all unique records based on one of the fields in the text file. should i read the text file into a data table or just use a data reader?
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Oct 28, 2009
I'm trying to find a good way to parse through text and only get certain matches, like say someone puts the text "My name is Bob" in a textbox, then it puts the text "<Tag>My name is Bob</Tag>" in another textbox, and my problem is, if that person were to put..."My name is </Tag> Bob" in the textbox, when the RegEx match is found, you would only get "My name is" as a match. So how can I make sure that the text input no matter what it is will not interfere with the <Tag></Tag> when using the RegEx:
(?<=(<Tag>).+?(?=(</Tag>))
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Feb 28, 2011
I have a Query to Display values in grid view, now i wanted impose certain condition in query to filter the values.I have FABDue(date column) and FABComp(date column)columns in a table.I need to check following two conditions in query
1.Records which does not contain FABdue date in FABDue column, then those records should not be listed in Grid view.
2.Rcords which are having FabComp(column) date then those records should not be listed in grid view
[Code]...
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Feb 4, 2009
I have a datagridview that's taking a while to load because my table contains almost 5000 records. How can I provide an easy way for clients to filter the grid based on a product name. I was thinking of having labels with each alphabet on my form and when they click a label it filters the bindingsource according to the chosen alphabet. this seems like an awkward solution though.
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Mar 5, 2009
I've been working on this RegEx for the past day or so and I think I have it worked out so that it returns the data I want. First a little background.I have a content editor that users will be able to edit web pages. They can format text, add links, etc.. standard content editor stuff. When they click save, the editor provides the ability to get the content (editor.Content) and put it into a string. What I want to do is get any links (<a> tags) and find out if they are internal or external links and if they are PDF files.
Here is the Expression I've come up with:
<a[^<>]*hrefs*=s*[""'](?<domain>https?://[^/s'""]*)*/?(?<path>/?[^s""]+?)?[[>""']
With this, I am able to separate the domain (if it has one) and the path out. Then, I loop through the matches...
dim matchColl as MatchCollection = Regex.Matches(editorContent, regExString)
For Each m as Match in matchColl
If m.Groups("domain").value <> myInternalDomain and m.Groups("domain").value <> "" then
'this is an external domain... do some stuff
[code]....
My question is this... the parts where I 'do some stuff' to the values, what would be the best way to get that back into my 'editorContent' string? I could probably put the editorContent into a StringBuilder and do a whole bunch of replaces on it, but is that very efficient?So, for example, with the PDF, I want to specify that it open in a new window (target="_blank") and for the external URL, add some javascript code into the onclick attribute.
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Oct 29, 2009
In my application, I have a single table. Two of the fields in the table are COUNTY and CATNUM. Both are string.
I want to perform a FIND on both fields. I have no problem doing the search on CATNUM alone IF I set a FILTER first. Due to the size of the table, it takes a few seconds to set the filter. Once the filter is set, .FIND works quickly.
The customer has the option of setting a filter to work on one COUNTRY at a time. If they choose to do so, no problem.
If they don't have a filter set and they are using the entire table, then when the customer wants to search for a COUNTRY & CATNUM, I present a list of COUNTRIES in the table and a textbox for them to input the CATNUM.
Now I have the COUNRTY and CATNUM - how do I do the FIND? I already know that I can FILTER the table by COUNTRY then do the find but as I said before, it takes too long for the filter to be set (in my mind anyway!).
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Oct 21, 2010
I have a bindingsource question, didn't know if anyone had run into this before, but,there are several textboxes I put on a form, the text of each textbox is bound to a field in a table from the bindingsource. Why is it when I update the tableadapter, some of the fields update and some of them don't?
Example:
using the bindingsource
Textbox1.Text is bound to UnitListBindingSource - UnitNumber
[code].....
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Oct 15, 2011
How may I filter a bindingsource between 2 numbers? Obviously "column_name BETWEEN Num1 AND Num2" does not work, since between is nor supported.
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Sep 23, 2011
How may I filter a bindingsource between 2 numbers? Obviously "column_name BETWEEN Num1 AND Num2" does not work, since "between" operator is not supported
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Jun 3, 2011
I consider myself fairly new to VB.NET, so maybe you could help me here.I have a bindingSource which is bound to a dataset. I have a filter on the bindingsource. My problem is that when I add a new row, with BindingSource.AddNew, even if it does not match the filter criteria, it still isn't filtered out.Could it be that the bindingsource filter never filters out detached rows? If so, what can I do in this situation?
[Code]...
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May 10, 2009
I've been researching it, but can't seem to find any relevent info. I'm trying to filter my BindingSource by first letter in a certain field, in this case, the title field. I can't seem to come up with the correct syntax for constructing the string. The scenario is thus.here is a dropdown combobox with a collection of items such as '0 - 9', 'A', 'B', etc...My filter so far looks like this, at least for the letters, probably have to chain one for the numbers...
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Oct 25, 2011
I have a form that has a DataGridView named dgvResults on it. When the form is initialized I bind dgvResults to a DataTable named prpResultsTable using a BindingSource named bs. Code shown below:
Public Class frmImportData
Private cv_clsB As clsBatch
Public Sub New(ByRef clsB As clsBatch)[code]....
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Jul 18, 2011
I want to use a BindingSource to filter data from a database based on column of type Time but I cannot figure out the syntax for the filter. The filter will select records before or after an entered time. When I use a format of'10:30:00' the complaint is that a TimeSpan and String cannot be compared. Omit the 's and the :s are invalid.
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Jan 9, 2010
i have invoice registration form bind to a bindingnavigator and bindingsource. when i enter data and save,the data from the total text box field and the item combobox are not saved. the combobox is bind to a datasource from item table. the value member is set to item id and the display member to item name. i checked the databinding property but it is exactly the same as others.
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Jan 13, 2010
I have an invoice form bind to a bindingsource and bindingnavigator. I use the bindingnavigator to add and save records. But I can's save data from an item combobox and total text box. The item combobox's datasource is set from the item table. It's value member is set to item id and its display member to item name. but when i hit save, the data for the item value of the invoice table is not saved.
The total text box is also a calculated value from quantity and unit price text box. at the text_change event of both unit price and quantity text box i have this code total.text = quantity.text * unitprice.text The data from the total text box is not saved also. What could be the problem with this two fields. I checked their data binding property but it is exactly the same as the others.
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Oct 1, 2010
I am developing a Winform Program in visual basic and I am using Access Tables. I want to use a bindingsource filter to do a search on Stock descriptions. I am using this but it doesn't seem to be working
Me.StockBindingSource.Filter = "ITEMNAME LIKE '%" & SearchTextBox.Text & "%' AND [Supplier1 Price] <> 0 AND [Supplier2 Price] <> 0 AND [Supplier3 Price] <> 0"
What's happening is that I am only seeing products where all 3 suppliers have a price listed that isn't 0. (Products have a zero price when it becomes discontinued or supplier doesn't sell that product but we may have purchasing history against it so it can't be deleted). Therefore we do end up with products where all 3 suppliers have a zero cost. These are the products I don't want this search to return.
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Jun 3, 2008
I have a datagridview1 and search textbox1 on my form On form load I need to fill datagridview1
* with absolute path+filename of certain filetypes like *.jpg,png,gif,bmp
* in a specific directory like Application.StartupPath & "Images"
When user types in search textbox1
* datagridview1 contents need to be continuously filtered to match searchstring
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