I would like to know how to filter out system tables and only return user tables .when i run the code it displays lists of system tables with user tables list in combobox.I have just gotten into vb.net and have tried few ways to do this but dont understand well enough.
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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.
View 1 RepliesI am getting the error "system.argumentException; Column ' test_id2' does not belong to table Table. At System.Data.GetDataColumn( string columnname0 at system.data.datarow.get_item(string columnName).
This error is occuring right after I set the parametervalues in the report object of the Crystal report.(Note this a visual basic.net 2005 windows form application.)
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim cryRpt As New ReportDocument
Dim sql As String
[code]....
The value for the first parameter @Parm_1d1 value to the crystal report version 11 is correct. However, when trying to access the second @Parm_1d2 parameter ,the values past to the crystal report is not correct.
I'm working on a project and my boss insists I use a DataGrid for this. The grid holds information for work orders, one of the cols has a check box in it. I need the user to be able to select any number of those checkboxes/rows and then return a value to the table "stamping" that users ID. This is what I have so far to get the grids populated... I'm using 2005 with a 2000 Access Database if that helps. Though this will be changed to SQL Server once we get it working (yay more work)...
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I removed the code from the second grid to make it easier to read, obviously once I can get one to work the second shouldn't be as much trouble.
This is the check box: dgvNewBiz.Columns(1).HeaderText = "Select"At this point if someone knows how to get it to recognize the click event of the check box and pass that row info to a variable that would be super as I'm sure I could probably figure it out from there.
I want to add a new table in my accdb and copy the content tfrom an existing table into the new one.
Is there an easy way to do this?
I have a data table whose one column is related to a column of another table. I have a listbox in a form which shows a column (which is sorted by another column value by ORDER clause) of the parent table and other columns are in textboxes. The child table is represented by a datagrid. When I add a new item in parent table and click save, the newly created item is listed at the bottom of the listbox violating my ORDER clause. When I wrote some codes to fill data again after updating, it shows an error message[code]...
View 3 RepliesI have a dataset filled with content from a XML file:[code]Now I want to have the most recent date of each asset written to a SQL database. At this moment i write al the records in the database, where I sort the dataset on Date, so the asset with the most current date is writeen to the database. Is it possible to do a 'filter' of the data first before writing to the database?I can use Max(date) is SQL to filter the correct records, but I want to do it right from the start.
View 6 RepliesI guess I just cant seem understand this correctly
Dim StatusClosed As String = Form11.Closed_Code.Text ' usually = S or ClosedSale or Closed Sale
Dim SubjId As String = Form10.add_Num_txt.Text ' usually = StreetName or Street Name or SN[code]....
If SubjId is StreetNumber or SN its ok , if its Street Number with the space I get error
If I place a ' around {3} in my afilter line then it works if the SubjId is Street Number but not StreetNumber or SN
When I use a command such as:
Me
.TableAdapter.Fill(Me.SomeDataSet.Table)
I am going out to the database, gathering the requested information and filling the dataset. Therefore, everytime I add a query to a table adapter, it is also going to the database to get the information. So, my question is, how do I fill a table in a data set with all the records in the database table and then, filter the information I've already collected in the dataset without going back out to the database again?
I have mp3 database (access). I want to filter table and show 100 most played songs. There is a field "PlayCount" which is increased every time the song is played. I know how to use TOP clause, but there is a problem when I want to sort results in descending order by "PlayCount" .here is the sql query:
SELECT TOP 100 * FROM Database ORDER BY PlayCount DESC this query returns 120 results. If I use "TOP 200" it will return 278 results. But everything works fine if I use ORDER BY Filename.
What code I need to search a whole table (not just one column). I can already search a column but how do I search the whole table for a string .
source1.DataSource = ds.Tables(listboxselect)
Grid.DataSource = source1
source1.Filter = "id = " & searchtxt.Text
I am very new to vb.net, just wonder can I use vb.net to do something like this : I have alphabet from [A][B]...to [z]. When A is clicked, product name that start with "A" and it's price will shown in a table below.
View 1 RepliesHow can I combine the filter conditions in a Table in ReportViewer? Here is a screenshot [URL]
I want to do like this;
if (Expr3.Value = 0) or (Expr3.Value = 3) or (Expr3.Value = 6) or (Expr3.Value = 4 and Vadeli.Value = True)
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
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I am a newbee in vb.net 2008 i am making a simple inventory system.now my problem is i want to get the filter earliest date in my data table and put it to a textbox..
ex.
Product Name Expiration Date
Paracetamol 06/01/2011
amoxicillin 08/12/2011
Mefinamic 12/1/2011
I want to filter the earliest date "06/01/2011" and put it to textbox.
How do I copy a table to another table without overwriting the contents of the second table?
View 2 RepliesI'm doing a simple linq request like this:
Dim r = (From p In db.Product _
Where p.Product_ID = ProductID _
Select p)[code].....
My problem is eventhought the request return an empty table (I tried with a count too) it consider the table as not empty and execute the code inside the "if"...
I want to return the top 5 records of a table in a dataset for datagrid view. The following does not work.
DataGridView.DataSource = DS.Tables("TABLENAME").Select("SELECT TOP 5")
There are two combo boxes taking user's inputs to return a record in an Access Database satisfying the requirements. This procedure is controlled by a button. However, when it reads "da.Fill(dt, "NETP_ParaList")". It reports error saying that "ArgumentException was unhandled; Object is not an ADODB.RecordSet or an ADODB.Record. Parameter name: adodb" I have no idea what this talking about.
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I am new to development and I'm using VB.NET to build an application for my kids. I want to teach them how to manage their money so I've decided to build them an application. I have a database table which stores all transactions aswell as the userid (users have to login). When one of my kids opens his bank account, I have got it so that it only shows his transactions with date and bank account balance and no-one elses. My question is, how can I retrieve the latest balance and display it in a label at the top of the form?
View 3 RepliesI am retrieving the Max Value of a column using the Table.Compute Method
Max Value
dtlist.Rows(i)("Value") = dtsold.Compute("Max(ClosePrice)", "Distance <= " & Dt & " And BuildingSize<= " & GLA & "")
I would like to also return another value of that same record
How do I identify the record that is the Max Value?
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.
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I 'd like to enable the user to apply a custom filter to a System.Data.DataTable.At the moment I have a very simple function like this:
Dim result = dataTable.Select(txtUserInput.Text)
With the filtered results I'd like to do further operations(e.g. Database Update/Delete).Is an sql injection protection needed or is the "Select" function secure?
//Edit:Can the "select" function be abused to manipulate any data in the datatable, execute code, ...? If the only danger is that this function can return to much/to less data there is no problem. But if the data in the dataset gets corrupted it's a real problem.
I keep getting an error saying "there is an error in your sql syntax." when i use this sql statement:SELECT * FROM gsm_oceanwide_integrationEDIT:To put this in context heres the code im using this query statement in (VB.net):
Dim con As MySqlConnection = New MySqlConnection("Data Source=" & frmLogin.txtserver.Text & ";Database=stratocast;User ID=" & frmLogin.txtusername.Text & ";Password=" & frmLogin.txtpassword.Text & ";")
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I have a Microsoft Access database that I connect to with the Jet Database Engine, using VB.NET. I want to programmatically get all of the column names for a particular table [code]...
Is this possible in Access? If not, what are my options for getting the column names?
I am unable to load the dat into the data Grid. Here is where I keep getting stuck.
dgvOleDb1 = table.Select
dgvOleDb1.DataSource = DataGridViewEditMode.EditProgrammatically
dgvOleDb1.DataSource = ds.Tables(0)
I am confused; I am using VB2010, IBM.iSeries.DB2 on an as400 V5R4. I am trying to establish an OLEDB connection, and return the values from the selected table to a DataGridView. I had one of the admin's make me file named GARBAGE, in the Rprtaccess catalog. In the past, I have been able to connect via access and an ODBC connection. My project is too big for access, and the SQL middleware we have is clunky and not user friendly. This is a program that will generate the SQL statements, specifically the WHERE: clause and populate the datagrid with the selected criteria. In essence I am making a user friendly striped down program, that has variables that are manipulated by the end user, and the rest, referenced tables and libraries are coded.
Imports System.Data.OleDb
Imports System.Exception
Public Class Form11
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I want to draw a table in my print output using the System.Drawing.Printing's Graphics object. I'm trying to use the DrawRectangle to draw my table cells. This requires drawing several rectangles in a row. It should be pretty easy, right? Well it appears that DrawRectangle four parameters are x, y, width, and height. However x and y are integers while width and height are singles. My rectangles are overlapping because the next cell in a row cannot base its x position on the width of the previous rectangle. In other words, the x position and width are different data types and don't use the same scale. How can I calculate the x position of the next cell based on the width of the previous cell?
View 1 RepliesLet's say, I have something like a table in the WebBrowser component, it's not actually a table, because the data organized in flash, but, it's organized like a table, it has like rows and columns. You can see more in the attached file. Can I transform this text organized as table into DataGridView or some another tool that serves as table. like_a_table.JPG
View 3 RepliesI have a large form that is set up from master-detail datasets in Visual Studio 2008.I havene master table with a large amount of detail tables. Several of the detail tables also have detail tables linked.Now I need to add a master table that sits on top of my existing master table making it a detail table.
View 7 RepliesI have a login form that consists of 2 text boxes: txtUser, txtPass. Now these are not bound to any data table & I don't what them to be bound. When a new user enters his user name & password, I want to add these on a data table that has two columns: User, Pass. Data table information: Data Source = Login.accdb, Data table = LoginTable, Connection = LoginCn. I use visual basic 2010. So how do I do this?
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