I have a filter which is applied to a database on a listboxchanged event, and applies the listbox.text as the filter, so for example if the selected item in the list box is 'Terminator 4' then thats the filter. Its set on the listbox selected changed liek this;
[Code]....
I'm trying to filter a dataview using a DataView RowFilter. I want to filter out data based on two date values checked on one column:
Dim dtFuture As Date = DateAdd(DateInterval.Month, 6, Today)
dv.RowFilter = "ValidUntil >" & dtFuture.ToString & "AND ValidUntil > " & Today.ToString
I am getting the error Syntax error: Missing operand after '00' operator..
I write this code for filter BookInfoDateView.RowFilter = "bookname LIKE '%" & TxtBookName.Text & "%'"but i get error massage like: Syntax error: Missing operand after 's' operator.
View 8 RepliesI was going through attempting to filter my second form by the first one (named PickaClient) when I got the following error: Syntax error: Missing operand after 'df24ff5' operator.The line of code which causes this is : PickaClient.ClientsBindingSource.Filter = "ClientsID = " & PickaClient.ClientsIDTextBox.Text
View 6 Repliesi got an error in my code which is [b]Syntax error: Missing operand before '*' [/B]operator. i am using visual studio 2005 and sql 2005 database here i attach the code.In this code i try to use button the search data in database( table name staff) using a column =NAME and text box as user input
private Sub Search_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnsearch.Click
Me.StaffBindingSource.Filter = "NAME = *" & Me.txtsearch.Text & ""
End Sub
Can someone take a look at my "afilter".I am getting an error when I try to read a file.Syntax error: Missing operand after 'Number' operator it works with some files but others perhaps I dont have it written correctly. [code]
View 8 RepliesI'm trying to add a computed column to a datatable that references another column in the datatable. Sometimes the computed column has a mathematical operation applied to it, but in this case I'm just referencing the original column. The code looks like the following:
ReportData.Columns.Add("1_1_US", _
GetType(Single), _
"1_1")
The code isn't actually hard coded as shown above - there are functions that return the values for the first and third parameters - but I checked those and they are returning the expected values and not generating any errors themselves.
The error is thrown when the .Add method is called, and the error states "Syntax error: Missing operand after '_1' operator." It seems to me that it doesn't like the column name, which I suppose I could change and just workaround it at the presentation level. Still, I'm curious. Is this a bug in the .net framework or something? It doesn't mind "1_1" as a column name in the datatable, so why is it having a problem with it in the expression statement?
i got an error in my code which is Syntax error: Missing operand before '*' operator. i am using visual studio 2005 and sql 2005 database here i attach the code.In this code i try to use button the search data in database( table name staff) using a column =NAME and text box as user input
[Code]...
I want to select some rows from a sql express 2005 table. I am using this expression: "Starttime >= " & dtpStart.Value dtpStart is a DateTimePicker But I am getting this error: Syntax error: Missing operand after '14' operator.
View 18 RepliesI am in trouble with publishing my project that uses an embedded database file. I publish my project but when I try to install and run it, it gives me an error as "Unhandled excception occured in your application. Database.accdb file could not be found." I understand that the problem comes from the missing database file. But in the project I assign this file as "content" and I believe that it should copy the file to the required folder that way, right? I also tried to "compile the file" in project but if I make it, visual studio gives an error.
View 11 RepliesI have a datagridview populated from a CSV file in vb.net. I have 2 datepickers, 1 button. see the attached images. Image1->before filtering
[Code]...
I 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 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.
vb
Public Structure ScheduleOwner
Dim _doctorname As String
Dim _description As String
[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."
im using vb.net winform.i want to update a datatable to sqlserver. but before that. i need to check by comparing it to another datatable(same structure but contain new data). i need to insert new data only.
View 4 RepliesHow to filter data from the database to combobox? For example, the database have the data, and i have a combobox, then i want to type the first letter, and the dropdown list comes down that the data have the first letter that i type in the combobox.
View 6 RepliesI have a dataset (WW1Dataset) with one data table(WW1).(database used in an access database) I'm trying to filter the dataset e.g a user wants to filter by a chosen surname (SurnameTextBox.text) so the datset is filtered to display only those records wherethe surname column in the dataset matches SurnameTextBox.text.
View 1 RepliesI have a datagridview that is filled as follows:
Private Sub cmdExecuteSproc(ByVal SO_Number As String, ByVal Prev_SO_Number As String)
Dim spSteps As New SqlCommand("sproc_shop_order_get_recipe1", cnPMSQL)
spSteps.Parameters.AddWithValue("@int_shop_order", SO_Number)
spSteps.Parameters.AddWithValue("@int_prev_so", Prev_SO_Number)
spSteps.CommandType = CommandType.StoredProcedure
[Code]...
On the form, I have combobox1, combobox2, datagridview, and a listbox. Basically, combobox2 displays a list of street names. My problem is that once the user selects a street name from combobox2, the listbox should be populated with only the customers' names who lives on that street. How can I go about populating a listbox with just the customer names? Originally, the street names include the house numbers as well. For example, "5100 E Dublin Granville Rd". Fortunately, I figured out how to display ONLY the street names ('E Dublin Granville Rd') and not the full street address to the combobox by adding the following public property below. However, I am still encountering a problem because now the combobox has duplicates of the same street name![code]
View 3 RepliesI've got grid data and I want to allow the user to filter it.I'm curious what controls or methods you all have used successfully to ask the user for this type of information.I see EXCEL allows you to click a header - ask for a filter - and get arrows in the heading to allow you to see a DISTINCT list with CHECK BOXES.Google Docs spreadsheet does almost the exact same thing.
View 3 RepliesVS 2010 ComboBox filtering of db table names
View 4 RepliesBeen trying to solve this for the past few days It's doing my head in I have just moved from a legacy version of VB to VS 2010. I'm happy with SQL statements.I have placed a DataGridView on a form and it impressively sets up a grid view of the data. Now I want to provide a txtSearch texbox and a btnFind button to filter the records by the search string entered into txtSearch.In the good old days you would create an SQL satement and refresh the DataSource property of the data control and all would be well - easy, quick and effective.
In this new environment I am totally lost = simply don't know how to refresh the DataGridView with records resulting from a dynamically generated SQL statement - and I don't want to use stored procedures at the moment (using Access).So, from the Click even of btnFind I can create the SQL statement but how do I implement it
I created a database in my project, and added a table and some columns to it. Now after making several changes to the program I decided to add some more columns, but for some reason those new columns don't show up in the SQL query builder or the database explorer. I realize that this is an oversimplified explanation
View 4 RepliesDoes anyone know why there would be no option to create a database project in VS 2008? In the New Project dialog, under Project Types I have no node for Database Projects. I've looked under Other Project Types as well. Every tutorial I read says this option should be in one of those two places, but not for me :-( I do have SQL 2005 installed on this machine.
View 2 RepliesI have installed VB.NET express 2010 version and I am trying to create a new dll file for use in my SSIS packages. When I try to write the code, the VS environment tells me that I dont have the Microsoft.SqlServer.Dts.Runtime Namespace. What can I do to make this possible?
I looked around on internet but couldn't find anything substantial. I also have BIDS 2008 which I use to create packages. I cannot uninstall that because I have some work to do on a daily basis.
I am working with a .csv file that is generated from a Java-based application. It mainly contains contact information. I can see the data when I open it in Notepad, Excel, and Access. However, when I attempt to read the data file in using the following code, I get blank data. I accidentally discovered that if I open the .csv in Excel and then save the file, my program will read it in perfectly.
MrWrightAZ
Using MyReader As New Microsoft.VisualBasic.FileIO.TextFieldParser("C:GAS_ReportMembership.csv")
MyReader.TextFieldType = FileIO.FieldType.Delimited
MyReader.SetDelimiters(",")
[code]....
i am just developing a library management system as one of my project. i using vb.net 2010 and the MS Access 2007 as back end. when i save some records into my database through my application it is correctly saved and i confirmed it through opening the relevant table in the database. but when i restart the application all the entered data were missing.
View 1 RepliesWhen I build my project I get a compile error stating "Could not locate the manifest signing certificate in the certificate store". This is a new one to me and I have no idea how to solve it.
View 1 RepliesI want a button that when you click at it, It searchs for a line that has brackets that are'nt closed, and then ighlights the error.Like, I have; So the (Dog Which should be for example (Dog). Then, I want it to highlight it so the user can see his error, and show a notifyicon on it.
View 4 RepliesI have a class library that is referenced by several other class libraries along with the main program. About two weeks back, I made a change to one of the classes in that base library, which is used as an argument for some events. Since that time, I have been testing code. Today, after a couple more tests, I started getting this exception. It is indicating a field is missing, which was renamed in that change about two weeks ago. The exact code that is raising the exception is code that I have run a couple dozen times in the intervening time, and it has always worked.I have tried everything I can think of, including deleting the bin and obj folders of every module that could be in any way related to this issue, such that the whole thing was rebuilt. I have removed the references and re-added them. Nothing worked. Code that has run fine for weeks has decided that it wants a version of an object that has not existed for weeks.
This problem arose immediately after a different problem, so the two might well be related. The other problem was that, while stepping through code, the IDE decided that one of the code pages was different from when it was last loaded. I get that a fair amount, and solving it is fairly routine. It generally means that I am stepping through code in a dll, and inadvertently tried to fix a bug in that code, rather than in the dll itself. Now it no longer matters. I can't get to that code page, nor can I get to anything else in that dll. It is acting like it has sponaneously decided to revert two weeks back in time, and use that source code for debugging, despite any attempt I make to bring it up to modern times.
I'm working on a grid of cells that is something like a DataGridView, but not really. The two are close enough that you can picture a DGV for the purpose of this question. What is actually there (and this is true for actual DGVs) is a set of cells drawn on the screen with a couple scrollbars for vertical and horizontal scrolling which are only drawn if there is too much data to show in the visible cells. There aren't more cells than the ones that are visible, so when you scroll the scroll bar, it looks like new cells are being displayed, but what is actually happening is that the existing cells are just being filled with different data depending on the position of the scrollbar. The key observation is that the set of controls displayed in the grid is always the same (unless the grid is re-sized, but that's not relevant to this issue). The appearance of those controls can change, but the controls themselves do not.
One of the features I am adding is the ability to drag-copy data similar to how Excel works. In my case, if you click on a cell, then drag outward (move the mouse while holding the button down), all the cells in the selection rectangle are tinted green. This works nicely. Some of the cells are enabled, while others are disabled. If the drag selection includes disabled cells, those are not tinted. Only enabled cells can be selected, though a drag can cover disabled cells. The relevant point here is that some cells are enabled and some are disabled.
The feature that I am adding is the ability to do drag selection beyond the visible edge of the grid. The grid is a monthly calendar, and I simply can't get 31 cells onto even a wide-format screen. What I am trying to do is allow the user to do drag-copy onto days that are not currently visible. The way I do this, the user clicks in a cell, then drags out to the border, at which point the grid scrolls (the scrollbars move, and the contents of the cells is updated as a result of the changes to the scrollbar value). This is largely working.
The way I handle the selection is that when the user presses the mouse button while over a cell, a flag is set to indicate that the button was pressed, and the current cell is recorded (so that I know where I started from). MouseMove events are used to figure out what new cells the user has visited, and set the selection area based on whatever is under the rectangle described by the initial click point and the current point. Lastly, when the user releases the mouse button, the MouseUp event initiates the actual copy. At that event, I know that the user is done with that copy action. Therefore, the MouseUp event is kind of critical, and therein lies the problem.
As I mentioned, some of the cells are disabled and some are enabled. Disabled controls don't raise events. If I click on a cell, it HAS to be enabled, but that's fine. The problem is that if I then move the mouse in such a fashion that the grid scrolls such that the cell that I had initially clicked on is no longer enabled, then the cell doesn't raise events any more, and the MouseMove and MouseUp events stop happening.I only see one viable solution, which is to not toggle the enabled state of the grid cells. Instead, I would have to have to add a custom property that would make the control act and look disabled as far as the user was concerned, but it wouldn't be disabled as far as the program was concerned such that it would keep raising mouse events. This would be pretty rough, since I would need to prevent the control from appearing to have focus even though it technically would have focus
