VS 2005 Changing Datagridview Values Within The Current Row?
Jan 3, 2011
I have a grid bound to a datatable. The grid has two boolean fields. What I want to happen is, when the user checks one field (or perhaps I change that field's value in code), I want to automatically uncheck the other field. I tried the following code, and it gives me the results I'm looking for, but only after the user leaves the row. I want it to happen when the user clicks on the cell.
Private Sub ComparisonGrid_CellValueChanged(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles ComparisonGrid.CellValueChanged
If e.RowIndex > -1 Then
If e.ColumnIndex = Me.FirstUseColumn.Index Then
In my datagridview, I want to be able to change the value of comboBox1 depending on what the user selects in comboBox2 I had this working correctly, however if I move onto a new line in my gridview and select a different value in the second row it changes the previous row also.In the below code the correct values are generated in the combo boxs, however when I move onto a new line in my datagridview and choose a different value from my comboBox I get this error:
"The Following exception occurred in the DataGridView System.ArgumentException: DataGridViewComboBoxCell value is not valid To replace this default dialog please handle the DataError event." Private Sub Expenses_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load Me.TblCompanyTypeTableAdapter1.Fill(Me.Exp_testDataSet10.tblCompanyType)
We are thinking about changing our current database system, MS Access 2007 front end and MS SQL Server 2005 backend to using a higher level language such as Visual Basic .Net. I wonder if this is the BEST solution for data management? Currently, among others, we have two big database programs that handle more than two hundred users and it's crashed often. That's the reason we think about changing to something that can handle these database programs effectively preferably using MS technology such as .Net.
I have one hour format datetimepicker and other short format datetimepicker. When I select an hour from 1:00 AM to 5:00 AM want to change the current day to the day before. I tryed to - 1 day but doesn't work or maybe isn't the correct way to do it.my error says operator '-' is not defined for types 'Date' and integer
here's my
Dim hora As Date Dim fecha As Date hora = Me.dtpHora.Value fecha = CStr(Me.dtpFecha.Value)
I am having trouble understanding how ado.net works with proposed / current values of data. Can someone please explain the process of a new dataset with data in; a new row added and updated to the live database and then that row modified and updated back to the live database?
This would help me out a lot as I can't seem to get my head around it.PS. Sorry for being a novice. I have googled and I also have the Murach's VB.NET database programming ADO.NET but just can't seem to follow it. Could be because I am an old school developer.
I have a project due tonight and suddenly 2 of my datagridviews are acting funky while the others are fine.
I have 2 tables in an sqlce db. the first is books(id, title, copyright) and the next is publisher(id, name, bookid). I'm writing a vb.net frontend to access the data.
I have data bound datagridviews for both tables. Both have their respective ID columns hidden. The publisher dgv uses a combobox cell style to display the book title in the bookid column. So far so good.
I have suddenly run into a problem where if I have clicked in a cell on the books dgv and then click a cell on another row, the title changes to the id value. The publisher dgv also updates to show the id instead of the title.
It sounds to me like there may be a problem with the booktableadapter or bookbindingsource, but I don't know where to start looking for it. I have a 3rd dgv referencing an unrelated table, and it has no problems. The code for both the working and problematic dgvs are the same (only the control names are different).
i have a datagridview at form1 filled with 2 columns, mailName and callName. upon clicking an edit button, form2 will show with the details of the selected row in the datagridview from form1. how can i pass the values in the selected row from the datagridview to form2? my select statement at form2:
So like this. Textbox1 has this text [URL]. I want it on a button press it will change any urls With Http://www . To http://m . At the end after button press it will be [URL]
Also I need it on button press to change the current url in the webbrowser1 From: [URL] To: [URL]
I created a WCF Service running as a console application. It is doing event listening for my workflow engine.The second application I am trying to do is a WinForm that can monitor the service and return me back the current states of the engine's workersI am able to connect to the service fine, and I verified that my service has values being set when I step through it... however when my monitor makes a call to the service, I am returning values as though it is not being run? (So default values, not current values
Using VB.Net (Windows Application) I have one main form(Data entry form), i creating many form at run time.
Code for creating a multiple form at run time.
Button1 click If IsNothing(frm) OrElse frm.IsDisposed Then newfrm = New frmEntry End If newfrm.Show()
I have popup windows for selcting the value in the Data entry form.Code for selcting the value from popup windows Popup Window code
If e.KeyCode = Keys.Enter Then frmEntry.txtbox1.Text = gridview1.Rows(crRow).Cells("code").Value.ToString().Trim() End If
The above popup window code is working for Data Entry Form, but it is not working for new forms (at run time)When i select the value from popup windows means, it is appearing in frmentry textbox, not in newfrm textbox.Popup windows selected value should appear in current active form.
I have simple columns and their respective sums. However, I exclude 1 particular value from each sum, like so [code]...
Now I need to exclude another value ("Awaiting Progression") from a second column called "PROGRESSION".
Since I already exclude value based on 1 column called CATEGORY, how do I change my =Sum(Code.ExcludeOthers(Fields!CATEGORY.Value,Fields!ACTION_PLAN_NEW.Value)) to exclude a value from the PROGRESSION column if it's = ("Awaiting Progression") ?
i.e. How do I exclude multiple values, depending on values in 2 columns in SSRS 2005?
The out put of the variable count stays at 1 so the output stays at (Pick # 1 of 6) and doesnt increment at all and does not build the OutPut string
'IF The LottoNumber Location Value is 0 in the Array selectedLotto THEN mark it by making the Loacation Value to 1 If selectedLotto(LottoNumber) = 0 Then
I want to loop through a databale and change the values of a specific column in that datatable.eg: the database returns Request_ID, Desc, Date and Status_Ind. The Status_Ind column contains integer values. I dont want to show the integer values to the user. I want to convert that to a string value based on the integer values returned in that columns.
Im trying to check to see if a value of a label changes over time. however I can't seem to get it right.
dim val1 as string dim val2 as string private sub form1_load() dim val1 = label1.text end sub
[Code]...
problem is it will only check it once after ten seconds when the timer is set to 10 seconds i need to to check it every 10 seconds becuase these values display altitude, and if the server freezes the altitudes dont change. I need to make sure they are updated and not frozen.
I'm writing a program to help me understand 3d points and how computers manipulate them to 2d. Every time I run the conversion routine in my program the value I passed to it get's manipulated even though I use the ByVal key word. Here is the code in process order , tell me if I missed something here ?
[Code]...
There is a status box for me to check one of the values :> This is the flow of what I have put together so far. The problem is once I run the program everytime I press the up key to make a call to the GetPoints method the value in MyPoint is changed to reflect the forumula in the getpoints method. I explicitly used ByVal in my variables on the method call so the values in the variable would not be manipulated. I've changed it many times but I can't seem to get the method to run where it does the conversion without manipulating the values in MyPoint. I've done similar things in visual basic .net 2003 , Now I am using the visual basic .net 2008 express edition. I don't if there is a difference in the two or some unknown bug.
My first time and first post here.I am trying to change specific registry key values (to enable fast user shutdown), but I get an error message when I try this. I will hopefully be implementing a number of the TweakUI functions, but in my own representation.
[Code]...
and I get the following error message:
"The specified RegistryKeyPermissionCheck value is invalid. Parameter name: mode" (I've changed the Security.AccessControl options but none of them are suitable)
I've only been using VB 2008 for about 4 months now, and had no coding expereince prior to this
I have an array of structs and each struct contains values for the checkboxes. I am trying to display the checkbox values contained within a particular struct.
MyStruct is an array of structs which has a values for the checkboxes
ChkBoxCol is the collection of check boxes for the form.
I am iterating through the collection as follows:
[Code]...
What I am noticing is that if the check boxes are checked in order (checkbox 1, 2, 3, 4...etc) the code works fine and the values are displayed correctly in the form. However, if the check boxes are not checked in order (4, 5, 7...etc) the code does not write the values of the check boxes and instead keeps them blank. I just need to display the values for the check boxes for a specific struct.
I am working on a way to change either the x or y value of a point and am getting an error while doing so. the code i am using to do this is the following:pts(currentNo - 2).X = pts(currentNo - 2).X - 10pts is a list of Points and currentNo is merely a count that im using to track where i am in the list. I am getting the following error
I bound datagridview to bindingsource. The bindingsource has its datasource a collection Called Rates which is a collection of Rate items. The rate object has a property called VALUE. I need the user to be able to edit different values for the collection; However, on the datagridview, i need to keep displaying on one column called OldValue the existing Rate value before the change while allowing the user to edit that value in a second column called NewValue.
In other terms, One colum OldValue will keep the existing values from the DB before being edited by the user, this column OldValue is readonly. Another column NewValue will display, the 1st time, the old value from the DB (similar to OldValue when we do the Fetch from the DB), but it`s editable column, so the user can modify each value in the column NewValue without overriding OldValue cells. For now, I bound both columns OldValue and NewValue to the same property VALUE of the Rate object,
I am working on a project where my class has to execute VB code provided by the user, to make it simple I am trying to recreate my own eval function, I am using the following code I found on the web to do this task.
The problem with code is that it can't access any variables or there values, so I have decided to get the variable names, there values types and there types dynamically and recreate them in the class that is being created dynamically. Any way to get the variable names there types and values in the current class or method, so that I can recreate them, and execute the user passed code, the user knows what variables are in the current class or method and there datatypes but he don't know there values as they may have changed, so he can't initialize them. Is there a way to do this, this code will be called in an asp.net page on page_load event, the code passed by the user is stored in the variable vbCode that is passed as a parameter.
I'm trying to make the combobox get suggested values from a website using the current keyword they have in the box already. For example if I have O, it will show up values that the website has returned with O. The problem is how can I make it work where whatever I type into the combobox, it will get the values, set the datasource and make it show up. So far I have this:The problem is whenever I type something, I cannot get it to set it to the new datasource without the comboxbox becoming the first value in the data source.
Dim pop As New List(Of String) pop.Add("Koolaid") pop.Add("kIMKY") pop.Add("KoolPaid") ComboBox1.DataSource = New BindingSource(pop, Nothing)
I have a web.config file on my computer.There are alot of things i need to change and add in the file. (I am actually working with my SharePoint web.config file)Can i do this with a Batch file, if so how would i do it. Or how would i do it using VB.NET or C# code? Edit: i need to create a program to alter a web.config of lets say i web.config laying on my deskop and not the actual web.config of my project
How to set up a Chart using the new MS Chart control. I want to be able to populate the data via SQL because the user will be able to dynamically change the values via drop downs. The format of the data will be the same (Qty, Time Period) but the Focus of that data will change. I'm honestly not sure where to start, I can draw the chart but I have no idea how to populate it with data via code so it can be changed dynamically. VBE 2010, and I'm hitting an AccessDB
I have been dabbling in VB before and i played around wiht linq to sql back then but im wondering what i should go with here.I need to have a list of people.. They should all have their own id nr.
The people in the list are supposed to keep a record of values changing over time with a datetime stamp. (In my case its numbers from a test outcome of blood)You have to be able to add people and delete people. All records will be deleted too.A Chart will read information from the records and display changes over time in chart.I was thinking of doing it with linq to sql and i was kinda aiming at Creating datatables with id names from the script
Havent found a way of creating datatables from a script though..I was hoping for a solution like that.. And i was hoping id be able to search databasetable names.
I have a form which has a user control in it added dynamically. How can I change the values in that dynamically generated user control? All my functions are in a module and I will just call them in main form. So in module how can I find that user control and change its values? I tried writing a function in user control form. Like it has 10 txt box and I tried to pass a structure as argument in that user control form but I am unable to do so. when I tried to declare the structure outside function parameter in user control form it works well but not as function parameter..
I want to programatically delete some pixels that are unused in order to reduce the image size.Can anyone tell me how to reduce the size of an image file without changing the pixels values..
I am making my project for this semester. I am making "System monitoring Tool" so i have make a GUI and also get the all parameters but one thing missing I have tried to find from different places but not found that is the "continues line" that represents the changing values of CPU usage along time. same like "windows task manager" shows.
I need some help keeping a DataGridView at the current row while being updated. I have about 140 rows of data that is being update with engineering data every 100 msec.
If the user is looking at a row 80, the slider is in the middle, when my LoadDt() runs to update with the latest data, the grid jumps back to row 1. I tried getting the first cell displayed and setting that back when done but this is not working.[code]...
