I am trying to add a checkbox to a toolstrip using the msdn sample of adding a datetime control [URL]...
Protected Overrides Sub OnUnsubscribeControlEvents(ByVal c As Control)
Call the base method so the basic events are unsubscribed.
MyBase.OnUnsubscribeControlEvents(c)
Cast the control to a MonthCalendar control.
[Code]...
When a user make a program in visual basic, for example, can he/she copy and use some of the code samples provided in the MSDN Library? Is one totally free to use such code in one's programs, and even allowed to sell software containing such sample code, or does one have to massively modify it so that it resembles little of the original.
View 3 RepliesThere is a response to this question using C# - I am looking for a VB answer and the C# code is too deep for me. I have a custom user control and I have a toolstrip on it. I have certain default buttons on the toolstrip, but I want the user to be able to add additional buttons at design time. I exposed the Toolstrip.Items collection in a public property. I can open the collections editor in design time, but I cannot edit the collection.
View 1 RepliesI am assigning a 'ds' dataset to datagrid.In addition to that I want to add new column with check boxes.That new column will be first column of datagrid. Currently I am using below code,
DataGrid1.DataSource = dsResult.Tables("Result")
Result table has 4 column....in addtion to that i want to column "Selection" with check boxes
I know how to add a item(checkbox) to a toolstrip dynamically, but I want to add a checkbox which is exists in a form. I've tried using the code
[Code]...
but this makes the already existing checkbox, go to the top left of screen and when the toolstrip is click it appears. So I want to add the checkbox to the menu, without going to top left corner,
i added a toolstrip in my form,actually on adding a button on the toolstrip this appears but actually i want this print image.
View 3 RepliesI am referring to this document on MSDN. I understand what ".BeginInvoke" does, however looking at the example code on the document.[code]The delegate myDelegate (and the DelegateMethod) accepts a control and a string, but, at the .BeginInvoke, a Label control is passed and an array.[code]Shouldn't a string be passed instead of the array? Am I missing something?
View 2 RepliesI get a message, "The MSDN collection does not exist. reinstall MSDN." When I try to access any of the HELP features of Visual Basic 6.0. I do not have an install disc for this. Is there a download or a place I can get this?
View 7 RepliesI'm looking for a control like the image bellow, treeview combined with a listview, and with editable cells.does someone have a sample code or some information on how can i do this?
View 7 RepliesI am trying the following code and getting the sql date time overflow exception.....The problem lies in the Gold part...rest to i.e. Silver and Premium work fine....When in Gold part I try to add certain number of months to a date time field I don't know what action is performed as when i check it through Message box the ren_date has value "12:00:00 AM" rather than the new date value after adding 6 months in mem_date value....
[Code]...
I have created a Custom control, containing 4 masked text boxes.and most times when i build it, i get a error: "InvalidArgument=Value of '-2147483648' is not valid for row position.' What is it? i searched MSDN, it looks like one of the SQL errors. How can this happen, i didn't use SQL.Edit: i fixed this tool strip problem. seems that i put visible to false unknowingly. I also have a problem with my Tool strip. The tool strip on the top works well, but the one i placed in a table layout panel, is missing from view, it only appears in Design view when i select it from the bottom strip.
View 4 RepliesI really want to make use of the toolstrip and databinding but these two technologies keep conflicting with each other. I think the root cause is something to with the fact that the toolstrip buttons don't recieve focus in the normal way.
I invite you to try the following:-
1. Create a form and put some text boxes a tool strip with a save button on it.
2. Write a query or sproc to get a datatable back and bind your text boxes to the field in the datatable.
3. In the code behind your Save ToolStripButton put some code that makes an arbitrary change to a field on the dataset (it doesn't matter whther this field is bound to a text box or not). eg:-
m_DataTable.Rows(0).Item("CommissionRatePerc") = "0.0000"
4. Put a breakpoint in the save and run the form.
5. Make some changes in the text boxes. Do not leave the last text box but rather click save while a text box whose contents you have edited still has focus.
6. When your code hits the breakpoint, query the value of the data table field that is bound to the text box you were editing when you clicked save - it will still contain the unedited value. Unless you do something about it that unedited value is going to get saved back to your DB.
We did get around this problem by explicetely setting the focus to another control on the form before saving. That worked most of the time because it prompts the text box to flush it's value back to the datatable (nb EndEdit does not work, although you'd have expected it to). However, and this is the reason I suggested you add a line of code that changed a value in the underlying datatable in step 3, if you change a value in code in this way before the value from the text box get's flushed back then it doesn't seem to matter what you do, the user's current edit is simply lost. They will still show in the text box, though, leading your user to believe that the change has been committed when it hasn't. Our final solution is that we never ever change a value in the adtaset in the code behind our toolstrip buttons. That's working but it's a pretty big restriction.
I am refreshing a form, and I want to assure the checkboxes are cleared when refreshing. I can clear the textboxes and masked textboxes, but cannot figure out to revert the checkbox back to the UnChecked state.
[Code]....
I'm adding a DateTime DataColumn to a DataTable like this:
Dim colDate As DataColumn = New DataColumn("Date")
colDate.DataType = System.Type.GetType("System.DateTime")
dt.Columns.Add(colDate)
Then when I try to add it to my datatable, if the value is Nothing I get an error saying string was not recognized as a valid DateTime. I'm having trouble getting this to work.
I want to load default system Colors with Toolstrip mbobox control. not only color name i want to load fill color with small recta ngle.
View 1 RepliesIm trying to add a checkbox to a gridview so that users can select multiple items, but the checkbox is not showing up. Here is my code below. I dont have datafield b/c its tie into a particular column.
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False">
<Columns>
<asp:CheckBoxField HeaderText="SELECT" />
[code].....
If CheckBox1.Checked = True Then
Try
cn = New SqlConnection("server=localhost;database=attendance1;uid=sa;password=;")
cn.Open()
[CODE]..........
If both the textboxes are filled with time then it is saved into table...but if checkbox in not checked then in that case it shows error...it's due to datetime datatype of both the columns of table....how can enter"off" when checkbox in not checked?
Have a unbound Datagridview with first column set as a checkbox and second column just has text.When adding a row the checkbox does not show, what am I doing wrong.Code to add Row:
DataGridView2.Rows.Add(False, FolderBrowserDialog1.SelectedPath)
The code that adds the rows also saves to a file and then there is seperate code to load datagridview at the start of the programme.If I close and reopen programme it displays the checkboxes.
objdataAdapter.SelectCommand = New SqlCommand()
objdataAdapter.SelectCommand.Connection = objconnection
objdataAdapter.SelectCommand.CommandText = "Select SerialNumber, EmailAddress, Results FROM Email WHERE SerialNumber='" & txtCriteria.Text & "'"
[code]....
What I want to do is for every row of data in the datagridview, i want to add a column for checkbox. The checkbox will be enabled or disabled based on the value found in the field results. The first time I am pressing the button, it works fine. But the second time i query, it keeps adding another checkbox to the same row. Even for the nth time. Everytime i press the button, a checkbox is added. I just want one checkbox every time i query the dataset.
So far I have made a program that can find all the factors of a number (e.g type in 24 and you'll get 1 * 24, 2*12, 3*8, 4*6,). What I would like to do now is add a check box (called Show_Prime_Factors_chk) that when checked it will also show all the prime factors below all the normal factors.
View 2 RepliesI just want to ask the following infor from you in relation to gridview... I have 3 Grids,
Grid A
Grid B
Grid C
Grid a has already a data but aside from the data in my grid A I want to add another column for a checkBox. Next, when the checkbox is check and I hit the button "Transfer" the row in the grid in where the additional column checkbox has been check will be transfer to grid B and the remaining data will be move to Grid C?
I have a datagridview that I've added a checkbox column to. When I preview my data without the checkbox it works fine. when I run the program and try to load the datatable, I get a data error. I'm not sure what may be causing this. Where can I look to figure out what's causing this error?
View 1 RepliesWorking with a form that has a menu, toolstrip and Crystal Viewer control. I cannot seem to get the viewer to maximize properly without hiding the toolbar of the Crystal Control behind the menu and toolstrip. I've played with the options of Dock and Alignment, as well as autosize and I just can't get it to work.So do I need to handle the sizing myself to do this and position the control where I need it?
View 2 RepliesI am trying to add a checkbox column to a DataGridView in a simple window forms application.
I am pulling back some data from a database using ADO.NET, putting into a datatable, and then setting the datagridview datasource to the datatable. I then want to add a checkbox column as the second column. So far I have this code that seems to work:
' Code here to connect to database
Dim da As New SqlDataAdapter(cmd)
Dim dt As New DataTable
[Code].....
This code 'works' and I get MyDataGridView to show the data with the checkbox column in the correct position in the table.
However, for some reason, I cannot check any of the check boxes in the DataGridView? I have tried lots of things (e.g.altering the readonly state of the column) but cannot get it to work.
I am working on a little project and am having some issues with a checkbox. I am adding a number of checkboxes to an ASP table via code by adding rows and columns dynamically. This all works fine except for when I go to check them based on loading a preexisting record. For some reason some of the checkboxes are getting set to TRUE when the new row is added to the table. [Code]
View 1 RepliesI am pulling information out of my Access Database and reading to a webpage. I need to add a update, delete, and email function to this page. I am trying to do this with the selection of a check box and buttons for each one. But I am unable to get the delete to do anything but redirect back to the orignal page. For the update I want to be able to pull the info in text boxes and just change the info and click update and it gets changed. I also want to be able to pull their email from the database and put it into a text box to be able to email right from the page. Code for show page and delete page below.
[Code]...
I would like to be able to display null values in a datetime picker control. I am using one datetime picker control for both datadisplay and data entry. when I load the data from the database and if there is no date then the datetime picker control must be blank.
View 3 Repliesi frequently have troubles with the dock property. it seems that either the order of creation or adding to the parent control determines whether or not a control's dock property supersedes another's. e.g. a control with the dockstyle fill will overlap with another docked control on the same parent. does anyone know what the rules are to determine how docking will behave; particularly in dynamically created GUIs?
View 2 RepliesI am trying to store DoteOfBirth from a Calender control in visual studio 2010.
Dim dob As Date = Calendar1.SelectedDate.Date.ToShortDateString()
I wanna save like dd/MM/yyyy without anything else but when i save it it shows like
2012-02-28T00:00:00+00:00
I don't know where to change the format and I don't know how to remove the thing attached to the date. I am writing it in vb.net and saving to xml file.
how to manipulate the dates to determine which date will be 30 days more then the datetime control I have on my form. i need to take the chosen date from the DateTime control, and determine what date it will be in 30 days. Eventually I will use this process to search through the database to print monthly reports.
View 4 Replies