Chart Setup - Dynamically Changing Values Via Dropdown
Mar 7, 2011
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
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Jun 12, 2012
I need to create a sample question types web form in VB.NET which allow user to the following:he user selects the control type from dropdown (TextBox, RadioButton, ListBox etc). Generate controls dynamically based on the control type on the webform.It will always show the TextBox (where user writes the question) and (generated control - TextBox, RadioButton, ListBox etc) and save those values to the database.
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Mar 23, 2012
How do I dynamically add or remove a chart series on a WinForm. To date all my MS Charting experience has been dealing with ASP.Net charts with static sql select statment to a SQL Database. In the new project that I have been assigned I have different cities with different amounts of points that they want monitored. One city might have 3 an another might have 5 or 7 so I can't hard code the amount of series that I need. It needs to be set up so the amount of series can be flexible depending on the city selected and then display those points on the chart.
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Sep 3, 2009
I have a list of servers in the first dropdown. I want to get list of all databases in the second dropdown depending on the server selected in the first dropdown.
For this I need to query each server while selecting the server.
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Feb 27, 2009
how to setup a dropdown list over the gridview when I am in the editing mode? I would like use the code behind to bind the data after assigning to the data source... I am using Visual Studio 2008 ...
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Jan 25, 2011
I have a toolstrip along the top of my program. There is a right aligned drop down button that displays a menu. I have a 2 monitor system, and for some reason, the menu wants to open up on the other screen - the screen the program isn't on. How can I keep this menu on the proper screen?
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Mar 4, 2010
So say I have a dropdown control, and after the user uses the drop down, I want a checkbox and label to appear, AJAX style, without a full postback.
How can I implement something like this? Examples of code (or links to them) would be great.
I played around with this some using updatepanels but I can't get it working right...
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May 12, 2011
I have a pair of dropdown lists, they are linked in the sense that in it is basically a 2-d array. I have a list of accounts, and a list of domains for each account. So based on which account the user selects from the dropdown, I need to populate the domain list with the appropriate selections. Is there a way I can do this without [code]...
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Nov 20, 2009
I have a DataGridViewComboBoxColumn, and want to switch the style of the ComboBox control between DropDownList and DropDown (mainly for the text field editing capability). I'd like to do this on a row-by-row basis (at the DataGridViewComboBoxCell level).How would I do that programatically? Or maybe a different way of asking: How do I access the ComboBox control given an object of type DataGridViewComboBoxCell?
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Mar 27, 2008
I'm trying to make my datagrids datasource change when you select a particular item from a drop down menu but all I get is blank cells! any ideas? I don't think it is changing the colums property automatically either.
If chooseType.Text = "Add / Edit Players" Then
updateDB.DataSource = PlayersBindingSource
[code].....
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May 3, 2012
I have a GRIDVIEW with columns, one of which contains a CSV of possible values for the dropdown that must appear on each row.
Private Sub GridViewParameters_RowDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewRowEventArgs) Handles GridViewParameters.RowDataBound
If e.Row.RowType = DataControlRowType.DataRow Then[code].....
Depending on whether the type of control is a dropdown, textbox, or check box (feined in the table) it hides or shows the relevant control type. If it is a dropdown it needs to get its values from a CSV in a corresponding column. I have a SP that returns a these in table form if passed the id of the relevant row.How do I get that is from the gridview to pass to the drop down and load it correctly?
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Oct 21, 2011
I have three dropdowns, which are all loaded in the same function. How do I grey out dropdown 2 & 3? I want them to activate if a certain choice is made on dropdown 1.
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May 25, 2011
Is it possible to select a value of a drop down by its dynamic index that is returning from another function whereas selectindex = 2 (generated dynamically)
selenium.Select(Id, "index = SelectIndex")
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May 31, 2009
how I can get this to work. I want to distinguish dropdown controls inside a repeater control. I understand now about the lifecyle and how the buffer is already writen, but what are my alternatives? Here is what happens
Code File
Dim repeatTimes((TotalAdInsured - 1)) As Integer
myRepeater.DataSource = repeatTimes
myRepeater.DataBind()
[Code]....
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Mar 10, 2010
I want to Update Column of a Table where ColumnName will be DropDown.SelectedValue.Example: A set of RECORDS will be displayed from a Customer Table where CUstNo ='1234' and City= 'Chicago' and Grade ='B' Once displayed I want to Update the grade to 'A' of all those customers from the above criteria. In My case I have like 100 Columns, so in where Clause Column Names will be selected from a DaropDown.In My Query, Update Customer SET ColumnName= 'some value' where ColumnName ='ActualValue'So how can I pass the ColumnName which is Dropdown Selected Value. I believe I can't give as Update Customer SET DropDown.SelectedValue = 'some value' where DropDown.SelectedValue ='ActualValue'
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Feb 2, 2009
I have table .I need to create a Organization chart dynamically using activex or Visio components and display it in my appplacation usingr vb.net programming
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May 6, 2011
I am dynamically creating and adding dropdown controls to DevExpress XtraGrid.That works fine and I can add a dropdown control to any column I wish.My main problem is that I need to have the first element in the dropdown control displayed. But after I dynamically add 3 dropdown controls to the grid, only the last one has the element displayed. The previous two do not.Although, I add the elements
this is what the code looks like:
vb.net
Dim column as DevExpress.XtraGrid.RepositoryItem.GridLookupEdit
For i as Integer = 0 to dsSometing.Tables(0).Rows.Count - 1
column = New DevExpress.XtraGrid.RepositoryItem.GridLookUp
[code]....
The code will go tru and add lets say 3 dropdown controls, set their .DataSource to datasets I need, but it will only show .NullText of the last added control.
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Aug 2, 2011
I have an Excel template that contains numerous pre-defined charts and a program that opens this template and collects data used to populate the charts. This works great but I now want to adjust the series length so that the charts only used the data collected (not a range of 32000). I'm trying to iterate through the charts and determine the range for each series of each chart but not having much luck. The snippet below allows me to see the xvalues but does not return any information as to where this data is located. Does anyone know how to extract the range for each series in a chart?
[Code]...
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Jan 29, 2010
In my application I use Linq to SQL to communicate with my SQL database.To setup a connection I added a Linq to SQL class, selected a database and choosen a SQL table.After this I use the following code for showing SQL data:Using aw As New LinqtoSQLDataContext
Dim Data = From c In aw.TestDatabase_TestTable _
Select c.No, c.Description
DataGridView1.DataSource = Data
End Using
Now the link to the SQL database is hardcoded and the databasename must be used in every Linq-statement.Is it possible to make the link to the SQL database dynamic so I can switch easyily between a test and production database?Can the tablename inside the Linq statements be dynamic too?
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Oct 14, 2011
I have a chart in Excel that I'd like to use a subtitle on. There is no SubTitle Property on the chart object, so I looked in the Excel User interface and found that you can only create a sub-title by using a text box. The text box looks like its associated with the chart, not the worksheet, so how would I access that text box from code?
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May 22, 2009
I'm creating setup using VS2008 and I can able to create. The problem is the setup location is always c:program filesdefault company name.
I can rename that while installing. but, how can I change default company name while creating setup.
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Sep 7, 2011
i have a Chart made in visual designer in vs2010, with some points added like x=3,8,10 Y=2,8,4. Is there any way to extract value for example for x=5 ?
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Mar 21, 2012
I've added a setup and deployment package to my project. When I go to install it the first screen says "Welcome to the setup setup wizard." Obviously, that doesn't look right. I want to change this, but can't figure out where that setting is. How to rename that setting so that it says "Welcome to the Wonderful Program setup wizard" instead?
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Mar 7, 2011
how to do this Also the drop down list in web service..
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Dec 24, 2011
i have a dice program that will find the random numbers according to user input as regards dice and throws required. My problem is when i have to display all the values in a listbox but in a horizontal type, were if a value came out more than once it displays the number and a bar for each time it come out and also at the end show the count of the times the number came out, to have a better idea the final chart needs to be displayed in the following format in a listbox as in the long run the program needs to run in a web application, but i am writing and testing in a window form application, then i will transfer to web application and use session variables and timers to control the output and the graph.
3 ||||||||| - 9
5 ||| - 3
6 ||||||- 6
10 ||||||||| - 9
2 | - 1
My code till now is that i have a class were a roll dice method and a similar values method are kept and from the form in the roll button these two methods are called and the results are shown in two listboxes one for how the roll dice random numbers with duplicates is shown and the other listbox displays only the numbers without duplicates.Also another method for the graph is in the class clsNDie but it seems that i have something wrong it this area?
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Jun 14, 2009
[ProgramFilesFolder][Manufacturer][ProductName][Version] is the Default. i Want to change the programfilesfolder to documents folder.
I already try this:
[DocumentsFolder][Manufacturer][ProductName] but it doesnt work. error in installing the product. ERRROR: "Could not access network location Polongo companyMC"
Iam changing the installation directory because when the application is installed in program files, my database can't add and edit record. having an error something like "operation must need an updateable query" because of that error i tried to install the appl in documents and there n error i'd encountered like when I install it to the program files folder.
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Jun 29, 2011
I am using dropdown list values Bound from data base my code
Public Function get_type() As String
'get type
If IsPostBack = False Then
[Code]......
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Oct 4, 2009
I want to retrieve value from database.........I have a sql table with (Username [Primary Key] , Friends, dob, contact ) columns; table name is MyFriends
Now Code is......
string qry = "select Friends from MyFriends where UserName='hrs'";
da = new SqlDataAdapter(qry, connection);
[code]....
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Jan 8, 2012
My client wanted to have a textbox in the Customer form of the application, which offers the applicable endings to a started street name. He starts to type a street name and the textbox offers a list of streets which start with the char sequence he typed into the textbox. Textboxes have the AutoCompleteCustomSource property and even though a list of common street names will be longer than it could be pre-filled on start, I could just hit a database with a query, populate an AutoCompleteStringCollection and show that to the user.
Now here's the thing: If I make the list populate on every keypress/keydown whatever, the program crashes and throws an AccessViolationException. I've found out that that's because: The control is in the middle of showing the AutoComplete list when at the same time it is being modified, resulting in the crash. When you refresh the Autocomplete List, the control is recreated with new pointers. Keyboard and mouse events (KeyPress, MouseOver, MouseLeave, MouseHover) attempt to reference the old control's pointers which are now invalid in memory causing a memory access violation to occur.
The underlying AutoComplete implementation does not allow for changing the AutoComplete candidate list object once it has been set on a window. To allow changing the list, WinForms destroys the Edit control or ComboBox and recreates it. This causes an exception if the underlying control is destroyed while the AutoComplete window is still use it. I read about this on MSDN, their resolution: Do not modify the AutoComplete candidate list dynamically during key events. I know that you can do this by creating a custom control and such, but can it be done with just pure coding wizardry?
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Feb 1, 2012
I have VB.NET code that is called when the selected tab index of a tab control changes, I am trying to get the code to change the text in a text box to the URL of the web browser control that when the tab changes. I have the code below, however it gives errors:
AddressTextBox.Text = CType(TabControl.SelectedTab.Controls.Item(0), WebBrowser).Url.ToString
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