Adding Programmatically A Control On Top Of Others?
Dec 14, 2011
I'm looking for adding a control on top of others controls during runtime.
I read that the only way of playing with the Z-Order of controls is by playing with the order of the controls inside the Form.Controls Collection. I find this solution very weird and weak and I'm looking for an alternative.
Does anyone has an idea? I just want to make some kind of modal dialog that'll show below another user control to notice the user that the user control is currently doing something.
Edit: I tried using Control.BringToFront() but it doesn't work at all.
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Feb 16, 2009
I am adding a TextBox to my asp.net page programatically via a PlaceHolder Control. However when I set the TextMode value to MultiLine I get this error:System.FormatException: Input string was not in a correct format.
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Jul 30, 2010
1. I have a DataGridView box, that is connected to a MySQL database via the 'Data Source'. I am trying to do the datagridview1.rows.add("info here"), however i receive an error i cannot do this programmatically. I DO know the code to post to MySQL via the "insert into" la la la.However, I was curious if I can do this via the datagridview a bit..easier/simpler, such as a "datagridview1.rows.add(stuff)" sorta thing.
2. I am attempting to make a custom control, and as with ANY control, they have their.. settings. Example, a textbox, or label, has so you can set the Text. and color, etc.Others, have it (such as datagridview) have the little icon on the control itself, where you click it, and it opens a small window with settings.
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Apr 26, 2010
how I can add a Month control to appear in the centre screen when I click a button?
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Oct 31, 2010
I am trying to add a datatable to a database. Here's what I've been trying:
Dim newDataTable As DataTable = New DataTable("Example")
VocabularyDataSet.Tables.Add(newDataTable)
SqlDataAdapter1.Fill(VocabularyDataSet.Tables("Example"))
I've tried various incarnations of Fill and Update. But the tables will not save on the database!
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Aug 21, 2009
Is there a way to loop through each constant in the ControlChars module programatically? I want to add each of the enumerated control characters to a combobox control.
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Jul 10, 2010
I'm trying to add a group of four radio buttons to a form. There are other radio buttons so I'm grouping them by placing them on a Panel. However using the below I just get the panel added to the form without the radio buttons... Am I doing something wrong here?
Dim arrRButton(3) As RadioButton
arrRButton(0) = New RadioButton
arrRButton(1) = New RadioButton
[code].....
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May 31, 2011
I have an MDI application, say name of MDI is MDIParent. From form1 I am adding new tab pages to form2. In the first tab of form2 I have generated a ListView by calling a ListViewCreate() function in Load event of form2. I am not able to generate ListView for the new tabs. I tried calling the ListViewCreate() while adding newtab. But, it is not creating listview nor throwing any error.
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Feb 2, 2009
I have been attempting to do this in so many ways. I have tried using rundll32 printui.dll, PrintUIEntry and for some reason it stops working on vista. I have no clue why. It wont even try to work with HP printers using the inf file. What is the best way to add a LPR port printer programmatically? I can create the LPR port with NO issue what so ever.
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Apr 9, 2009
I have a unbound datagridview for which i want to add a new row at the bottom when a user selects a value in the 2nd column of a 9 column DGV. The issue is that i have a default value (0.00) programmically entered into the last row once this 2nd column value is entered. When i call DGV.rows.add() it places the new row at teh top, but when the user enters or changes the last coulmn value then a new row is added at the bottom. I want my programmically added row to be at the bottom and have not found a way of doing this.
PS. What is the logic behind this different behavior on adding rows?
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Apr 22, 2009
OK - I have worded this search 40 different ways and I seem to be lost here. Every example I find seems so happy that you can easily drag and drop a datagrid and let the user fill it in -- then they stop! I know how to do everything I am asking through LINQ. That obviously won't translate here. I really should have learned ADO.NET first, then LINQ, but NOoooo... I need to know how to do the following in .NETCF (Windows Mobile 5) using a SQL CE database on the device.
Add a new record and populate some or all of the fields with data I supply. I don't need to add a record to a datagrid - sometimes the user will not even see the record. How do I add a new record -- put data into it and save it? For example: Create a new delivery record, say, and have the program store the date in one field and a number in another field. Search for a record, then update data in it. Again, using LINQ I can do this easily -- I cannot for the life of me find any examples of doing it without it.
I can find lots of examples of populating a grid of databound fields, letting the user make changes then saving it out. I don't need to do that. Say I need to search for the one record that meets a criteria (customerID=10 and orderID=1234), then when (if) that record is found, update a field in it.
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Oct 7, 2011
I am trying to create a new item in a sharepoint list. Not getting any error messages but the item does not appear in the list.
Here is my code:
'Declare and initialize Lists Web service.
Dim listService As New Lists()
'Authenticate
[Code].....
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Dec 10, 2009
I'm trying to use a split button from a tool strip to add and remove selected items in a listview.Users click the button to add the selected item which appears in the split button drop down menu as checked.The drop down menu has three items at any one time, each with a default value of <none> - this is replaced with the text from the listview when an item is added.When users click the item from the drop down, the item is unchecked and the text returns to <none>.
The drop down should populate from the top down so if a user removes item 1 or 2, the items below would appear to be moved up with the 3rd item now showing <none>.
[Code]...
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Jun 16, 2010
A few more details. I need to programmatically (Winforms, VB.NET) check if a site is in the Allowed Sites list of the IE Pop-Up Blocker (IE 7 and 8 and Windows XP, Vista and 7) and if not, add it. The application is fully trusted and I don't want to disable the Pop-Up blocker entirely. To clarify some things, this is for a web-automation application with several users across 3 countries. I want to avoid receiving tons of emails and explaining each time how to add the website to the Allowed Sites manually. Also, some of the users have Google Toolbar installed, which also has a Popup Blocker creating trouble to my app. Can this also be done programmatically?
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Jul 27, 2010
I have attached the 2 docs here which explains wht prob i m facibng in my proj its just piece of code out of my big proj.
How to change a particulr value of one text box control of one particular form from another form?
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Aug 23, 2011
This was explained in a recent thread - but I can't find it again :-( Why won't the following work? I am trying to set the bounds on 9 buttons - Button11 to Button19. All these buttons are already added in design time. qli() is a rectangle array.
[Code]...
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Jun 17, 2010
i 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?
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Jul 8, 2009
1. when i pick a value from a combo in next col of data grid which also have a combo should populate conditionally.
2.when i edit the cell having combo previous selected value is overwritten by first value of combo it should be if i select any value from combo but should not over written default as i click the cell. (edit mode is on click)
3.by pressing enter key cursor should jump to next cell in same row . means navigation should horizontally but should jump to first cell of next row if cell is last cell
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Feb 12, 2011
I have an asp.net usercontrol which represents a "popup" dialog. Basically, it's a wrapper for the jQuery UI dialog which can be subclassed to easily make dialogs. As part of this control, I need to inject a div into the page the control is used on, either at the very top or very bottom of the form so that when the popup is instantiated, it's parent is changed to this div. This allows "nested" popups without the child popup being trapped inside the parent popup.
The trouble is, I can't find a safe way to inject this div into the page. A usercontrol doesn't have a preinit event, so I can't do it there, and calling Page.Form.Controls.Add(...) in Init, Load or PreRender causes the standard exception "The control collection cannot be modified during DataBind, Init, Load, PreRender or Unload phases."
I thought I had found a solution by using. ScriptManager.RegisterClientScriptBlock(Page, Me.GetType, UniqueID + "_Dialog_Div", containerDiv, False) which seemed to work well normally, but recently a coworker tried putting an UpdatePanel inside the dialog and now she's getting the error "The script tag registered for type 'ASP.controls_order_viewzips_ascx' and key 'ctl00$ContentBody$OViewZips_Dialog_Div' has invalid characters outside of the script tags: . Only properly formatted script tags can be registered."
How are you supposed to add controls to the pages control collection from inside a user control?
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Jun 8, 2011
i want write code for label control into my application. i wrote the code below, but was not getting the labels when i run the program.
GroupBox.Controls.Clear()
Dim lbl1 As Label = New Label()
lbl1.AutoSize = True
[Code]....
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Sep 7, 2011
I have never created a control programmatically. I can get this far:
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Sep 27, 2010
I have a blank/unbound GridView control on my form and I am binding it in the code behind like this:[code]Running this code populates my GridView control with all the columns and data that _dataSet has. I want to display only some of the columns, change the column names, and rearrange some of these columns too (i want the last column from the actual sql database table to be displayed first in my GridView).
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May 22, 2012
I am programically creating a 2 buttons at runtime....I'm assigning the first button to open an image from file and display the image into the picture box. got that part.
The second button is where I am getting hung up. I want to assign the second button to delete the picture box from the form when I click on it but whenever I go to put in the code it throws an error at run time.
Anyone know of how I should code this to dispose of the picturebox when I click on my button?
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Jun 5, 2012
How to add a control like picturebox programatically and Allow user to move it with mouse? on google but cant find anything. Thats why I am here. In my application user creates a picturebox and a label at runtime by selecting a file from drag drop. User can create as many files he wants. But the problem is that I dont know that how to move both picturebox and label to change their location in a flowlayoutpanel which contains these controls with mouse. I know that how to add a control like picturebox programatically but dont know how to move it. I add picturebox by:
dim picturebox as new picturebox
flowlayoutpanel1.controls.add(picturebox)
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Mar 1, 2012
In my ASP.NET Web Forms I would like to get the DataNavigateUrlFields from the HyperLinkField control.
In order to get the control I use the following code in the RowDataBound event:
If e.Row.Cells(n).Controls(0).GetType().ToString() = "System.Web.UI.WebControls.HyperLink" Then
Dim linkDownload As HyperLink = DirectCast(e.Row.Cells(n).Controls(0), HyperLink)
[Code]....
Is there any way to get the DataNavigateUrlFields property? In case there is not, is there any function to extract the downloadGuid value from HyperLink.NavigateUrl (in short treating the NavigateUrl as a QueryString)?
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Oct 12, 2011
I have a vb.net asp application where I'm loading a control (from another control on a page). I want to set a variable between the two controls when it loads. This is where I load the control:
[Code]...
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Feb 13, 2012
It is a requirement that all .net Controls are created on the main thread, at least this is necessary if the intent is to integrate the control in with the interface which is usually the case. Additionally to modify properties on the control one must invoke the method from the control's thread using its own invoke method.
Is there a way to look at a control and identify its owning thread directly?
Additionally or conversely, is it possible to detect whether the current thread is the "Main thread"? Is there anything special about the thread that Visual Studio identifies as the main thread that can be seen at runtime, or is it simply that this is the first thread that VS executes to initialise debugging?
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Apr 8, 2011
how to Programmatically use the " Photo Print Wizard" to print sets of pictures and set properties like picture style, printer name, number of copies, etc, without displaying the " Photo Print Wizard" interface
Dim dialog As Object = CreateObject("WIA.CommonDialog")
Dim docnam As String = ""
Dim i As Integer = 0[code]....
what the above code block does is to open the " Photo Print Wizard" with the list of all the selected pictures......., but I can't set the " Photo Print Wizard" properties "Programmatically
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May 4, 2012
The backcolor of a default DateTimePicker control seems to be Color.White, but can this change based on a users theme colours and how do I find out what it is currently set to?(There is no backcolour property and DateTimePicker.DefaultBackColor returns SystemColors.Control which is not actually correct)I guess that if someone can confirm that this can't change then I am safe to hard code it? The basis of this question was not actually a typo, it was the fact that BackColor does not show up in my DateTimePicker control intellisense.
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Jan 30, 2010
I have a MS Access database set up, with a Period field that has either values 1, 2, 3, 4 or 5. I retrieve these values using a database connection and I would like to reference a particular control based on what period was grabbed from the database.
Here's example code, pseudo of course.
TextBox(dr(3)).Text = dr(0)
dr(3) contains the period, and dr(0) contains the content I would like to put into the text box. I have these text boxes on my form: TextBox1, TextBox2, TextBox3, TextBox4 and TextBox5.
So if dr(3) contained 2 then I would want to reference TextBox2.
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