Interface And Graphics :: Painting DataGridView Column Headers?

Apr 1, 2011

IDE: VB Express 2008Problem: Painting DataGridView Columns.I have done extensive Google searches and found very little on the subject.I have searched this site to no avail.

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Interface And Graphics :: Drawing / Painting Imgs To Background.

Feb 9, 2009

Well im just upgrading from VB6 and i was able to paint images to the background of a form. The same method does not seem to work in VB 2008. Is there a way i can draw/paint images to the background of my form?

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Column Headers Not Visible Datagridview?

May 27, 2012

I am populating a datagridview with data from a table and some unbound columns This is a large table and I want the form to fill the screen and the datagridview to fill the top half of the form. To do this, I have put a panel on the top and a panel at the bottom.I have anchored the dgv to the top left and docked it to the toplumnHeaderHeightSize is AutoSizehe issue is that the ColumnHeaders are not visible unless I click on the restore down button on the top right part of the screen

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DataGridView Inserting New Row When Filling Column Headers

Jun 13, 2010

DataGridView inserting an extra row every time I populate with data. The row appears even if I only fill the column headers. This is causing problems when I try to get values of each cell. Is there a way to avoid this perhaps in properties?

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Export Excel From .net Datagridview With Column Headers?

Jan 27, 2011

I am using this code i found from links on this site to export data grid information to excel. it works great! I am trying to figure out how to first write the column headers to excel and then the data in the columns.

Private Sub exportExcel_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles exportExcel.Click
Dim xlApp As Excel.Application
Dim xlWorkBook As Excel.Workbook

[code].....

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Export Excel From Datagridview With Column Headers?

Mar 30, 2010

Export Excel From Vb.net Datagridview With Column Headers

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Interface And Graphics :: Add Checkbox In First Column As Per Some Condition?

Sep 16, 2011

I have one datagridview with first column may contain checkbox or could be empty space depending upon data in second column. How can I put checkbox or keep it empty in first column whever required ? Checkbox column puts check box in all cells of first column

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Apply 2 Toned Back Color To My Datagridview Column Headers Or Listviews

Mar 27, 2010

I'm new to VB 2008 and was wondering how to apply 2 toned back color to my datagridview column headers or listviews. Where the color is lighter at the top of the column header and then becomes darker towards the bottom of the column header. It seems most apps use them these days.

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Definig DataGridView Column Headers Font Style At Design Time

Jul 11, 2010

I am developing a project using VB2010. In the attached example I created a Form.

On tha form I put a GroupBox Containing a DataGridView.

I am trying to set, at Design time, the ColumnHeadersDefaultCellstyle Font of the grid, defining the Font, the size and the style (Bold). After saving the project or running it, The Font properties of the grid headers are changed to the Font properties of the containing

GroupBox.

Why is that so? How can I set, at Design Time, a different font for the Grid Column headers and the GroupBox?

To demostrate the problm - Try to modify the Font of the grid headers, in the attached example,

to "Bold" "Size 12", Run the application and see the result.

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Doing Art/painting/graphics In Basic?

Aug 24, 2010

I downloaded Visual Basic 2010 Express and got familiar with it over several days but the following issues are stumping me:

Where are the art instructions to be found? The ones featured in the examples are pretty basic. I've looked all over but can't find anything.

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Interface And Graphics :: Listview Or Datagridview - Get/set Specific Cell?

Oct 20, 2008

I need to display a list with 2 columns and "n" rows (first column will be an IP address and second column the status - say connected, failed, etc).The case is that I need to be able to SET and GET the value of a certain cell. For instances, if the user click the first row of the list (row 0), I want to be able to get what is the intersection 0,0 (IP of first row) and intersection 1,0 (status of first row) and so on.I am trying Listview and Datagridview with no success.

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Interface And Graphics :: Rows Cannot Be Programmatically Added To DataGridView

Mar 16, 2010

Below:
datBrakePointsX.Rows.Add(strA)
produces the error 'Rows cannot be programatically added to the DataGridView's rows collection when the control is databound.'
To my knowledge, this is an empty grid. I am adding data manually and the code below works if I remove the line. The problem is I need to add the next line.

Private Sub cmdAddX_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdAddX.Click
' Find the first blank cell
For c As Integer = 0 To datBrakePointsX.Rows.Count
If Len(datBrakePointsX.Rows.Item(0).Cells(c).Value) = 0 Then
datBrakePointsX.Rows.Item(c).Cells(0).Value = c
[Code] .....

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Interface And Graphics :: Semi-alternating Datagridview Row Colors?

Aug 10, 2011

I want four rows in a row to share a color in a datagridview and alternate between two colors every fourth row. What I'm doing is this:

Code:
Public function FormCells() As DataGridViewRow()
Dim NewRow(Forms.length - 1) As DataGridViewRow

[code].....

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Painting To Graphics On A Panel With A BackgroundImage?

Feb 28, 2012

I have a panel that has a BackgroundImage set to "zoom". Because of this, the image usually has some grey "letterboxing" showing the panel beneath the BackgroundImage. I want to paint on the Graphics Object of the Panel using its paint event handler. Is there a way to contrain my painting to just the image part of the panel? Is there a way to find the rectangle that the BackgroundImage is occupying within the panel?

P.S. I don't want to make a graphics object from the BackgroundImage because I'm already using that for some other "paint layers".

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Interface And Graphics :: DataGridViewComboBoxColumn Change To Automatically Update Datagridview?

Jan 24, 2010

I have a standard DataGridView. One of the columns is a DataGridViewComboBoxColumn. When I select one of the ComboBox items, I want to trap the change and add additional columns based on the item selected in the ComboBox. I've tried using CellValueChanged for the DataGridView column, and a bunch of other events, but none of them is fired when the DataGridViewComboBox value is changed. What event can I trap to make this happen?

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VS 2010 Filtering The Datagridview Column Headers Using Datetimepickers In Vb 2010

May 16, 2012

I 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]...

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Avoid Screen Flickering When Painting Graphics On A Windows Form?

Feb 19, 2010

I'm writing a simple paint program in VB 2008 that allows the user to create rectangles using MouseDown event to anchor one corner, MouseMove to stretch (or grow) the rectangle, then MouseUp event to complete the rectangle.The last statement in the MouseDown event is Me.Invalidate() to trigger the form's paint event where all the rectangles are drawn (refreshed).

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Custom ToolStripItems Painting - Draw Graphics Without Calling The Refresh Method?

Nov 11, 2011

I have created a custom ToolStripProgressBar. It is basically a class inherited from ToolStripStatusLabel, and i paint the 'progress' bar myself (just a simple rectangle). I have tried creating a custom ToolStripProgressBar using different methods including inheriting from both ProgressBar, ToolStripProgressBar and ToolStripControlHost. I always ran into difficulties doing in this way. Inheriting from ToolStripStatusLabel works well, but with one issue...

In order to have the progress bar update in the statusbar, i have to call StatusStrip.Refresh. Trouble is, adds a huge overhead to the drawing of the progress bar graphics. Simply calling the invalidate method of my ToolStripStatusLabel does not seem to render anything to the screen. how to have my graphics draw without calling the refresh method?

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Interface And Graphics :: E.Graphics.Drawstring Length Overflow Page?

Nov 19, 2010

Im working on a project that needs to print a report of one client.Everything went smooth untill i came across my multiline input text data.When i display it in the PrintPagePreview the text go's outside my page. Even when im printing it only the halve of my text is displayed. I googled and looked everywhere but i can't get a clear fix for it.

[Code]...

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Interface And Graphics :: Passing Bitmaps & Graphics To Subroutines As Arguments

Jan 22, 2011

I used to program with Visual Basic 6, so I have alot of old programs that I'm updating, plus I'm learning the new VB2008 methods. I'm writing a program that replaces the old "BitBlit" function which is no longer supported by Visual Basic 2008. It involves three picture boxes, one holds the sprite bitmap, a second holds the mask (silhouette) of the sprite bitmap, and a third has a background image.

[Code]...

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Interface And Graphics :: System.Drawing.Graphics.DrawString On Other Window?

Aug 14, 2009

drawing text on a window which is not the current form's window.I remember doing this in Win32 api with getwindowdc(handle) to obtain a DC for the Window, then textout() on the DC.

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Interface And Graphics :: Create A User Interface In A Game Such As The Application XFire Using VB?

Jan 12, 2010

how to create a user interface in a game such as the application XFire using Visual Basic?

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Interface And Graphics :: Use A Graphical User Interface That Contains A Drag And Drop Form?

Oct 19, 2008

I'm working on a design project where I have to use a Graphical User Interface that contains a drag and drop form. It consists of having a window dropped on a wall. Both of them are images to scale. I would like to know what kind of code I would have to use to show the x and y coordinates of one of the points of my window when dragged so when I drop it, I'm dropping in it on the desired coordinate of the wall.

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Interface And Graphics :: Creating A Class Holding Some Graphics?

Jan 12, 2011

Ok, I want to create a class that will handle a special rectangle graphic.In my form, I want to have two of these special rectangles. So, basically, I need two instances of that class in my form, right?I manage to initialize two, alright. But, how exactly am I supposed tomanage drawing/graphics etc in a class, and the results to be displayed in my form?

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Interface And Graphics :: Error - Graphics Paths For Designing

Oct 29, 2008

Using graphics paths for designing...but am getting an error when trying to add a shape to : _shapelist.add(createshape())

It says : Value of type 'system.drawing.drawing2d.graphicspath' cannot be converted to '1-dimensional array of system.drawing.drawing2d.graphicspath'

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Interface And Graphics :: How To Procede With An Interface Design Approach

May 18, 2012

I was wondering if I could elicit some tips on how to procede with an interface design approach.That is. What is a good way to go about establishing a "work area" where one can have multiple "floating forms" in this area.Can you have a form which occupies the entire windows desk top and the other forms "float" in this space? the "floating" forms would need to interact with each other where pressing buttons etc on them would affect other forms on the "workspace") Or what would be a good way to start accomplishing that? Or is there a better way to get the same effect?

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Interface And Graphics :: Link A Class / Object To An Interface?

Apr 21, 2010

I'm trying to make a .dll that contains a lot of basic functionality that a program can use. Currently i am trying to use interfaces to make a lot of this functionallity independend of the program using it but i hit a snag. The Basic idea is that a programmer will create his own object using the interface discribed in my .DLL file. Then implements those functions as he likes. He can then instanciate a controller (found in the same DLL) and sends his custom object implementing the interface to that Controller. The controller can then be started and will take over all the work. I do not know what type of object is send to the controller and idealy i want to program it in such a fashion that i shouldn't care as long as the object send implements that interface.In code I am trying to achieve the following: (quite simplyfied)

.Dll:
Code:
Public Interface MyInterface '<----Decleration of the interfaceFunction GetData() As Integer
Function SetData(Data As Integer)
end interface

[code]....

this propperly. I know that the second i set the interface adaptor in the Controller VS comes nagging that it can not be converted to a "MyInterface" Class. Obviously i am doing something wrong. I can change the datatype that the controller expects to the "MyController" type but that would completely ruin the whole idea of flexibillity. I am hoping someone sees what i am trying to do and can point out where i made the thinking error.

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Interface And Graphics :: Picture Of Interface And Get Feedback On Changes For Easier Use?

May 21, 2012

Is this where i would post a picture of my interface and get feedback on changes for easier use? If not is there someplace on this forum or any other forum to do this?

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Interface And Graphics :: Draw On Tabpage's Graphics?

Jan 19, 2011

So I decided to make my famous tile selector project, but instead of drawing in a form's graphics, do it inside a tabpage.Well, I managed to get it working, but it seems to... flicker.Normally, setting the form's DoubleBuffered property to True would help a lot there, but apparently, the tabpage has no such property.

When I invalidate the tabpage, I draw two images and fill one rectangle.Following past advice, those two images were created before, just once, and are stored in a variable so I don't create them every time I invalidate the tabpage.

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Interface And Graphics :: Save Graphics As Png With Transparency?

Aug 1, 2010

Ok I have this: This makes a sub called 'graphicspaint' then writes "demo version" to a picturebox1

Code:
Imports System.Drawing
Imports System.Windows.Forms

[code]......

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