I have a datagrid where the first column is for image button for expand purpose. The visibility of the image depends on some conditions row by row. I am trying to handle this in ItemDataBound event, and using e.item.cell(0).findcontrol("imageButton").visible = false. The first cell of this row therefore disappears even that the size is specified in the ItemStyle tag.
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I have just found that if a DataGridView image column's size (height & width - in pixels) is smaller than the image's original size (in my case all images are exactly 180 x 180 pixels) at the time the cell is populated then the image is automatically being converted to a lower resolution I assume to fit the image completely within the size of the cell). How can I stop the automatic scaling of the image?
The image below show the same file displayed twice, both at 60x60 pixels ('Thumbnail' column) and a blowup of the image (PictureBox populated via the CellMouseEnter event) to it's right. You'll notice the resolution of the first blowup is far less the the second. so, what made the difference in the resolution of the blowups is? In the second blowup's case I'd first stretched the image column's width to ~180 pixels and set the row height to match (via the ColumnWidthChanged event) then populated the DataGridView then stretched the image column to 60 pixels (its minimum).
I have a label which appears full screen on a projector (VGA 2). In this label I will be sending strings. Some one liner's, some wrapped paragraphs. Some multi-line with carrage returns. My goal is to have the font dynamically change size to be as large as possible without overflowing the fixed label size.
View 10 Replieswe have project in VB.NET (Win forms), I need to increase Textbox fontsize dynamically on selecting the Expand button, Please let me know how to Increase and descrease the fontsize dynamically.
View 8 RepliesI have a table layout panel it has 3 rows and a column in first row I have a toolstrip having two buttons and in third I have a grid first row is absolute, second is absolute and third is autosize Now on resize event or toolstrip If I change the size of first row dynamically third row shows odd behavior.For a value of first row ,third row (grid) sometimes overlaps the first rows control and sometimes too far from it .
View 2 RepliesHow to change the size of RectangleShape or OvalShape at runtime?
View 2 RepliesI read in a book about changing font size in a label via a scrollbar. I was wondering if it is possible to do this with a rich text box.I have the following code
Private Sub vsbHeight_Change()
rftOutput.FontSize = vsbBar.Value
rftFontHeight.Caption = vsbBar.Value
[code].....
I am currently using a DevExpress (10.2) Banded GridView within my Visual Studio 2010 project. It works great except I was have an area where I allow the user to choose which columns they want visible or invisible. I noticed that if I make all the columns within a band invisible the band still remains and gives an empty column in my grid. I was wondering if there is some way to automatically
View 1 RepliesI'm having problems trying to change individual cells' colors in a datagrid. I saw a few hints which would make things easy, but unfortunately I'm working with Visual Studio 2003, so I don't have access to the newer attributes.
View 5 Repliesis there a way to change the border of a datagrid cell? im creating a simple gantt chart and it should be look like this
im done with the colors, my problem is on the cell border.
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The problem is when I change the value in the cell 2, it didn't "refresh" the cell 4. I think I've a problem on the event "valuechange" but I dont know why
I have a datagrid that will get built at runtime. So i don't now how many columns I may have.I know I can do a column count, and get a list of the names. So don't think that will be a problem.What I'm trying to do is change only the CELL color, not the row, or the column, based on the value of the cell.Below is something I started with, but it clearly doesn't work.
' For Each row As DataGridViewRow In Me.QDGV.Rows
' ' Get the READY value from each row as we loop
' strExt = CStr(row.Cells.Item(4).Value)
[code]....
I was looking to change the background color of a datagrid cell when the cell value changes
View 1 RepliesSo I've got 2 unbound datagridviews, and am providing a push/pull interface where the user can move records from one to the other.
Grid A is read-only and the selectionmode is set to FullRowSelect. Grid B has a read-only DataGridViewTextBoxCell, an editable DataGridViewComboBoxCell, and an editable DataGridViewComboBoxCell.
Because the grids have different columns, but represent the same records, my notion was to create the datagridviews with the same column structure but hiding certain columns, and then just move the DataGridViewRows back and forth between the two, which seams to work.
The problem is that if I go into column 2 or 3 in grid B, I get "Current cell cannot be set to an invisible cell".
I can select cells in column A and I'm fine. It should be noted that on grid B the hidden columns are 4-7.
I know there's a problem when the CurrentCell attribute is set to a hidden cell, but I'm clicking visible cells. I inserted a breakpoint on the CellClick event of the DGV, and again for column 1 that works fine, but on columns 2 and 3 it looks like the error is occuring before the event even gets fired.
Is something in the background setting CurrentCell to one of the hidden cells before firing the event?
im taking the difference between two numbers and placing it into a cell in the datagridview...
i want to change the forecolor of that specific cell to either green or red, depending whether the number is positive or negative...
i cant figure this out, and i have searched on the web...not really seeing anything that makes sense...
after pulling the data into the datagrid. how can i make the cell clickable ,like if i select any cell ,the new form should come up.
im using ms access 2007
I'm currently working on a school project. And a part of the program is to 'change' the images. All images added are BMP-files. But the output has to be JPEG. Now there are 2 other problems:
- The width of the image should be between (70-165 ) Pixel and the height between (65-185 )Pixel
- The filesize of the image should be between (3-4 KB)
I know how to change the width/height, but it's hard to make the filesize between 3-4 KB.
I want to change the size of the images in javascript onmouseover.Dim files As String() = Directory.GetFiles(Server.MapPath("~/Folder1/Folder2/"), "*.jpg")
For Each File As String In files
File = File.Substring(File.LastIndexOf("/") + 1, File.Length)
'Response.Write(File & "<br>")
File = File & "~/Folder1/Folder2/"
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I'm trying to change the size of the image in a picturebox, without resizing the picturebox?
View 3 RepliesI want to allow the user to be able select the Image path by clicking on the textbox. Hence the selected image path will be shown on the picturebox. But the selected image size is not the same with the PictureBox. So my question is, how can i change the size of the selected Image to fit in nice into picturebox? [code]
View 4 Repliesi'm currently wonder how to let the users change the font size via a combo box(I have it set up for Small,Medium and Large) That should be fairly easy. The next is more complex. I want users to be able to browse for an image and use it as the background image of the program.
View 4 RepliesI have a listview control. it has an imagelist attached to it with two images in it. I have entered items into my listview, and they are using the first image in my imagelist.... GREAT! Now, there is a variable I have that will tell me which index in the listview is currently active, noting to do with what I select that could be at another index it's just what's being processed by the program at the time in some task.
Create a function that will change the images of all my listview items by looping through them. If the index variable is set to 2, I want the 3rd item in my list view set to use the 2nd image in my imagelist. The rest of the items in my listview need to be set to the first image in the imagelist.
I'm trying to make a visual map editor, and figured that a DataGridView would be the best way to go. I would like to make it so that you can click one of many buttons to set which new image the grid cell will be set to when you click it. I've set up pretty much everything except that I can't figure out how to set the background image of the cell that I clicked.
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I'm trying to make a button that can change webbrowser1 Size so it gets maximized.
How can i do this?
Im trying to resize a picturebox dynamically using .size.height and .size.width Its not working. This is the error message: "Expression is a value and therefore cannot be the target of an assignment." Never used height and width before. Been trying to find the answer, but it seems beyond me. Im sure its easy. Anyone know whats wrong with this?
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I have made a little bit of code which forces a naturally diverging iteration loop to converge to the value I need, excellent, but it currently is controlled by a button which I click to execute it. What I want to do is to automatically run the module when one of the input parameters changes, to find the new equilibrium value. Forgive me if this is really simple stuff, but I just can't figure out how to do it.
View 8 RepliesIm doing a mini project and i need to display an image in picture box control when a cell clicked in datagrid view control .the image is linked through the database ms access and im using vb.net frame work.
View 2 RepliesI use some code to successfully resize and save images - but I want to save the image to 800x800 px size on a canvas of 900x900px so it has a white border type thing around it.
View 8 RepliesI have some forms that include a flowlayoutpanel with some items.A button expands/hides this panel.I want to make this show/hide change smoother to the users eye so added this code:
Private Sub Resize_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
If RadioButton1.Checked = False Then
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I have the Context Menu Options like ( Small Font , Large Font ) based on the selection I want to change the size of the Font in the Controls,Control's Size & location(x,y,height,width). The resize of the controls should not affect the look and feel of the forms.
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