Make A DataGridViewImageColumn Clickable To Call A Function
Sep 4, 2011
I have a DataGridViewImageColumn with an image in it I would like to make the only area to perform a function of mine when I click it. I can click the row and get it to work but can't seem to only make just the imagecloumn the clickable region.
So as an example I have
Private Sub dgrdStatus_CellClick(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles dgrdStatus.CellClick
MessageBox.Show("You chose " & dgrdStatus.Rows(e.RowIndex).Cells("columnCustomerName").Value)
Works for the whole row, my issue is I only want to be able to click the imagecolumn to do this. Guessing I am missing the right item similar to dgrdStatus_CellClick but can't quite pinpoint the fix.
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May 25, 2012
I am trying to convert a DLL function call which has the Callback function routine called within the DLL function call.The DLL function call signature is like this:
typedef void *HANDLE;
typedef HANDLE HACQDESC;
DECLARE_HANDLE (HWND);
[code]....
how to convert this DLL call to VB.NET and also how to create the callback function and send it as parameter to this function
call.
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Jan 15, 2009
I have a function called DieRoll. In the function I have the following setup.
Dim objRandom as New Random
Dim intRoll as Integer
intRoll = objRandom.Next(1,7)
Return intRoll
Everything works as expected as far as generating a random number (1 - 6) is concerned, except for one problem. If I have a series of calls to the function one after another, the numbers come up the same. Is there a way to make sure that each call to the function is much more random?
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Jan 24, 2010
For my own amusement more than anything I am trying to create a program that has a world map then when you click on each country it leads to another form. At the moment I have the World Map as a background image on a forum, The only way I can think of at the moment is to have picture boxes but the countries are too packed together for this to work effectively and I believe that you can have transparent backgrounds on picture boxes.
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Oct 20, 2011
This code works fine, the listbox shows the posts. But how do I get the posts on the front side show up as clickable links. Maybe not in the Listbox, perhaps in a panel or similar object? [code]
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Feb 28, 2012
I have a background image,how to display the clickable images over the background image by using graphycs in vb.net?
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Apr 27, 2011
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
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Jun 11, 2010
heres what i have.. and i got it fully working... except.. I can't make the links clickable to open a new web browser window for some reason.. and how would I clean this up a bit too?
[Code]...
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May 10, 2010
I just want to disable the TabPage3 to make it not clickable but it simply not working for me. Any idea why? I'm trying to use VB2008. :)[code]
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Oct 3, 2011
May I ask a suggestion about this datagrid. I have this datagrid but it has so many column and I am going to total each and every column. If I am going to put a textbox or label, it'll be kinda difficult because it will not align to the column. Any solution you may suggest?
Another thing is this form for Daily Income. I want the form at the back (Main Form) not clickable unless I closes the Daily Income Form. So that the Daily Income Form will not go at the back of the Main Form. It is like you were saving a file on a text editor that you can't click the window behind it.
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Oct 10, 2009
I've search for hours on Google but could find a solution.want a clickable area (that can handle MouseClickEvent, DoubleClickEvent, etc...) that is transparent, hence you can look through it.For example:I have Form1 with a bunch of buttons, text fields, etc. I want a clickable area that is over the whole Form1 (thus over all the buttons, etc).If you click this area, the clickEvent for this area should be could and not the eg: button underneath this area.Most importantly of all the area must be transparent, thus all the buttons, textfields, etc underneath the clickable area should be visible. Something like a panel or pictureBox that you could put over the buttons would be ne, but a if you drag a panel/pictureBox over a button, the button is invisible, and if you say send to back, the event of the button will be called and not that of the clickable area.
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Apr 20, 2009
How to make a whole country (irregular shape) clickable?
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Aug 15, 2009
I want to make a small program which displays a text, and the words of this text are clickable, I mean when I click on a word I want to display some explanations to it. I want the same structure except that instead of URLs I want to display some text when clicking on a word. So my question is : Is there a control for this kind of use?
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Apr 1, 2010
I'm trying to undersatnd the syntax of calling a funciton and it seem confusing when I'm using a web service in ASP.net. Maybe this question should be in an ASP forum, but it is a VB question. This simple web service allows you to type in your name and it response with an alert box with you name.
My question is, How can you call a function with 2 arguments when the function is only defined for one. I understand that the second argument is actually a method that handling the respons, but how can you interchange function arguments for methods and how do you know that there are methods for
Here's my call:
<script type="text/javascript">
function HelloWorld()
{
var yourName = $get('txtYourName').value;
[CODE]...
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Mar 22, 2012
I want to create an ExpressionTree where a Func(of Vector, Vector, Vector, Vector, Double, Double, Vektor) should be called. So I use
Expression.Call(Forces(0).Function.Method, {Vec1, Vec2, Vec3, Vec4, Double1, Double2})(Vec1-4, Double1-2 are declared as ParameterExpression and Forces(0).Function as Func(of Vector, Vector, Vector, Vector, Double, Double, Vector). But I get an AgrumentException, because Forces(0).Function.Method has seven Arguments. (System.Runtime.CompilerServices.Closure as seventh argument at Index 0).
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Jan 25, 2010
How can I call a function from inside another function and suspend the calling function until the called function is finished? I hope I can get some replies because I don't know how to ask the question and make sense:).
Anyway what I am trying to do in steps:
1. The user clicks button1 which triggers the click event.
2. From the click event I call a function
3. I then pop-up a form, that has instructions for the user to read.
4. After the user has read the form he will click the "Done" button and return to the calling function.
The problem is the the calling function continues to execute. I want to stop execution of the calling function until the users clicks the "Done" button on the instruction pop=up. I know I can use a msgbox but the instructions can be lengthly and does not look good in a msgbox.
I have tried the Call method with return in the "Done" button click but I can make that work. I also tried a goto statement but I can get that to work either. In the call statement I said call frmInstruction.show() and it got there but as I said the calling function continued to execute.
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Jan 30, 2010
ive two custom controls, which are used to draw and edit etc...(like paint but customized....) i want to save their images with a single click....So im using the Getimageofcontrol function to do it....its code is below:::
Public Function GetImageOfControl(ByVal c As Control) As Image
Dim rc As New Rectangle(c.PointToScreen(c.Location), c.Size)
Dim i As Image = New Bitmap(rc.Width, rc.Height)[code].....
and the code to call this function for saving the images is simply.. ...
GetImageOfControl(pboxd).Save("c:78.jpg")
GetImageOfControl2(pboxf).Save("c:lp.jpg")
but the problem is that both the images have the same content....
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Sep 14, 2010
I have a function where I am performing a lot number of database operations inside a Sub. The operation when called directly like:ExecProcess()
takes about 11 seconds to run.However, if I create a Delegate, and call the sub using BeginInvoke(), the very same process takes over 40 seconds to execute.Here's the threaded code:
Protected del As ProcessDelegate
Protected Delegate Sub ProcessDelegate()
del = New ProcessDelegate(AddressOf SELocal.ExecJob)
Dim cb As New AsyncCallback(AddressOf Me.ExecJobComplete)
del.BeginInvoke(cb, del)
Anyone know what may cause a function to take longer inside a new thread, rather than calling directly?
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Aug 21, 2009
Some programs implement command parameters, Like my favourite computer game - Crysis - has them and windows media player has them.But how could i implement them in VB.NET..I want to have a component of my program built as a seperate exe - so it can be an Optional component.But of course the seperate exe, on load, needs data passing to it.So i need something like Process.start("Componentname.exe", "/StartDL <Suchandsuchastring>)/StartDL will need to call a function, and the string that it uses will be given to the function to initiate a download?
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Sep 6, 2010
I am attempting to inherit an ASP.NET RegularExpressionValidator and add some functionality to it. I inherited the control and added my custom properties. However, I would also like the client-side functionality to call a different JavaScript function.
In order to do that, I will need to supress what is happening in the AddAttributesToRender method because the name of the function is hard-coded there. Here is what comes up in Reflector for the AddAttributesToRender function in RegularExpressionValidator:
[Code]...
Note: I tried to add the expando property before the parent class does to see if the code would check for its existence and skip it, but that just causes an exception.
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Mar 23, 2011
I arrive from years with Oracle plsql. Now I'm trying vb.net I created a function that return a char value, so written:
[Code]...
The question: I will create a function get_type(...) in vb.net that calls the tsql function written above... how can I call the tsql function [abc].[GET_PERSON_TYPE] in vb.net function get_type(...) function?
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Feb 25, 2009
Environment: Visual Basic 2005, Windows XPI have the below data grid, I am using. I am trying to show tooltips, when I hover over the "Status" column. Red => MissingGreen => AvailableThe "Status" column is of type: DataGridViewImageColumn. The Images are inserted from "My.resources" I have tried to accomplish it using the below code, but it is not working and believe there might be a better way.
[Code]...
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May 8, 2009
I have a gridview where ALL cells have a value that is an image from the filesystem, but I need to access these files for a certain function and so I've been trying to create a method that disposes of all these images thereby freeing them up on the filesystem (was received permission denied errors). The following loop worked for the first row of images but I can't work out how to do it for all rows:
or Each c As DataGridViewImageColumn In dGV.Columns
c.Image.Dispose()
Next
[code].....
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Dec 1, 2009
I would like to make my 'Image File Path' column in my datatable set to a 'DataGridViewImageColumn'. I would then like each of the rows in this column to display a image. The image value would be populated from the 'image file path' contained in that cell of the datatable. At the moment i cannot get this to work no matter how many times i try it. At best it just shows the same image in every row and in the wrong column. As the table is populated 'dynamically' when a search is performed this is proving very hard. Below is an image showing the table and what results i am currently getting:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
dt.Clear()
[Code]....
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Apr 12, 2011
Is it possible to set IF case using the images present in the datagridviewimagecolumn?
Example:
If current row image = "Red.png"... show error msg
If current row image = "Green.png"... Insert to database
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Nov 26, 2009
i am new to VB.NET and am creating an application for twitter, my problem is that i have a datagrid on my form. On my code i have created a dataTable to store the user messages in one column and the usernames in the other column. My problem is that i cannot add a third column to the dataTable to store the user images, how do i do this? my sample code is as below :
[Code]...
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Oct 31, 2011
I am trying to call a php function from .net. I tried to a webrequest method but I am not sure how to specify the function to call in the url. A link below shows the method I am trying to call.[URL]..
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Nov 28, 2010
I have created a new Class Library in visual basic and called it 'TestDLL'. I have a TestDLL.vb file where I put in this code
Class TestDLL
Function ReturnHello() As String
Return "Hello"
End Function
End Class
Then I clicked on the build tab and built the solution. I then copied the DLL 'TestDLL.dll' to C:TestDLL.dll
I am trying to use that DLL in a console application. I have tried this code but I get an error: System.EntryPointNotFoundException was unhandled Message=Unable to find an entry point named 'ReturnHello' in DLL 'C:TestDLL.dll'.
Declare Function ReturnHello Lib "C:TestDLL.dll" () As String I have added TestDLL.dll to the references for the console application and got that to work, however my goal is to load and unload different .dll files without restarting the application. I have a lot more code besides this, but I'm just trying to find out what commands I could use for just calling functions from DLL files.
There was something I was reading about assemblies, but all I get that to do is list the classes in my dll file. I will already know all the names and locations of the .dll files, and also the class and functions that they contain, because I will be building all of them. how I can get a simple function return in my console application.
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Jul 10, 2011
How to declare following function in vb2010?[code]
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Sep 9, 2010
I have in vb a selector
Dim ver =101
Select Case ver
Case 101
upd101()
Case 102
[Code]...
How can I make this select better by calling function in more dynamically in this form: with the prefix "upd" followed by a ver integer.
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