actually when I edit float value in datagridcell , I want only two numbers to be displayed after point(.)....i.e 2.35 instead 2.34567 more over am getting it but the actual thing is that value is not getting update in the dataset , but when I reload the form it shows like 2.34567 only instead i want 2.35...
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actually when I edit float value in datagridcell , I want only two numbers to be displayed after point(.)....i.e 2.35 instead 2.34567 more over am getting it but the actual thing is that value is not getting update in the dataset , but when I reload the form it shows like 2.34567 only instead i want 2.35...
Public
Sub GridCellValidation(ByRef dgvRow As DataGridViewRow, Optional ByVal FillControls As Boolean = False)
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I want to show a Listbox below the cell of datagridview, for that i inherited a
DataGridViewColumn and added an object of listbox called LstBox .
Now i can get all property of listbox in property window for the control which i
added on form, but i cannot see the Listbox when i run the form. how to make visible Listbox.
I use this code
Public Class DataGridViewTLBoxColumn
Inherits DataGridViewColumn
Private WithEvents LstBox As System.Windows.Forms.ListBox
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I'm trying to create a Report. In my Solution I have a form with Report Viewer in it, a RDLC file and a DataSet. When I run the solution the report is populate OK no errors. I would like the User to be able to filter the DataSet so only the required data will populate the report. My DataSet contains the following columns Customer, Address, Orders. I have tried the following code but the Report is not filtered nor I get any errors.
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I am developing an application which uses a database that holds the information about a company and it's personnel. but when I try to edit already existing data in the dataset it just won't update it. I've tried all the method the MS sites provided me, but it just won't. the code looks like this: (notice this code wasn't complete)
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I have the following
Private ReportAdapter As OleDbDataAdapter 'used for controlling database
Private ReportTable As DataTable
Private ReportManager As CurrencyManager
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I have created my own object, wich contains a SerialPort. I have a sub in my object wich handles the .DataRecieved-event. I'm trying to access my DataSet from that sub, but for some reason I'm unable to do that. It keeps telling me that my tables contains 0 rows, but I'm 100% sure that they contains several rows.
View 10 RepliesI am using VS 2008, Windows XP R3, and Visual Basic.When I open some forms in the form designer, (In Solution Explorer, right click on the form, then select View Designer) the form always opens as Edited. An Asterisk "*" appears after the form name in the open window tabs. If I open the form to just view the code (In Solution Explorer, right click on the form, then select View Code), the form opens normally. This happens for just some forms.
It always happens for the same forms, and never happens for the other forms. What I am missing in those forms where the designer always thinks the form has been edited?
Here is where i load my datagridview Private Sub OE_Prices_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
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This is the only line for saving a NEW record.
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I am using sql server in my vb.net application. I just want that my sql files should not be allowed to be edited once i install my app on some other computer through say "sql server management studio express". Also is it possible that the user is able to run my app without needing to install "sql server" can i convert my files into some other format so that nobody is able to open them and edit them
View 3 RepliesI'm using ASP.NET 2.0 and VB.NET. I have a login page. If I am an existing user, when I log in, my user details are popped in the respective textBoxes. Now I wish to change one of these fields. I edited one and then clicked on the Edit button to update the record. It's not updated but instead it brings the existing value from the text box.
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I reloaded ny page with previous data that was available for my login.Now i try to edit the textbox and update .It either updated or doesnt retain the edited value in Textbox.[codd]e...
View 2 RepliesI'm using Visual Studio 2005 Team System For Software Developers. When I try to add a new DataSet to any kind of project, I cannot get to the visual DataSet designer. Rather, I get the following error (all the time no matter what the type project actually is - Windows app, Web site, etc.): The custom tool 'MSDataSetGenerator' failed. Unable to convert input xml file content to a DataSet. Data at the root level is invalid. Line 1, position 1.
View 3 RepliesBelow is my revert subroutine:
Private Sub BindingNavigatorRevertItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles BindingNavigatorRevertItem.Click
Me.GpheaderBindingSource.CancelEdit()
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My problem is Me.gpdetailbindingsource.canceledit() cancels only the current row being edited. I want all rows of my detail be reverted.
I'm trying to show a custom contextmenustrip on my datagridview and it works fine except when the cell is being being edited. Then it shows the default windows contextmenustrip with copy/cut/..Is there a way to overwrite the DataGridViewTextBoxCell contextmenustrip or disable it? The solution from Disable DataGridView System ContextMenu does'nt work for me.
Private Sub DataGridView1_MouseDown(ByVal sender As System.Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles DocCostGroupDetsDataGridView.MouseDown
If e.Button = Windows.Forms.MouseButtons.Right Then
_CustomContextMenuStrip.fGetContextMenu()
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I made a custom button by inheriting the Button class. When I double click the custom button in Designer, it makes the event handling function for MyButton.Click:
Private Sub MyButton1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyButton1.Click
End Sub
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I'm writing a custom control and I want to add a "MessageText" property of type String:
<Browsable(True),
DefaultValue(""),
Category("CustomControls"),
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The MessageText property is a multiline text, and the user must be able to set the text using the designer. The problem is that the designer doesn't allow to enter a newline directly for a string property.I want the same behaviour as the system TextBox's Text property, where you can click on the down arrow and write lines in the small text-editor that appears:How do I do that?
I'm working on a calculator application and one function is to find midpoints on a cartesian coordinate system. I have inputs for two x and two y coordinates , and the program calculates the midpoints of both and prints them in a text box as a new set of coordinates. The points are represented by doubles to allow decimal and negative points, but I want to round the final coordinates to 1 decimal place. e.g: (12.5, 9.8) Math.Round would work, except that it only seems to be able to round to a whole number. e.g: (12, 10)
Is there any way to specify how many decimal places Math.Round rounds to, or is there another function that could acheive this result?
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I am working in windows application, I have one field in sql server which has data type decimal(15,10). When I enter data from application like "123456789012345". It should be convert it in 12345.678901234 when press tab on text box.
View 4 RepliesMy program works through each cell in a raster bitmap loooking at the r g b values. Actually I'm just working with greyscale so r = g = b. I use the get pixel method to return the 8 bit value of each pixel (0 - 255). However I'm now working with a single channel 32 bit float bitmap. I can't load it into VB. I tried Dim myBitmap As New Bitmap(OpenFileDialog1.FileName) but this fails with an unspecified error when trying to open a 32 bit tiff.
The question is: which graphics format will allow me to load a 32bit bitmap into VB, and if I succeed will the getpixel method return 32bit float results for the greyscale level for each pixel?
Working on some UI stuff, but I am having a problem drawing 'Top rounded' rectangles when the two top corners are rounded. I have methods to draw all four corners rounded and bottom rounded rectangles and they render fine.
I have attempted the graphics methods in CreateTopRoundedRect() in a variety of different orders, drawing the other corner first, the bottom line first, the bottom line before the left line, etc. In this function you can see a diagonal line splitting the shape. If you were to switch the bottom and left lines only half of the shape would be filled.
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Is ther a simple way to get a picture box to have rounded corners???
View 12 RepliesI have two textboxes that will contain numbers.I convert those text boxes to integers and then want to multiply them by certain values and then show the new value in a different textbox.For example,100 gets converted to an integer and then multiplied by 1.75 and the value displayed in the other textbox is 200 instead of 175.How do I make it so the value isn't rounded to the nearest 100? Here is my code, compTotalPremium.Text and collTotalPremium.text are the boxes that are showing the rounded value.
Dim Comp As Integer = compDedPremium.Text
Dim Coll As Integer = collDedPremium.Text
Dim CompMulti As Integer = compDedMulti.Text[code]....
When I draw a line on a VB form the ends are squared off. Is there an easy way to make the ends rounded?
View 5 RepliesEvery sample code I've ever found for drawing rounded rectangles using GDI+ goes something like this (lifted and slightly modified from BobPowell.net):
Private Sub Panel1_Paint(ByVal sender As Object, ByVal e As PaintEventArgs) Handles Panel1.Paint
e.Graphics.Clear(SystemColors.Window)
e.Graphics.SmoothingMode = SmoothingMode.None
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This produces a rounded rectangle where only the top left corner is accurate.AntiAliasing has to be turned off because it is going through a remote desktop connection, and I can't depend on it being available. Besides, I am looking for a crisp rounded rectangle.I've tried resizing the other corners and changing the pen alignments, but nothing seems to produce a simple, accurate rounded rectangle.Is there a way to draw a better rounded rectangle than this in good old winforms?
Deviding an int by zero, will throw an exception, but a float won't - at least in Java. Why a float have an additional NaN info, while int haven't?
View 6 RepliesI can't round up the decimal number using VB.net
i'm using Cint(12.5) this must be 13 but it is not so i try Round(12.5) but still not roundup what do i do?
I am trying to assign a specific width to my image in asp.net (using vb.net). So I used the next code:
<asp:Image ID="PercentageImage" runat="server" Height="7px"
Width='<%# Eval("votsGraph") %>'
ImageUrl="~/images/bar.JPG" />
So how do i cast this one? (The type of votsGraph is float.)
OK so in this hex editor I have, Hex Workshop, when I search for a 32 bit float i type in (lets just say) 1. It then spits it back at me in a 32 bit float, but also as hex.
the 32 bit float for 1 = 3F80 0000
I really cant grasp this idea, let alone put it into my program.
able to convert an integer to a float then to that sort of hex.