Convert An Object To Image?
Dec 14, 2009
i have table that has column of type "Image" in my DB. in BLL datarow[5] will fetch Image in that column. according to intellissense this returns an object. In my BLL i've assigned this to class member image of type object. then i return an object of the class .
In my front end i have a DataGridView control i'v asigned the return object from the BLL to DataGridView control. In the Image column it display as System,.Byte[ ]... how can i make the DataGridView control display this image?
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Apr 10, 2009
How do I convert between an image object and Byte Array?
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Aug 12, 2009
I'm working on a Vb.net project. I have a form with a RichTextBox or a simple TextBox control. It contains hundreds of text lines, so the control has to be scrolled.
I want to send to a printer only the lines that are currently seen on the control window.
That is, I want to convert what I see into an Image and then draw that image thru e.Graphics.DrawImage.
As you can see, it could also be the case of a ListBox, a TreeView or any other scrollable control.
How can I grab that rectangle area and then convert it into an Image? The rest I already know how to do it.
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May 23, 2009
Is it possible to convert an object form System.Drawing.Graphics to System.Drawing.Image?
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Aug 31, 2009
Is there a way to convert a DataGridViewRow object to a DataRow object?
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Jun 28, 2011
i've entered image path from vb.net to oledb but can't convert it as an image to thedatagridview column.
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Apr 5, 2012
I have a JSON object that looks like this.
{
"Errors":{
"err1":[
//* Array of err1 objects
[code]....
PD: I'm currently using Newtonsoft's JSON.Net library.
Public Sub New(ByVal jsonText As String)
Dim jObject As JObject = jObject.Parse(jsonText )
Dim jErrors As JToken = jObject("Errors")
Dim jS = New JsonSerializer()
[code]....
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Jul 19, 2010
In Visual Studio 2008 vb.net i have created a windows forms application containing 2 web references: wr1 and wr2.
wr1 contains a public class "Person" and wr2 also contains a public class "Person". They both have exactly the same properties.
What i would like to achieve is to convert an object of type wr1.person to wr2.person. Something like this:
dim p1 as wr1.person
p1 = wr1.GetPerson(123)
dim p2 as wr2.person
p2 = p1
wr2.AddPerson(p2)
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Apr 28, 2010
The coding below is to retrieve the Raw Image Data from the Database and then write as a JPG image file. The problem is the image file (image.jpg) is "nothing" after file created. I guess there is something wrong in the following coding.
fs.Write(rawData, 0, fileSize)
No any runtime errors I can find, and I double check rawData (i.e. Buffer) contains data. But don't know why there is "nothing" inside the image (image.jpg).
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
Dim fileSize As Integer
Dim rawData() As Byte
[code]....
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Sep 6, 2009
How do you convert a System.Drawing.Bitmap image to any other type of image? I tried CType, which failed, since I do not know the type for .png or .jpg. I cannot find it anywhere on google either.What is the most efficient method to do this, which keeps the quality of the image as high as possible?
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Apr 10, 2009
How do I draw an image respectively on the PictureBox control and Image object? Welcome to the All-In-One Code Framework! If you have any feedback,
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May 23, 2012
I have a black & white image (find below)I want to print that image by clearing the background(i.e black dots in the form of rectagle)If i print the below bank check it is printing completly black (unable to read the content). Pls do the needful. Many Thanks
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Feb 16, 2011
The following is the code i m using to convert doc file to image.this works well for a file that contains only one page but if there are more than one page in doc file then it converts only first page of file to image.Can some one suggest me how to convert all pages of doc file to seperate images.
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim objWord As New Microsoft.Office.Interop.Word.Application
[code].....
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Feb 9, 2010
Is there any way to convert image(jpg) files to pdf in VB .net ???
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Dec 19, 2011
how to convert an ArrayList to an Object.
If I have the following:
Dim errorArray() As Object
Dim errorList As ArrayList
How do I convert errorList to errorArray() in VB.Net?
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Feb 15, 2010
I have this class:[code]I think the issue is from the ArrayLists but I dont know how to solve it. the ArrayLists contain other objects that to have the Serializeable attribute.[code]
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Oct 12, 2010
application convert doc or docs to pdf
[Code]...
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Sep 2, 2009
How can I convert this C# SelectList object to vb?
List<Information> infoData = new List<Information> {
new Information { infoID = 7, infoName = "Beer" },
new Information { infoID = 3, infoName = "Whiskey" },
new Information { infoID = 5, infoName = "Champagne" },
};
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Mar 2, 2009
exampledim str as string = "button1"do you see?string of str is "button1"now i want to string of str to object
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Aug 2, 2011
What I am trying to do is scan through the arraylist that has the number of the label control and concatenate this to the word "label" to end up with "label1", "label2", etc. Then I can then set it's visible property. The values in the array are based on tests in the code.
I haven't hit upon the right way to convert the string "label1" to the name of an object.
HTML
Private Sub FlagAnswers(ByVal wrongArray As ArrayList)
Dim sCtrName As String
[Code].....
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Jul 21, 2011
I have a listbox containing all the names of the textboxes I want to get the total value of all the textboxes?I am using the listbox because I do not have an exact amount of textboxes, they are generated by the user, I have the name set to the textboxes as tbX?
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Feb 28, 2009
I am using Linq to convert an array of any object to a CSV list:String.Join(",", (From item In objectArray Select item.ToString()).ToArray())
This is giving me the strange error: "Range variable name cannot match the name of a member of the 'Object' class."I can get round it by wrapping the string in a VB StrConv method, with a setting of "Nothing":String.Join(",", (From item In oArray Select StrConv(item.ToString(), VbStrConv.None)).ToArray())
However, this seems like a bit of a hack and I would like to avoid it.Does anyone have any ideas when this problems occurs, and any better ways to get round it?
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Aug 16, 2010
in my project I use an Excel workbook as template. Right now, this workbook is located in the same directory as the exe-assembly and can be opened and manipulated by the user. To avoid this, I thought about adding the workbook to a ressource. That works. Problem: how can I convert the resulting byte-array/stream back to a workbook-object?I tried like this, but - obviously - the conversion fails:
Public Shared Sub test()
Dim wkb As Excel.Workbook
Dim bytes As Byte() = My.Resources.Template_1
[code]....
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Mar 6, 2012
I am looking for a way to convert my List(Of string) into an Object in vb. So in the end it would be the same as declaring Dim cArray() As Object = new Object. Can anyone point me to how i can achieve this? I cannot use the LINQ .ToArray as that creates a string array and this is not acceptable for my work. I need to pass this object into another one that has the parameter (aArray as Object).
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May 29, 2012
I need to convert item.MergedDate, which is a date, to a string.Code as follows
If item.MergeDate.ToString() = "12/31/9999 11:59:59 PM" Then
item.MergeDate = ""
End If
Obviously this is a terrible attempt, but
I have tried = Nothing and didnt work.
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Jul 26, 2009
wrote a procedure that accepts as input a parameter of type decimal, or type Long as well as an array type ar() as Boolean. First thing I will do in the procedure is establish just what type of parameter I received. No problem with the scalar types, I'll use the .GetType,determine whether it's Long of Decimal, and assign the parameter I just received to a variable of that type by using convert.toInt64 or convert.toDecimal, then do what I need to do. Not so if the parameter I received happens to be an array. .GetType will tell me what it is, for example returns "system.int64[]" if its an array of Longs, but then I fail to assign it to a variable for further processing as there appears to be no conversion method to do that.
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Feb 18, 2009
I have a string in the followin format: "Jan06", Feb12 and so forth.
I need to be able to convert this string to a Date object and substract 7 days from it in order to do some validation.
how to convert the above string to a date object?
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Feb 9, 2012
I have a problem here for converting object of array to string of array in my VB.Net code. The object of array is quite long and contains 6 sets of data here.
Dim varReturnResult As Object
Dim varMapData As Object
Dim StrMap() As String
varMapData = varReturnResult(2)
StrMap = Split(varMapData, vbLf)
I encountered this error "Conversion from type 'Object()' to type 'String' is not valid." when trying to retrieve the StrMap value.
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Jun 22, 2010
i need help on this simple case [code]How could i do 'that bold area'? xString actually was dynamic variable i got from Database with SQL syntax.
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May 27, 2007
I'm reading a string from a text file, and want to use that string as the URL for my web browser object. The error I get is it needs to be URI, but I am completely lost on how to make a string into URI.
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