I used the barcode example to my application and it generated barcode perfectly now I want to know that can this barcode image is readable by a barcode reader device ?
If Yes then how and if no then why and how to do ?
I have a barcode scanner . I want to read the barcode to a textbox in my asp.net application.
.So how can i get the barcode number into textbox.
I have some code in my vb.net code behind that queries a database, and if there is data, outputs it from the codebehind to a datalist on my asp.net page. In addition to sending the data to the datalist on the page, I need to take the value from "mbillaty" that is returned from the sql query, and have that value be the selected value for a drop down box also on the page. I can get either the datalist to fill, or the selected value for the dropdown box to be selected depending upon which bit of code I place before the other (ARGH), but I can't get them to both work together on the page. What am I doing wrong?
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I am searching for bar code integration code for Asp.net webform. Looking for complete sample source with suggestion of bar code scanner company and model name to integrate.
View 1 RepliesI am generating barcode image dynamically on button click .
The image is display on the asp image control, now I want to save that image in database
string barCode = txt_ID.Text;
using (Bitmap bitMap = new Bitmap(barCode.Length * 40, 80)) {
using (Graphics graphics = Graphics.FromImage(bitMap)) {
Font oFont = new Font("IDAutomationHC39M", 16);
PointF point = new PointF(2f, 2f);
[Code] .....
I have a gridview on my aspx page with four columns from sql server.
Now my requirement is, whenever user click on button a barcode should be generated from the gridview and displayed in control.
I m totally clueless to how to achieve this and where to start.
I have been able to successfully read a row of data from an SQL table using two column parameters. Now I would like to update this row with new information. Is this possible since the reader does not specify which row was read with the 'reader.Read();' command?
View 7 RepliesI have try the code that you provide in article "Dynamically Generate and Display Barcode Image in ASP.Net"It is running, however, the barcode image is not there. Eg: I put "a" in the textbox, after push the generate button, its only show "*a*" without the barcode.
The error shows that it is invalid parameter in line "Using bitMap As New Bitmap(barCode.Length * 40, 80)"Â
I have install the application that been given too.
How to print barcode
provide me sample code for me ASAP.
Environment is : vwd2008, asp.net 3.5, linq to sql object model, formview, stored procedure used for query.On going problem... I have a simplified page with a webform content area from a master page. The content area contains a FormView connected to an object data source thru the design view tag. The O/R designer has the Lease Table and the stored procedure in the method area.
The stored procedure selects all records from a single table. I an using the DatabaseDataContext and selecting stored procedure name which has "return SingleResult".. There is no code written; the design view was used to create everything. The stored procedure executes in VWD 2008 express tab and shows desired records. I would like to use the O/R and Linq to SQL, and objectdatasource BUT.
Im creating my own website where my members will be able to buy and sell products online. Basically it would be selling and buying of cd's,dvd's,movies,games,bluray etc. I want the members to be able to enter the barcode of the product they wish to sell into a textbox, once they submit this, they should be presented with details of the particular product which matches the barcode. The details would usually be name and some description of the product. I have used this kind of software on an iphone and also come across it on this website http://www.musicmagpie.co.uk. Once the product shows up the member can can choose to go ahead in selling the product.
I wanted to know what is the process of implementing the "barcode reader" mechanism into my website.
I have following code that I can only add one image per row although I can add Listbox items as I wanted.
If "imgtag" 1~5 is checked, I get these in the listbox.
ie. ImageID = "cat"
listbox1. item gets - cat1, cat2, cat3, cat4, cat5
however I can only create the last image instead of 5 images.
- imageID - cat5
I assign each image unique ID.
If reader2.HasRows Then
While reader2.Read
Dim img1 = Convert.ToString(reader2("imgtag1"))
Dim img2 = Convert.ToString(reader2("imgtag2"))
Dim img3 = Convert.ToString(reader2("imgtag3"))
Dim img4 = Convert.ToString(reader2("imgtag4"))
Dim img5 = Convert.ToString(reader2("imgtag5"))
Dim blogimg = Convert.ToString(reader2("ImageID"))
Dim a As New HyperLink
a.Attributes.Add("onclick", "return hs.expand(this)")
a.Attributes.Add("href", "../../blog/images/" + blogimg)
Dim img As Image = New Image
img.ImageUrl = "~/blog/images/" + blogimg
img.Width = 200
If img1 = "1" Then
Dim blogimg1 As HtmlTableCell = CType(FindControl("blogimg1"), HtmlTableCell)
img.ID = blogimg + "1"
a.Controls.Add(img)
blogimg1.Controls.Add(a)
ListBox1.Items.Add(blogimg + "1")
End If
If img2 = "1" Then
Dim blogimg2 As HtmlTableCell = CType(FindControl("blogimg2"), HtmlTableCell)
img.ID = blogimg + "2"
a.Controls.Add(img)
blogimg2.Controls.Add(a)
ListBox1.Items.Add(blogimg + "2")
End If
If img3 = "1" Then
Dim blogimg3 As HtmlTableCell = CType(FindControl("blogimg3"), HtmlTableCell)
img.ID = blogimg + "3"
a.Controls.Add(img)
blogimg3.Controls.Add(a)
ListBox1.Items.Add(blogimg + "3")
End If
If img4 = "1" Then
Dim blogimg4 As HtmlTableCell = CType(FindControl("blogimg4"), HtmlTableCell)
img.ID = blogimg + "4"
a.Controls.Add(img)
blogimg4.Controls.Add(a)
ListBox1.Items.Add(blogimg + "4")
End If
If img5 = "1" Then
Dim blogimg5 As HtmlTableCell = CType(FindControl("blogimg5"), HtmlTableCell)
img.ID = blogimg + "5"
a.Controls.Add(img)
blogimg5.Controls.Add(a)
ListBox1.Items.Add(blogimg + "5")
End If
End While
I have a function which allows me to quickly load SQL results into an SQLDataReader.
This is a very effective way for me to do this as it can be used for inserts, updates and selects very easily throughout my code.
However, I have noticed some potential memory issues with my site while using this (I keep having to do iisresets when working locally because all the pools are used up) so I am trying to use "Using" rather than "Dim" in an effort to ensure that the connection is always disposed.
I call the function in the following way:
Dim RS As SqlDataReader = SQL.Exec("sp_MyStoredProcedure " & ID)
If RS.Read Then
Return RS("Column_Name")
End If
RS.Close()
[Code].....
I now get the error "Invalid attempt to call Read when reader is closed" when calling the function on the line "If RS.Read Then".
I am stuck in chart controls...Here is my prob... There is a ListBox containing some items...when user selects multiple items from the list box I want to generate a dynamic table with the number of columns same as that of the number items selected in the listbox. And for each selected item I want to show a seperate chart in the columns...Currently I want the same chart control for every selected item (i.e. a static hard coded chart that i will replace later by dynamic values)....I am using a method that draws a chart control using a sample dataset... I am calling it each time when a new column is created..Also the DrawChart method executes for the first column only and throws an index out of range exception! after the first execution...my code is not working...here
my code...
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[Code]....
so i have a content page that load some content into repeater one of the repeater items is UserControl, when the page is load for the first time everything is perfect, but if i try to do postback and reload the repeater i get this error:
Code:
Exception Details: MySql.Data.MySqlClient.MySqlException: Invalid attempt to Read when reader is closed.
this error is raised in the repeater databind event.
Here is the setup: I programmatically populate my gridview using LINQ to SQL query. Then I enter the edit mode and want to replace some standard TextBox controls with DropDownLists like this:
[Code]....
At this moment I have my gridview showing standard textbox control and new DDList control (in the Column 1).
The problem is -- I cant read the value from DDList in the RowUpdating method. It seems like DDList control is not in the GridView1.Rows.Item(0).Cells(1).Controls collection. RowUpdating method sees only standard TextBox control and can read it's value.
I have a web method in second.aspx,which has to be executed only if the incoming request is 'application/json'.So in my First.aspx page I am programmatically generating a Http request with content type set to 'application/json' using the following code.
HttpWebRequest req = (HttpWebRequest)WebRequest.Create("http://localhost/website1/Second.aspx");
req.ContentType = "application/json";
HttpWebResponse resp = (HttpWebResponse)req.GetResponse();
StreamReader sr = new StreamReader(resp.GetResponseStream());
string results = sr.ReadToEnd();
How to print barcode label on client barcode printer from asp.net or create a application in vb.net and link to ASP.NET to print the label.
View 4 RepliesI am creating a Table Control programmatically and I want after user clicks a button to get the values.
The table has three columns, {Title(DropDownList), FName(TextBox), LName(TextBox)} and two rows.
I am getting the values for FName, LName without problem, but I am getting wrong value for Title, which is a DropDownList. It gives me for both Titles, the selected value of the second column.
More Clear
For the 1st row --> Mr, Foo, Bar
for 2nd row- -> Mrs, Foo, Bar
after user clicks the button I am getting
For 1st row --> Mrs, Foo, Bar
For 2nd row- -> Mrs, Foo1, Bar.
This is the method of table creation
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Today I researched about reportviewer to use it in my project. As I see the samples and tutorials in the web, We should create an dataset file to Solution Explorer and bind it to report viewer to show data.
However I want to create dataset programatically like sample code below. And I want to bind it.
Dim ds As New DataSet
DB_Gateway.myDataSet("select * from users", ds, "users")
How can I do it?
I've read up on this error from other posts and on other sites, but haven't found a solid resolution to the issue yet. My setup is as follows:
I have a RepositoryBase class that fields certain db calls that all repositories need to perform. In one such call, "GetSecurityGroup", it works most of the time, but will seemingly at random throw an exception with the error "Invalid attempt to call Read when reader is closed." All other Repository classes inherit from this one, and they all use the same DataContext object, which I understand isn't thread safe. Since there could be multiple calls to the DataContext object on the same page, perhaps one is using the DataContext when the next tries to do so. I'm not sure. What can I do to ensure this doesn't happen?
The AsyncFileUpload control turns green, indicating that the attachment was successfully uploaded, but the designated method for handling the server side UploadedComplete event is never executed.
View 6 RepliesI am using EditorFor to display values.
The code for the values to be generated are as follows:
<tr>
<td>@Html.HiddenFor(m => m.ID)@Html.CheckBoxFor(m => m.Authorized)</td>
<td>@Html.DisplayFor(m => m.ID)</td>
<td>@Html.DisplayFor(m=>m.UserName) </td>
</tr>
My aim here is upon the Checkbox is being checked, I need to post the ID value as follows:
[Code]....
However, var ID = $(this).parent().parent().find('#ID').val(); is undefined. How can I he read the ID value from the following generated HTML:
<td><input id="Employee_0__ID" name="Employee[0].ID" type="hidden" value="1100" /><input id="Employee_0__Authorized" name="Employee[0].Authorized" type="checkbox" value="true" /><input name="Employee[0].Authorized" type="hidden" value="false" /></td>
<td>user </td>
I have a web service running somewhere... I have added a reference of the same in my project. I had used SOAP UI to check the outgoing and incoming SOAP messages.
Now what i need is to MODIFY the SOAP message after it has been created (I wont be creating the soap message manually,) modify as in, I mean to insert some element into the header (such as public key etc) and encrypt the contents present in the body.
I have tried a lot of googling and have come to conclusion that i may have to use the SoapExtension Class.But i just dont understand how to do it.
There are method like ProcessMessage(... which require SoapMessage as input parameter. Now how to read
a generated SoapMessage is still unclear to me. I dont want to read the Soap message using tools (fiddler, soapui etc). I wish to read it programmatically.
i have a xml configuration file like below format.
<setting>
<web>
<mailid>xxxx</mailid>
</web>
<network>
<logid>sd</logid>
</network>
</setting>
i would like to programmatically read entry from xml config file which is same as asp.net webconfig file reading.
