.NET Tutorials, Forums, Interview Questions And Answers
Welcome :Guest
Sign In
Register
 
Win Surprise Gifts!!!
Congratulations!!!


Top 5 Contributors of the Month
MarieAdela
Imran Ghani
Post New Web Links

Databound field is System.Byte[]

Posted By:      Posted Date: October 19, 2010    Points: 0   Category :ASP.Net
 

I am running a querry "select tanote from tasklist" and it returns me System.Byte[] for every row.

I know that the size of this field is 4mb and since it is large it is treated differently. How would I extract the data.


Current code I use is:


    Public Function GetRTLClients() As DataTable
        da = New FbDataAdapter("Select tanote from tbltasks where tadescription = 'RTL'", fbcon)
        da.Fill(dt)
        Return (dt)
    End Function






View Complete Post


More Related Resource Links

Where is the m_cultureTableRecord field and "System.Globalization.CultureTableRecord"?

  
Hi, In the previous versions of .net framework (before 4.0) we were reflect the DateTimeFormatInfo and the System.Globalization.CultureTableRecord from the mscorlib.dll assembly to push the persian calendar to the current culture but in the .net framework 4.0 I coudnt find them and I got null exception.is there anyone know what happend to thease items or what is the new situation for them?

Where is the m_cultureTableRecord field and "System.Globalization.CultureTableRecord"?

  
Hi, In the previous versions of .net framework (before 4.0) we were reflect the DateTimeFormatInfo and the System.Globalization.CultureTableRecord from the mscorlib.dll assembly to push the persian calendar to the current culture but in the .net framework 4.0 I coudnt find them and I got null exception.is there anyone know what happend to thease items or what is the new situation for them?

Converting a System.Windows.Control.Image object to byte array.

  
Hi i need to convert a specific System.Windows.Control.Image object into an (int) array, because i'm trying to convert a silverlight application into a wpf project. private void createGi02GradBrush()<br/> {<br/> WriteableBitmap oWriteableBitmap = new WriteableBitmap(256, 256);<br/> Image oImage = new Image();<br/> oImage.Arrange(new Rect(0, 0, 256, 256));<br/> oImage.Measure(new Size(256, 256));<br/> oImage.Source = new WriteableBitmap(256, 256);<br/> Gi02GradShaderEffect oGi02GradShaderEffect = new Gi02GradShaderEffect();<br/> oGi02GradShaderEffect.pArray = oPImageBrush;<br/> oGi02GradShaderEffect.gi1GradArray = oGi1GradImageBrush;<br/> oImage.Effect = oGi02GradShaderEffect;<br/> oWriteableBitmap.Render(oImage, null);//here<br/> oWriteableBitmap.Invalidate(); <br/> this.oGi02GradImageBrush = new ImageBrush();<br/> this.oGi02GradImageBrush.ImageSource = oWriteableBitmap;<br/> } I've found some similar topics however Image object is not the same and most of its methods aren't available. Here I'm rendering a writablebitmap with a given Image object, but in wpf we need an array. oWriteableBitmap.Render(oImage, null); Any idea? Thanks. Joseph.  

>>Object of type 'System.Boolean' cannot be converted to type 'System.Byte[]'.

  

Hi,

I am trying to upload a picture into database using FormView insertItemTemplate. 

FormView is bounded by objectdatasource.

To upload, I placed FileUpload control inside insertItemTemplate.

In table the dataType is image.

Error:

Object of type 'System.Boolean' cannot be converted to type 'System.Byte[]'.

Any swift reply would be appreciated. Thanks.

 


How to Convert System.Drawing.Image Variable to Byte variable

  

Hi

I got a variable of type System.Drawing.Image and need to convert it to a variable of type byte so I can store the image in the database. Can someone show me how to do that in VB.NET code.

Thanks alot


Adding a calculated field to a databound control

  

I'm using a gridview to extract a set of records. I need to add another field to the gridview, which can calculate the difference between a date associated with each record and the current date. Ideas?


WCF Hosted in IIS Gives System.ServiceModel.CommunicationException When transfering large byte array

  

I have a WCF service hosted in IIS that takes a byte array. If I send a small byte array the service works, if I send a large (282, 624) byte array the service fails.

I have tried increasing values etc in the config files and nothing seems to work. Any help would be greatly appreciated. Thanks

The config files are as follows:

Client:

<?xml version="1.0"?>
<configuration>
  <appSettings>
    <add key="GetDataFromServer" value="False"/>
    <add key="UseWpfService" value="True" />
  </appSettings>
  <connectionStrings>
     <add name="ServerEntities" connectionString="metadata=res://*/Server.csdl|res://*/Server.ssdl|res://*/Server.msl;provider=System.Data.SqlClient;provider connection string=&quot;Data Source=XPS1;Initial Catalog=TestServer;Integrated Security=True;MultipleActiveResultSets=True&quot;" providerName="System.Data.EntityClient" />
 </connectionStrings>
  <system.diagnostics>
    <sources>
      <!-- This section defines the logging configuration for My.Application.Log -->
  &

Model Binding - Byte[] field

  

I have a class that has a byte[]  type field in it. When I create a strongly-typed view for this class, this byte[] type field is missing from the generated rendering. I am using MVC2 VS2010. Is this a bug ?

Secondly, what is the best way to render it as a Hidden field ?

 

Thanks

 

 


System Development Life Cycle

  
The Systems Development Life Cycle (SDLC) is a conceptual model used in project management that describes the stages involved in an information system development project from an initial feasibility study through maintenance of the completed application. Various SDLC methodologies have been developed to guide the processes involved including the waterfall model (the original SDLC method), rapid application development (RAD), joint application development (JAD), the fountain model and the spiral model. Mostly, several models are combined into some sort of hybrid methodology

The Agile System Development Life Cycle (SDLC)

  
The goal of this article is to describe the agile system development life cycle (SDLC), putting it in context from what you may have heard about within the agile community and more importantly within the context of your overall IT efforts.

Performance Tests: Precise Run Time Measurements with System.Diagnostics.Stopwatch

  
Everybody who does performance optimization stumbles sooner or later over the Stopwatch class in the System.Diagnostics namespace. And everybody has noticed that the measurements of the same function on the same computer can differ 25% -30% in run time. This article shows how single threaded test programs must be designed to get an accuracy of 0.1% - 0.2% out of the Stopwatch class. With this accuracy, algorithms can be tested and compared.

calculation, field and map traverse adjustment, and coordinate transformation

  
Free Pocket PC land surveying software -- COGO calculation, field and map traverse adjustment, and coordinate transformation -- for students and professionals.

System.Security.SecurityException:

  

hello i have the following problem

i have upload my content to hosting server but i get the following error

Security Exception

Description: The application attempted to perform an operation not allowed by the security policy.  To grant this application the required permission please contact your system administrator or change the application's trust level in the configuration file.

Exception Details: System.Security.SecurityException: Request for the permission of type 'System.Web.AspNetHostingPermission, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:

[SecurityException: Request for the permission of typ

Dropdown Event (Template Field)

  

Hi,

I have grid view control that includes a dropdown control in a template field.

I wish to execute some code when the value is changed in the dropdown list.  Can't figure out how to capture this event though?

Any suggestions?


How to take value of bound field of grid in a variable or in a textbox.

  

How to take value of bound field of grid in a variable or in a textbox.

 I m using this code in .aspx page for grid.

<asp:GridView ID="Grd_Mprocess" runat="server" AutoGenerateColumns="False"

                      Width="100%" AllowPaging="True"

                      onpageindexchanging="Grd_Mprocess_PageIndexChanging"

                      AllowSorting="True" PageSize="5"  >

                 <RowStyle CssClass="odd" />

                    <Columns> 

<asp:BoundField HeaderText="DOC_TYPE_PK" DataField="DOC_TYPE_PK"  Visible="true" >

</asp:BoundField>

  <asp:TemplateField HeaderText="DOC TYPE ID" Visible="true">  &nbs

Problem upgrading to MVC3 - System.Web.Routing

  

Hi,

I'm trying to upgrade to .NET 4 and MVC 3.

When trying to compile my project, I get the error:

Error 1 The type or namespace name 'Routing' does not exist in the namespace 'System.Web' (are you missing an assembly reference?) C:\Users\spencer\Desktop\weblauncher\Common\MVCConfig.cs 4 18 Common

The type or namespace name 'Routing' does not exist in the namespace 'System.Web' (are you missing an assembly reference?)

I do have the System.Web.Routing in my references for the project.

BUT - when I try to view System.Web.Routing in the OBJECT BROWSER, nothing is inside!  The System.Web.Routing namespace is not in there - the entire thing is empty!  Could it that the dll is corrupted?  I tried to reinstall the .NET 4 and MVC 3 stuff, but its still empty!

The dll is coming from here:

C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.0\System.Web.Routing.dll

and the runti

System.Security.SecurityException: Request for the permission of type 'System.Web.AspNetHostingPerm

  

Good Day all,

Having an issue with an outside user accessing my IIS7 box. I do not have this problem when running the website from my host machine. I found this post: Http://forums.asp.net/t/1371394.aspx. I assure you that this is not a solution because I am not storing any of my files on a network share. 

What do you think my approach should be. 


I already have read rights to IIS user to my BIN folder. 


Thanks for the help. 


Categories: 
ASP.NetWindows Application  .NET Framework  C#  VB.Net  ADO.Net  
Sql Server  SharePoint  Silverlight  Others  All   

Hall of Fame    Twitter   Terms of Service    Privacy Policy    Contact Us    Archives   Tell A Friend