Solved

varbinary in datagridview, from data set

Posted on 2009-05-10
4
932 Views
Last Modified: 2013-11-26
I am binding a dataset to a datagridview
in it there is a varbinary field which dsplays as a picture
if the field is null not problem but if It is not null then it crashed the datagrid
I want to edit teh dataset before i bind it,
if it is NULL then i want to show ""
if it is not null i want to just show"Encrypted Password"

I am ne to dotnet so I am relatively clueless where to start
where is what I have this far

 
Dim da As SqlDataAdapter = New SqlDataAdapter("Select * from security whereofficerid='" & ComboBox1.SelectedValue.ToString() & "'" & _
            " and pmrespersonid = '" & TextBox2.Text & "'", cn)
            Dim DS As DataSet = New DataSet
            da.Fill(DS)
 
            DataGridView1.DataSource = DS.Tables(0)
            DS.Dispose()
            cn.Close()

Open in new window

0
Comment
Question by:hainansyndrome
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
4 Comments
 
LVL 83

Expert Comment

by:CodeCruiser
ID: 24353532
You can do that with this statement

iif(isdbnull(field), "", "Encrypt Password")

Now you need to write this code in an event so that this code executes for each row.
0
 
LVL 96

Accepted Solution

by:
Bob Learned earned 125 total points
ID: 24353552
I would think that you could do some query magic, like this:


        ' Add a reference to System.Configuration to the project.
        ' Add Imports System.Configuration at the top of the code module, to use System.Configuration.ConfigurationManager.
        ' Store the connection string in an app.config file:
        '    <?xml version="1.0" encoding="utf-8" ?>
        '    <configuration>
        '      <connectionStrings>
        '       <add name="MyDatabase" connectionString="Connection string goes here" />
        '      </connectionStrings>
        '    </configuration>
 
        Dim connectionString As String = ConfigurationManager.ConnectionStrings("MyDatabase").ConnectionString
        Dim commandText As String = String.Format("Select Field1, Field2, Case When BinaryField IS NOT NULL THEN 'Encrypted Password' ELSE '' END " & _
            "From security where officerid='{0}' " & _
                    " and pmrespersonid = '{0}' ", ComboBox1.SelectedValue.ToString(), TextBox2.Text)
        Using da As New SqlDataAdapter(commandText, connectionString)
 
            ' Create a single DataTable
            Dim dt As New DataTable()
 
            ' Fill the DataTable with the query data.
            da.Fill(dt)
 
            ' Bind the data to the grid.
            DataGridView1.DataSource = dt
        End Using
  

Open in new window

0
 

Author Comment

by:hainansyndrome
ID: 24357667
yes i had thought about editing the query problem is i want to show every field in the table and did not want to have to write each field


CodeCruiser

can you give me an example of what you man to use that
i am not sure where to place it
before i write the dataset to a databridview?
0
 

Author Closing Comment

by:hainansyndrome
ID: 31579924
works like a champ
0

Featured Post

Efficient way to get backups off site to Azure

This user guide provides instructions on how to deploy and configure both a StoneFly Scale Out NAS Enterprise Cloud Drive virtual machine and Veeam Cloud Connect in the Microsoft Azure Cloud.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

In my previous article (http://www.experts-exchange.com/Programming/Languages/.NET/.NET_Framework_3.x/A_4362-Serialization-in-NET-1.html) we saw the basics of serialization and how types/objects can be serialized to Binary format. In this blog we wi…
It’s quite interesting for me as I worked with Excel using vb.net for some time. Here are some topics which I know want to share with others whom this might help. First of all if you are working with Excel then you need to Download the Following …
There are cases when e.g. an IT administrator wants to have full access and view into selected mailboxes on Exchange server, directly from his own email account in Outlook or Outlook Web Access. This proves useful when for example administrator want…
In this brief tutorial Pawel from AdRem Software explains how you can quickly find out which services are running on your network, or what are the IP addresses of servers responsible for each service. Software used is freeware NetCrunch Tools (https…

615 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question