Solved

Help with selecting all row in DataGridView using VB.NET

Posted on 2013-10-27
10
361 Views
Last Modified: 2013-10-27
Hi,

If My DataGrid  contains

BEL
CAN
USA

When I click on the All button, how do I obtain

BEL,CAN,USA

Thanks,

Victor
0
Comment
Question by:vcharles
[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
  • 6
  • 4
10 Comments
 
LVL 63

Expert Comment

by:Fernando Soto
ID: 39603867
Hi Victor;

Seeming you want all rows you will need to enumerate through all the rows of the DataGrid and build the string from the column that has BEL, CAN, USA in it.
0
 

Author Comment

by:vcharles
ID: 39604034
Hi,


Can you please send the code on how to achieve this,

Thanks,

Victor
0
 
LVL 63

Expert Comment

by:Fernando Soto
ID: 39604047
How do you fill the DataGrid?
What is the source of the data?
What is the Column name that the data is stored in?

Please post your code.
0
More Than Just A Video Library

Train for your certification. Learn the latest DevOps tools. Grow your skillset to do better work.

At Linux Academy, we release new training modules every week so you'll always be up to date on the latest tech.

 

Author Comment

by:vcharles
ID: 39604082
Hi,

I am using the following code to load the Grid.

   Dim dtset1 As New DataSet
        Dim fs1 As System.IO.FileStream
        fs1 = New System.IO.FileStream(Application.StartupPath + "\Country.xml", IO.FileMode.Open)
        dtset1.ReadXml(fs1)
        fs1.Close()
        Me.C1TrueDBGrid3.DataSource = dtset1.Tables(0)
        Me.C1TrueDBGrid3.Columns(1).Visible = False
        C1TrueDBGrid3.DataSource = dt.DefaultView.ToTable(True, New String() {"Country"})

Victor
0
 
LVL 63

Accepted Solution

by:
Fernando Soto earned 500 total points
ID: 39604130
Hi Victor;

This code sample should give you what you need.

' Used to build the string with Country
Dim sb As New StringBuilder()
' A comma delimited string with country codes
Dim countryStr As String = String.Empty

' Enumerate through all the rows selecting the country column
For Each c In C1TrueDBGrid3.Rows
    ' Build the comma delimited string
    sb.Append(c.Cells("Country").Value + ", ")
Next

' If the sb object has any values remove the last comma
If sb.Length <> 0 Then
    countryStr = sb.ToString().Substring(0, sb.Length - 2)
End If

Open in new window

0
 

Author Comment

by:vcharles
ID: 39604171
I'm afraid all the rows were not selected, the DataGrid also contains a column with checkboxes, could that be why the code does not work? Code below is in button click event to display data in the Grid.

Private Sub CheckControl()
        Dim CheckBoxCol As New DataGridViewCheckBoxColumn
        With CheckBoxCol
            .Name = "CheckBoxColumn"
            .HeaderText = "Select"
            .Width = 40
        End With
        Me.C1TrueDBGrid3.Columns.Insert(0, CheckBoxCol)
    End Sub
0
 

Author Comment

by:vcharles
ID: 39604209
Hi,

Below is the code that worked with a third party Grid (ComponentOne), but
getting error message related to splits for the DataGrid.

Error: Splits is not a member of DataGridView

 Dim count As Integer = Me.C1TrueDBGrid3.Splits(0).Rows.Count

        Me.C1TrueDBGrid3.ClearSelection()
        'Loop through rows and add each to the selected rows collection

        For i = 0 To count - 1
            Me.C1TrueDBGrid3.SelectedRows.Add(i)
        Next
0
 
LVL 63

Expert Comment

by:Fernando Soto
ID: 39604276
What happens when you use the code I posted?
0
 

Author Comment

by:vcharles
ID: 39604365
You code works, but I was not clear in my question, I also would like to select all the rows when I press the all button and clear all the row when I click on the clear button. If necessary I can create another post.

Thanks.
0
 

Author Closing Comment

by:vcharles
ID: 39604377
Thank You!
0

Featured Post

How To Reduce Deployment Times With Pre-Baked AMIs

Even if we can't include all the files in the base image, we can sometimes include some of the larger files that we would otherwise have to download, and we can also sometimes remove the most time-consuming steps. This can help a lot with reducing deployment times.

Question has a verified solution.

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

A long time ago (May 2011), I have written an article showing you how to create a DLL using Visual Studio 2005 to be hosted in SQL Server 2005. That was valid at that time and it is still valid if you are still using these versions. You can still re…
If you need to start windows update installation remotely or as a scheduled task you will find this very helpful.
Michael from AdRem Software explains how to view the most utilized and worst performing nodes in your network, by accessing the Top Charts view in NetCrunch network monitor (https://www.adremsoft.com/). Top Charts is a view in which you can set seve…
Sometimes it takes a new vantage point, apart from our everyday security practices, to truly see our Active Directory (AD) vulnerabilities. We get used to implementing the same techniques and checking the same areas for a breach. This pattern can re…

623 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