Question

AspxGridview checkbox column in grid...

Asked by: isaackhazi

I have gridview(AspxGridview) displaying a list of names. I want to add a checkbox to the template and when a user selects a number of checkboxes and hits an 'Add' button I want to get all the rows in the gridview that were Checked.

Later I will pass this through a session variable and do the required operations.

Any idea how i can achieve this??

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Asked On
2009-08-31 at 23:47:23ID24697123
Tags

AspxGridView

,

Devexpress

,

gridview

Topics

Programming for ASP.NET

,

Visual Studio

,

Microsoft Visual Basic.Net

Participating Experts
2
Points
500
Comments
10

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Answers

 

by: AfricansPosted on 2009-09-01 at 00:44:42ID: 25229287

Hi isaackhazi,
To add a checkbox to the template of ASPXGridView, click on smart tag arrow and check on Enable Selection, new check box column will be added automatically to your ASPXGridView.
To get all the rows in the ASPXGridView that were checked you can use build-in function GetSelectedFieldValues which is returned the specified fields by you for checked or selected rows as System.Collections.Generic.List(Of Object)

Good Luck

 

by: AfricansPosted on 2009-09-01 at 00:46:25ID: 25229294

Sorry isaackhazi, I forgot to attach code.

ASPXGridView1.GetSelectedFieldValues("YourFieldName1","YourFieldName2","YourFieldNameN")

                                              
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by: isaackhaziPosted on 2009-09-01 at 00:50:32ID: 25229309

HI thanx for the reply...

I have already added the checkbox but the checkbox is not enabled. Do i have to assign the checkbox to a field(say PK). ??

 

by: isaackhaziPosted on 2009-09-01 at 00:52:41ID: 25229317

What i mean is it appears in the fridview template but with a "?" inside the checkbox.

 

by: isaackhaziPosted on 2009-09-01 at 00:57:27ID: 25229335

Say for example I have

id               name                 lname                    Check Box Field
1                 .........            ...............                            x
2                .........             .............                              X
3                ............            ............
4                 .........                 ............
5                  .......                ............
6                 ...........                .........


1. Do i specify check Box field's "FieldName" = ID?
How do i use the function ASPXGridView1.GetSelectedFieldValues("YourFieldName1","YourFieldName2","YourFieldNameN")
to iterate through all the slected rows(say ids).

Say for example i have selected first 2 rows and hit an add button


 

by: isaackhaziPosted on 2009-09-01 at 01:00:17ID: 25229343

Im sorry Afriucans I dodnt read ur answer well.

I figured out the selection part.

Just explain to me how the how to use the  ASPXGridView1.GetSelectedFieldValues function and iterate thru the selected values.

Thnx

 

by: isaackhaziPosted on 2009-09-01 at 01:19:55ID: 25229426

Say I need to Iterate throught it and insert the values into a table somewhere.
I need to insert the fieldname "ID"
ASPXGridView1.GetSelectedFieldValues("ID")
How do i Do it?

Since you seem to have good knowledge regarding DevExpress controls can you please tell me how to disable a Row from being selected
based on a condition. For example I do this to chnge the colour of the row. How do I prevent it from being selected based on the same condition??

Protected Sub ASPxGridView1_HtmlRowCreated(ByVal sender As Object, ByVal e As DevExpress.Web.ASPxGridView.ASPxGridViewTableRowEventArgs) Handles ASPxGridView1.HtmlRowCreated
        If Not IsDBNull(ASPxGridView1.GetRowValues(e.VisibleIndex, "cn_cart")) Then
 
            For i As Integer = 0 To e.Row.Cells.Count - 1
                e.Row.Cells(i).Style.Add("color", "Red")
 
 
            Next
        End If
    End Sub

                                              
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by: AfricansPosted on 2009-09-01 at 02:43:50ID: 25229796

Hi isaackhazi,
Let us solve main issue first (AspxGridview checkbox column in grid...)
According your table structure in the Comment ID:25229335, you want to return selected IDs, try attached code.

Good Luck

Dim list As Collections.Generic.List(Of Object) = ASPxGridView1.GetSelectedFieldValues("ID")
            Dim currID As Integer
            For i As Integer = 0 To list.Count - 1
                currID = list.Item(0) 'Index 0 means first fields passed to the function GetSelectedFieldValues
                'Now you can do what you want to do to the current returned ID
            Next

                                              
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by: isaackhaziPosted on 2009-09-01 at 03:14:05ID: 25229936

Great Thanx a lot for your support...... I have figured the rest of the issues out was just waiting for this answer.

Thanx A lot......
Appreciate it.

 

by: rajeeva_nagarajPosted on 2010-06-15 at 10:10:59ID: 32995721

Hi
 I am using ASPX gridview in which i am trying to show master detail which is working good but i the problem is that i have a check box in both master and details grid on check of master grid check box it should check all rows in a corresponding details grid. for check box i am using command column in grid columns. for which i am not finding any event on the server side. please help me in finding solution for this


thanks in advance
Rajeeva

20120131-EE-VQP-002

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