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ASP.net VB.net Adding images to a progrematically added GridView

Posted on 2016-09-21
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Last Modified: 2016-09-21
Hi
I am using the following code to add a GridView to my ASP.net webform panel. I am trying to create a column that shows images
from my resources. If I add a GridView manually I use the DataImageUrlField property to specify where the image is, but I don't know how to do this programatically

                       Dim oGridView As New GridView
                        oGridView.ID = "Control" & CStr(oCount)
                        oGridView.Style("Width") = "100%"
                        'NOTE: PREVENT ENTER BUTTON TRIGGERING btnSave_Click EVENT
                        oGridView.Attributes.Add("onkeydown", "return (event.keyCode!=13);")

                        Dim bfield As New BoundField()
                        bfield.HeaderText = "Name"
                        bfield.DataField = "Name"
                        oGridView.Columns.Add(bfield)

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Question by:murbro
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5 Comments
 
LVL 52

Expert Comment

by:Ryan Chong
ID: 41808212
If I add a GridView manually I use the DataImageUrlField property to specify where the image is, but I don't know how to do this programatically

you can do it in RowDataBound event ?
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Author Comment

by:murbro
ID: 41808216
Hi. Thanks. Would you be able to show me an example of that code
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LVL 52

Accepted Solution

by:
Ryan Chong earned 500 total points
ID: 41808262
something like this?

Dim bImageField As New ImageField()
        bImageField.DataImageUrlField = "<image url>"

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I guess you want to load static image into your gridview?
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Author Comment

by:murbro
ID: 41808417
Hi. Here is my code. At the bottom I show the results in the GridView. cloud1.jpg is an image in my resources

Sub Test
                        Dim oGridView As New GridView
                        oGridView.ID = "Control" & CStr(oCount)
                        oGridView.Style("Width") = "100%"
                        oGridView.Attributes.Add("onkeydown", "return (event.keyCode!=13);")

                        Dim bImageField As New ImageField()
                        bImageField.DataImageUrlField = "Text1"
                        oGridView.Columns.Add(bImageField)

                        oLoadGrid(oGridView, "Select * From Test2")

                        Me.Panel_Controls.Controls.Add(oGridView)
End Sub

    Sub oLoadGrid(ByVal oGridView As GridView, ByVal oSQL As String)

        Dim cs As String = ConfigurationManager.ConnectionStrings("PSQL").ConnectionString
        Dim cn As New SqlConnection(cs)

        Try

            Dim cmd As New SqlCommand(oSQL, cn)

            '// open the connection
            cn.Open()

            '// execute the sql statement
            Using reader As SqlDataReader = cmd.ExecuteReader(CommandBehavior.CloseConnection)

                oGridView.DataSource = reader
                oGridView.DataBind()

            End Using

        Catch ex As Exception
            Response.Write(ex.Message & " yuma310")
        Finally
            If cn.State <> ConnectionState.Closed Then
                cn.Close()
            End If
        End Try
    End Sub

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Author Closing Comment

by:murbro
ID: 41808420
OK it actually worked. Thanks very much for your help. Greatly appreciated!
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