I have an UltrawebGrid that I programmatically add a column to at runtime upon a button click..
Protected Sub Button2_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles BtnEnableCopy.Click
Me.DIV_CopyControls.Visible = True
If Me.UltraWebGrid_Segment.Columns.FromKey("Select") Is Nothing Then
Me.UltraWebGrid_Segment.Columns.Insert(0, "Select")
Me.UltraWebGrid_Segment.Columns.FromKey("Select").Type = Infragistics.WebUI.UltraWebGrid.ColumnType.CheckBox
Me.UltraWebGrid_Segment.Columns.FromKey("Select").Header.Caption = "Select"
Me.UltraWebGrid_Segment.Columns.FromKey("Select").Hidden = False
Me.UltraWebGrid_Segment.Columns.FromKey("Select").Width = System.Web.UI.WebControls.Unit.Pixel(50)
'Me.UltraWebGrid_Segment.DataBind()
End If
Me.BtnEnableCopy.Visible = False
End Sub
The column appears and I can check/uncheck as needed. I can then click a button that scans through the rows acting based on the state of the 'select' checkbox.
...
For Each ThisRow As Infragistics.WebUI.UltraWebGrid.UltraGridRow In Me.UltraWebGrid_Segment.Rows
If ThisRow.Cells.FromKey("Select").Value = True Then
thisSQLCommand.Parameters.Clear()
thisSQLCommand.Parameters.AddWithValue("Parcel_ID", ThisRow.Cells.FromKey("Parcel_ID").Value.ToString)
thisSQLCommand.Parameters.AddWithValue("Old_Segment_ID", Me.DDL_segment_area.SelectedValue.ToString)
thisSQLCommand.Parameters.AddWithValue("New_Segment_ID", Me.DDL_SegmentsCopy.SelectedValue.ToString)
Try
thisSQLCommand.ExecuteNonQuery()
Catch ex As Exception
ErrorInfo = "Allotment: " + ThisRow.Cells.FromKey("Allotment").Value.ToString + " failed to copy. It probably already exists in the target segment."
ErrorInfo = ErrorInfo + System.Environment.NewLine
Me.txtErrorMessage.Text = Me.txtErrorMessage.Text + ErrorInfo
Me.DIV_Errors.Visible = True
End Try
Next
Again this works fine.
What I am trying to accomplish now is to have buttons to select all or unselect all checkboxes in the 'select' column.
What I've tried is..
Protected Sub btnSelectAll_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnSelectAll.Click
For Each thisRow As Infragistics.WebUI.UltraWebGrid.UltraGridRow In UltraWebGrid_Segment.Rows()
thisRow.Cells.FromKey("Select").Value = True
Visually this selects all the checkboxes in the column and looks good.
The problem is when I click on my button to process the grid all of the checkboxes are now unchecked - something is causing me to lose the values.
I only lose the state of the checkboxes when I programmatically set them (through a postback which I assume is the issue). The state is correct if I just manually check/uncheck checkboxes and then click the 'process' button.
What do I I need to do to make a 'select all' and 'select none' button work for this? Do I need to do it on the client side (if so please give me a some clear code to do it - javascript is my enemy)...
I tried to submit this as a priority support request twice today - keep getting an error on the page after I click submit :(
Hello,
Please refer this client - side solution:http://devcenter.infragistics.com/Support/KnowledgeBaseArticle.aspx?ArticleID=5057
Thanks.
Thank you! That is helpful!
Support came through with the following code which works perfectly..
function checkAll() {
var grid = igtbl_getGridById("<%=UltraWebGrid_Segment.ClientID %>");
var colIndex = grid.Bands[0].getColumnFromKey("Select").Index;
for (var i =0; i<grid.Rows.length;i++)
{
grid.Rows.getRow(i).getCell(colIndex).setValue(true);
}