Question

Currently using a webgrid

@{
                    var DB = Database.Open("CHAVI");
                    var grid = new WebGrid(DB.Query("SELECT [FileTrackingTag], FileID FROM (SELECT [FileTrackingTag], FileID, ROW_NUMBER() OVER (PARTITION BY [FileTrackingTag] ORDER BY FileID) rn FROM [dbo].[MasterSequence]) t WHERE rn=1 ORDER BY [FileTrackingTag]"));
                    @grid.GetHtml(
                        tableStyle: "webgrid",
                        columns: grid.Columns(
                            grid.Column(header: "Assign? ", style: "labelcolumn",
                                    format:
                                        @<text><input class="check-box" id="assignChkBx" name="assignChkBx" type="checkbox" value="@item.FileTrackingTag" onchange='handleChange(this);'  /></text>),
                            grid.Column("FileTrackingTag", "FileTrackingTag")
                            )
                    )
                 }

And I have a hiddenfield

@Html.HiddenFor(m => m.MyHiddenDict)

from my model

public Dictionary<string, string> MyHiddenDict = new Dictionary<string, string>();

I need a javascript function that will add or remove to the dictionary based off if the checkbox is checked or not. My first approach was to add it to a string that was comma delimited. However, I have no way of undoing it if the user unclicks the checkbox. Any suggestions?

Answer 1

Turns out you need to just force the user to select only from one page, otherwise you need to create a list in the sessionstate and when you call the webgrid page check off the ones you already used