Forms Data Controls :: CheckBox In DataGrid Doesn't Work
Feb 25, 2010
I am making checkbox in datagrid, no matter what I try, I cannot get the right result from checkbox. Even I check or not check the checkbox, the result is false. It is like somehow the result is always the default value of the checkbox.
I have checkbox in datagrid. I m getting the right data from database. As my database is oracle, I m unable to boolean. so, I m using char value to store checkbox value.I m getting the right checkbox value but when I m trying to update checkbox, its just post back but it is not storing correct value.
I have a datagrid which retrieves particular columns from an SQL database table. I also have a checkbox appended on to each row, so that selections can be made against rows of the users choice (i.e. select photos to add to favorites).
How can I code this (in VB.NET) so that these checkboxes are processed sequentially? I have heard an "array" might be best for this, but don't know how to code it. Essentially, I want the VB.NET to look through the datagrid list and to process only those rows with checkboxes checked, by applying some SQL based on these selections.
I was trying to find out if there are any check boxes checked in the datagrid, if non of them is checked it should show me an alert to select atleast one.
My problem starts when there is paging in datagrid...
not able to check the entire datagrid at a time in itemDataBound event for the checked check boxes.
Im basically listing a set of facilities in a datagrid. Like so:b Projectorcb Laptopcb TelevisonIn roomview, a check appears where a facility is availble in a room. This part works fine.The user can then edit the facilities, by clicking on the check beside each facility. When the update button is pushed I need to record the value of the checkbox, however I cant get the value of the checkbox.eres my codebehind:
I have a web application that takes information entered by the user and displays it in a few datagrids, that are located withing a multiview.
In order to enter a row to a datagrid the user enters some information and clicking on a button calls a function that adds the data to an arraylist, which is the source of the datagrid. In addition, every postback the data is binded to the datagrid.
It all works fine in the first time, but from the second row and on it enters only parts of the data and ignores the rest.
I have a Datagrid one of the colums is a checkbox and when it is selected I' m supposed to update that row. I have a button to update this outside the Datagrid. It seems to work well for the first two rows but after that meaning starting 3 to any it just doesnt update no errors but doesnt update. When I look into the id it seems to be empty.
Private Sub btnInactivateAllSelected_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnInactivateAllSelected.Click ' 'Function declarations Dim currentMethod As String = MethodBase.GetCurrentMethod.Name 'Object declarations 'Variable declarations Dim ruleID As Guid = Nothing Dim oRule As PSXSTL.Digecenter.Rule = Nothing Dim changetext As String = Nothing 'Start Try...Catch statement _moduleName = "btnInactivateAllSelected_Click" Try For Each item As DataGridItem In GroupDataGrid.Items If CType(item.FindControl("chkApprovalCheck"), CheckBox).Checked = True Then ruleID = GroupDataGrid.DataKeys(CInt(item.ItemIndex)) oRule = New PSXSTL.Digecenter.Rule(DirectCast(Session("CustomerID"), Guid), ruleID) If oRule.Complete Then oRule.RuleStatus = False oRule.ActiveDate = Now.ToString changetext = "On " + Now + " " + Session("FirstName") + " " + Session("LastName") + " deactivated the Rule." If Not oRule.ProofReviewed Then changetext = changetext & " PDF not viewed" End If LogEditHistoryItem(changetext, ruleID) ' Call ' added 10/19/2004 by Rob MacMorran LogBulkOrderHistory(oRule) oRule.Update() End If oRule.Dispose() End If Next ' Server.Transfer("customer_clientrules_results.aspx") Catch ExceptionObject As Exception 'Write the exception out to the event log. EventLogHelper.LogException(ExceptionObject, _moduleName, "Error occurred in " & _moduleName & "/" & currentMethod & ControlChars.CrLf & ExceptionObject.StackTrace, EventLogEntryType.Error, 55555) Finally 'Cleanup 'Object disposal If Not oRule Is Nothing Then oRule.Dispose() oRule = Nothing End If 'Variable disposal ruleID = Nothing changetext = Nothing 'Function variable disposal currentMethod = Nothing End Try Server.Transfer("customer_clientrules_results.aspx") End Sub
This morning I posted a question w.r.t Radio Buttons, but the requirement changed so I'm posing a similar question.
I want to have a checkbox in a datagrid.
Suppose I click on one of the checkboxes and then realize i need to click on another, the screen has to automatically uncheck the previously clicked checkbox and then check the newly clicked checkbox.
In other words I need to clear previously checked checkboxes and check the recently clicked checkbox.
Also, I need to update a label in the page with a value associated with the row of the checked checkbox.
I'm having trouble generating onchange event code for a simple order form housed in a datagrid.This takes product items from sql database,whereas user can enter quantity (originally set to 25) of cards they want to order (the textbox id is txtQty). if they order 50 (so if they order 25 to 49,the price would stay the same for the lot),the subtotal for that given product will change another 15 dollars greater.,so the formula for the price wouldnt be product * price, but "if qty = qty + 25 then subtotal = price + 15".Then the button click event would add the subtotals to a grand total.
I cannot coordinate teh adequate javascript that would fit with this type of scenario,given that this is all predicated on each product coming from the database; i'm wondering if there is another good source i can be directed to that would show helper functions in the code behind or header subs to calculate the onchange (or textOnchange) event of the textbox.
I've got in a gridview with two EditItemTemplate, which are dropdownlist. for the fisrt one I need autopostback because it's used in the second.So to bind the second dropdownlist, I'm useing the GridView1_ItemUpdating, but it doesn't work. It never goes into this funktion and so on updating the column with the second dropdownlist has Null values.What's wrong?That's my code:
i have a gridview that binds data after changes were made (delete,update..) and it's all done with the c# method DataBind() and i don't know why FF shows the changes but in IE8 the grid remains the same and only if i navigate back and refresh, then i see the changes.
I have a gridview connected to my objectdatasource, i wrote a class for the database queries.Now when i do an update of record i get the id form the grid, when i click on delete i don't get the id, its 0.Is there an option to set the id? i can't find it in the gridview.
by default, my formview loads up to Editmode and it looks like this:
[Code]....
My Page_load looks like this:
[Code]....
Problem is if binding is not ran during postback here, buttons on the ItemInsert mode DO work, but the button on the ItemEdit mode DON'T work. However, if I don't bind the fv1 here during postback, controls will not load on the formview ItemEdit mode and databinding will not occur.
No matter how I set the width in the EmptyDataRowStyle in a GridView, it gets ignored. The width of this construct always takes on the width of the text instead of what is asigned to the width property. This is also true if the property is set as a CSS style width.
If the width is assigned to the GridView construct then the EmptyDataRowStyle will take on that width.
I have done some modification and customization with List.aspx under Dynamic Data.
I must have messed up some controls or events somewhere.
Everything works well except that GridViewPager buttons (|<, <, >, >|) does not bring me to the next or previous page. It stays at the same page.
But if I manually type in the page number into the page number field and press enter, it works brilliantly. The gridview refresh to the correct pageindex.
I've got a problem with DetailsView. I've ot Edit Mode, and when i push "Update" button i would like to switch to "ReadOnly" Mode.sView2.ChangeMode(DetailsViewMode.ReadOnly) doesn't work :/
Im using File Upload Control in every row of a GridView.... Like tis
Name UploadFile textBox FileUpload TextBox FileUpload . . Submit
On Submit im first uploading all files present in the grid and then saving other values in database....No Problem when uploading Small Set of filesIf i browse more than 10(approx) files(i.e 10 files in 10 rows) and Submit... Internet Explorer-Page Cannot Be displayed Error occurs but no problem when uploading < 10(approx) files....
