I want to add DomainUpDown control inside a DataGridView as a separate column. Each time a new row is added,I want that DomainUpDown control also be added. I also want to know when the user click the DomainUp or DomainDown button in DomainUpDown control for each row. Is it possible or not? I am using language vb.net/C#.
View 1 RepliesI have a simple gridview that contains a label in one of the rows. I'm trying to access that label in the RowDataBound event, but for some reason I keep getting a "Object reference not set to an instance of an object." error on the line where I am using FindControl.
I've tried using "gvQReport.FindControl", "e.Row.FindControl", and "Me.FindControl" but nothing works.
[Code]....
I've got a fileupload control inside of a gridview so that each row (item from the database) can have an attachment associated with it. I've got a button next to the fileupload control (besides the default browse... button to select the file) to actually take the file and upload it to a file server.This works great if I use this button "Upload". However, underneath my gridview I have another imagebutton that is outside of the gridview, its just sitting on the form / page.The idea of this "Update" button is when end users make changes to the grid I can simply loop through the grid and update the values they have entered to the database. This also works great.
Now here is my issue assume a user has 3 rows in the grid view. On 2 of these rows he decides to add an attachment but he never clicks the "Upload" button he only uses the standard browse button to select the file. Now instead of clicking the "Upload" button that is on the grid view he ends up clicking the "Update" button outside of the grid thinking that it will save his attachments.
So I decided to write code to grab the fileupload control from the grid using .FindControls("NameOfFileUploadControl") in my Update button loop where I loop through all the rows. Then I check if myFileUploadControl.HasFile property to see if there exists a file and if there does upload the file then continue with the code.
The issue is when I click this "Update" button .HasFile always returns false even though I can see the text string of the path in the fileuploadcontrol textbox (the standard one next to the browse button). Is it because this goes back to the page load event and checks if it is a post back? What causes this and how can I fix it?
edit:Im adding some code because im still confused with this
Protected Sub SaveGrid()
For Each Row As GridViewRow In Me.gvLineItems.Rows
Dim f As FileUpload = CType(Row.FindControl("fuAttachment"), FileUpload)
[code]....
This method gets called on a click of a button... The fileupload control is in an of a gridview that is wrapped inside of an UpdatePanel:
<asp:FileUpload Width="90px" Font-Size="xx-small" ID="fuAttachment" runat="server" />
So why is this property always returning false?
I want to control domainUpDown as spinner to control value from 0 to 800 so that if i hit its upper arrow it adds 1 into current value...
View 1 RepliesI have a problem with My dataGridVew. i am trying to export data from my DB to excel fie. it's a small page where there are only data grid view and button to export like this :
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
[CODE]...
When i click on the button error message is coming : "Control 'GridView1' of type 'GridView' must be placed inside a form tag with runat=server.???" even i have placed it in form ?
I have written a web usercontrol (ascx). Inside, there is a Panel that I want to show/hide on click of a hyperlink inside the usercontrol. Normally, this is easy just by doing something like this (the onclick attribute is added to the hyperlink on prerender):
[Code]...
I am making an invoicing application. I have a label (lblCost) inside of a UserControl (InvoiceEntry) inside of a FlowLayoutPanel (pnlEntries). InvoiceEntry represents a line item on the invoice, and pnlEntries is the "body" of the invoice. pnlEntries can hold several InvoiceEntry controls.
I am attempting to sum all of the lblCost values from each InvoiceEntry control to make a subtotal, and I want that subtotal to change automatically if costs are changed (e.g., a change in quantities being ordered). Is there a way to handle when the lblCost.Text property of any of the InvoiceEntry controls contained within pnlEntries changes?
InvoiceAdd.vb:
' Instantiate objects of the various database interaction classes.
Private mCustomer As New Customers
Private mItem As New Items
[code]....
I have a gridview and I add some buttons programmatically to this grid. I have an edit and delete button right next to eachother and I simply want to put a space between them programmatically. Any idea how to do that? Here is the code to add the buttons.
[Code]...
In datalist, I hve populated Grdiview.In Gridview , I hve checkboxes. Now i want to get the selected checkboxes names to be insrted into the database when clicking the button.so far i have tried like this
Protected Sub butn_Submit_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles butn_Submit.Click
Insert_CATEGORY_Info()
[code]....
the result is
"foundObject reference not set to an instance of an object. "
I've got a button inside a gridview to remove that item from the gridview (its datasource is a list). I've got the list being saved to session anytime a change is being made to it, and on page_load check if that session variable is empty, if not, then set that list to bind to the gridview.
Code Behind:
Public accomplishmentTypeDao As New AccomplishmentTypeDao()
Public accomplishmentDao As New AccomplishmentDao()
Public userDao As New UserDao()
[Code].....
I have a gridview that appears in a modal popup that is generated dynamically and is bound to a dynamically generated SqlDataSource. I did this to hopefully take advantage of the gridview's automatic editing capabilities. My problem is that when the edit button is clicked the modalpopup closes due to a full postback in spite of the fact that my gridview is in an update panel. I looked at solutions here and here but neither fixed the problem. I've also tried every combination under the sun regarding the positioning of the ModalPopupExtender in relation to the update panel etc, and have tried changing UpdateMode to conditional as well.
Markup:
<span class="none"><asp:Button ID="btnDummy" runat="server" Text="Dummy" /></span>
<ajax:ModalPopupExtender ID="mpLabel" runat="server" TargetControlID="btnDummy" BackgroundCssClass="modalBackground" PopupControlID="pnlLabels"></ajax:ModalPopupExtender>
<asp:Panel ID="pnlLabels" DefaultButton="btnOk" Style="display:none;" runat="server">
<div style="background-color:#fff;border:1px solid black;padding:7px;">
[Code] .....
I am using a gridview in my form.aspx page. The textboxes in each row of the gridview are to be populated from a datagrid upon clicking a particular field of the datagrid
View 1 RepliesHere is the asp code for the design, I have a gridview that lists all Leave dates selected w/ 2 radio buttons . The user may choose if it is for whole day or halfday which are represented by a radio button. I want to get the value of each row if the user wants half day or whole day for me to calculate the leave days.
-I can already get the value but on the first 5 rows only since my gridview is paged with paging size of 5. how can i get the value for the other items if I have more than 5?
<asp:GridView ID="gvDates" runat="server" AllowPaging="True"
AutoGenerateColumns="false" OnPageIndexChanging="gvDates_PageIndexChanging"
onrowdatabound="gvDates_RowDataBound" OnRowDeleting="gvDates_RowDeleting"
PageSize="5">
[Code].....
How can I access rep_DataSimilarToBacthid ? I need to bind the GridView and call GridView RowDataBound or InitializeRow
[Code]...
I am using VB.Net with Framework Version 2.0.
I have a gridview and the one coulmn is a image column. How would i change the DataImageUrlFormatString value in my code behind?
i tried doing this but it does not work.......
((ImageField)(GridView2.Rows[0].Cells[0].FindControl("ID"))).DataImageUrlFormatString
= "~/createthumb.ashx?gu=/pics/gmustang06_2.jpg";
[code].....
I have a GridView which is continually rebound using a timer and is within an updatePanel so the page doesn't refresh continually (each row has a countdown sequence so the gridview needs to continually get updated). Inside the gridview i have an imagebutton with an OnClick method. Previously to get the OnClick method to fire I would make sure the gridView wasn't in an UpdatePanel and that the pageload databinding of the gridview was in an "If Not IsPostBack". With the Timer though I can't have the gridview binding an an "If Not IsPostBack" and it needs to be in an UpdatePanel. Is there a way to use an UpdatePanel and "If Not IsPostBack" and still get the OnClick method to be called?
Here's some of the code, if my explanation didn't make complete sense:
UpdatePanel/Timer/GridView
<asp:UpdatePanel runat="server">
<ContentTemplate>
<asp:Timer ID="timerCountDown" runat="server" Interval="1000" OnTick="timerCountDown_Tick"></asp:Timer>
[Code] ....
I have an asp.net gridview that is originally bound to a sqldatasource control, but when the user presses an external button, it instead gets the contents of a datatable rather than a SQLdatasource control. I therefore had to write code in the PageIndexChanging event of the gridview to allow for paging. My code is as follows:
Protected Sub gvEvents_PageIndexChanging(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewPageEventArgs) Handles gvEvents.PageIndexChanging
gvEvents.PageIndex = e.NewPageIndex
gvEvents.DataBind()
This worked beautifully until I added an AJAX update panel so the whole page wouldn't postback every time it paged, and paging stopped working. I debugged it and discovered that it is actually calling the PageIndexChanging event, but nothing is happening. I searched the web and found a few people with the same problem, but their solutions did not work for me. There was one on this site whose problem was solved by the following:
In PageIndexchanging event, where you bind data to grid, make sure, data is again fetched from the DB
I don't know what that means; my data was being bound as demonstrated above. I have "enable paging" set to true and EnableSortingAndPagingCallbacks set to false.
I am including my markup for the updatepanel below.
<asp:UpdatePanel ID="UpdatePanel2" runat="server" UpdateMode="Conditional">
<Triggers>
<asp:AsyncPostBackTrigger ControlID="ibtnSearch" />
</Triggers>
[CODE]...
I have a DataList inside another DataList. I want to access the child DataList "dlQuestion" events, ItemDataBound event. Also, I'm tring to find the control LableControl "lblQuestion" in the child datalist. How do I do that? Here's the mark-up:
<asp:DataList ID="dlSection" runat="server" Width="100%">
<ItemTemplate>
<div>
[code].....
I would like to add a property to the BoundField control that will change rendering as show below.
<td>My Bound Text></td>
Should become
<td><span>My Bound Text</span></td>
This is all I have so far...
Public Class BoundField
Inherits System.Web.UI.WebControls.BoundField
Dim _ellipse As Boolean[code]....
I have the same problem as this poster, however I am using a .net gridview and would like render my html to use the fix offered here.Using CSS to create table cells of a specific width with no word wrapping. EDIT I think I may be going about this all wrong, maybe you don't change the rendering by extending the BoundField, but rather add the properties to the boundfield then change the way the gridview renders its fields based on the properties of those fields.Which also leads me down the path of control adapters,
I am trying to link a DomainUpDown with a Text Box.As in, when I choose something from the Domainupdown, I want a number to automatically appear in the text box.For example:
If I choose the country USA from my domainupdown, I want the number 1 (as it is the international calling code for the us) to appear in my text box.So far I have tried:
If domainupdown.item is "USA" then textbox1.Text = "1"
but it's not working,
I want a working code for---
Displaying time in DomainUpDown Box like--
02:33:12 AM/PM
User would be able to select any valid time. And Just Display the time selected by user in messagebox.. I am using VS 2003 1.1 framework.
Trying to use the domainUpDown button. After you insert the button and double click on it you get:
Private Sub DomainUpDown1_SelectedItemChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles DomainUpDown1.SelectedItemChanged
End Sub
I know there is an "instance" for each of the up or down button in the domainUpDown tool. I just wanted to know how to increment one for the up button and decrement one for the down each time it is pressed.
How to apply textbox blank validation on button click inside gridview in javascript?I have a gridview that contains 2 textboxes and a save button in each row.I want to validate the textboxes on corresponding save button click.
[Code]...
I've created my own ascx control with button inside it. Now I'm using this control inside other control. (In my case it is a webpart). What I would like to do is program button.click logic from my custom control inside webpart
View 4 RepliesI have an asp.net usercontrol which represents a "popup" dialog. Basically, it's a wrapper for the jQuery UI dialog which can be subclassed to easily make dialogs. As part of this control, I need to inject a div into the page the control is used on, either at the very top or very bottom of the form so that when the popup is instantiated, it's parent is changed to this div. This allows "nested" popups without the child popup being trapped inside the parent popup.
The trouble is, I can't find a safe way to inject this div into the page. A usercontrol doesn't have a preinit event, so I can't do it there, and calling Page.Form.Controls.Add(...) in Init, Load or PreRender causes the standard exception "The control collection cannot be modified during DataBind, Init, Load, PreRender or Unload phases."
I thought I had found a solution by using. ScriptManager.RegisterClientScriptBlock(Page, Me.GetType, UniqueID + "_Dialog_Div", containerDiv, False) which seemed to work well normally, but recently a coworker tried putting an UpdatePanel inside the dialog and now she's getting the error "The script tag registered for type 'ASP.controls_order_viewzips_ascx' and key 'ctl00$ContentBody$OViewZips_Dialog_Div' has invalid characters outside of the script tags: . Only properly formatted script tags can be registered."
How are you supposed to add controls to the pages control collection from inside a user control?
Currently have created/extended the DomainUpDown class hoping I would be able to add one simple feature: I was hoping to be able to show a tooltip when the user mouses over the control that would show the next and previous item in the list. However the DomainUpDown class does not have a mouseenter event and overriding the mouseenter method does not seem functional. Is there something I am missing or do I just need to create my own MouseEnter event?
Private tips As New ToolTip With {.AutomaticDelay = 0, .AutoPopDelay = 0, .InitialDelay = 0, .ShowAlways = True, .ForeColor = Color.WhiteSmoke, .BackColor = Color.Black}
Protected Overrides Sub OnMouseEnter(ByVal e As System.EventArgs)
MyBase.OnMouseEnter(e)
Console.WriteLine("list entered") 'testing purposes, never is printed on mouse enter
tips.SetToolTip(Me, "Up = " & Me.Items(Me.SelectedIndex - 1).ToString & vbLf & "Down = " & Me.Items(Me.SelectedIndex + 1).ToString)
End Sub
I have created a user control and am able to add it to a page with out any problems, but how to I reference a control that is inside of the user control For example if I have a text box inside the user control and want to set the text property through code or get the text property, How can I reference the control inside the user control. I have tried a few different things but nothing seems to work when I type the usercontrolname.control.property I just get an error.
View 3 RepliesI have a gridview inside a ModalPopUpExtender, the grid view have the button add delete and edit when i clic one of the button of the gridview the popup is closed. I wont to close the popup when the close button is clicked.This is the asp.net part:
< cc1: ModalPopupExtender ID="NamePopup" runat="server" PopupControlID="OptionPanel" TargetControlID="btnD" BackgroundCssClass="mpBg" DropShadow="true" OkControlID="btnSavePopup" CancelControlID="btnPostCancel" >
[code].....
I need to merge two rows asp.net gridview control in the runtime.
View 1 RepliesI have a gridview that uses a stored procedure for its select statement. The stored proecedure accepts a varchar and a bit. I want a checkbox outside of the gridview to change the value of the bit. I've set the parameter to the checkbox but it doesn't seem to be working.
View 1 Replies