I've been struggling with this for several hours now so I thought I'd give this forum a try. The problem is that I'm adding two kind of buttons (editBtn and delBtn) which show up fine but they won't fire their respective method when clicked. I also have a third button which works just fine.
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I've got a repeater that's used to display the output of a dynamic report that takes criteria from webcontrols on the page. Within the repeater's ItemDataBound method I'm adding controls (Linkbuttons for sorting by column values) dynamically to the header of the repeater based on values selected in a checkbox list and at this point setting the CommandArgument and CommandName properties of the linkbuttons.
The issue is that when the linkbuttons are clicked they don't fire the ItemCommand event although they are clearly being correctly created and added to the header (there is some additional code to set the cssClass, text etc. and this works as expected.) The first column header in the repeater is set in the markup and the itemcommand event fires correctly on this one only. When the other column headers are clicked the repeater rebinds as programmed, but the columns are not dynamically re-generated.
Nightmare.ascx
<asp:repeater runat="server" id="rptReport" OnItemDataBound="rptResults_ItemDataBound" OnItemCommand="rptResults_ItemCommand" EnableViewState="true">
<headertemplate>
<table>
<tr runat="Server" id="TRDynamicHeader">
<th>
<!-- This one works -->
<asp:Linkbutton runat="server" CommandName="sort" commandArgument='<%# Eval("Name")%?' />
</th>
<!-- additional header cells get added dynamically here -->
</tr>
</headertemplate>
<itemTemplate>
<td><%# Eval("Name")</td>
...
</itemTemplate>
</asp:repeater>
Nightmare.ascx.cs
protected void PageLoad(object sender, eventArgs e){
if (! isPostback){
setupGui();//just binds dropdowns etc. to datasources
}
}
protected void btnRunReport_Click(...){
List<ReportLines> lstRep = GetReportLines();
rptReport.DataSource = lstRep;
repReport.DataBind();
}
protected void rptReport_ItemDataBound (...){
if (e.Item.ItemType == ListItemType.Header)
{
foreach (ListItem li in chbxListBusFuncs.Items)
{
if (li.Selected)
{
th = new HtmlTableCell();
lb = new LinkButton();
lb.CssClass = "SortColHeader";
lb.CommandArgument = li.Text.Replace(" ", "");
lb.CommandName = "sort";
lb.Text = li.Text;
th.Controls.Add(lb);
((HtmlTableRow)e.Item.FindControl("TRDynamicHeader")).Cells.Add(th);
}
}
}
if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
{
//Row level customisations, totals calculations etc.
}
}
<!-- this only gets called when the 'hardcoded' linkbutton in the markup is clicked.
protected void rptReport_ItemCommand(object sender, Eventargs e){
lblDebug.Text = string.Format("Well? What's Happening? -> {0}:{1}", e.CommandName, e.CommandArgument.ToString());
}
(The only thing that can call the runreport routine is a single button on the page, not shown in the code snippet above.)</textarea></p>
<input type='hidden' name='ID[3]' value='82079' />
<input type='hidden' name='URL[3]' value='http://forums.asp.net/t/1472917.aspx' />
<input type='hidden' name='CAT[3]' value='Forms Data Controls' />
<input type='hidden' name='BOARD[3]' value='microsoft' />
<input type='hidden' name='P_DATE[3]' value='Sep 21, 2009 02:16 AM' />
<input type='hidden' name='RANDOM[3]' value='uck4OZUSh' />
<input type='hidden' name='REPLIES[3]' value='6' />
<input type='hidden' name='USER[3]' value='aziz' />
<p><input class=subject type='text' size='90' name='SUBJECT[3]' value='Forms Data Controls :: ValidationGroup causes button not to fire ItemCommand event' /><select name='INDEXED[3]'><option value='1' selected>UPDATE</option><option value='2'>DELETE</option></select>Sep 21, 2009 02:16 AM - Replies: 6 CAT: Forms Data Controls<a target=_blank href="http://forums.asp.net/t/1472917.aspx">View</a></p>
<p> <textarea rows=10 cols=100 name='POST[3]' onfocus='setSelRange(this, 0, 0)'/>
I have a page with a couple of RequiredFieldValidators, each in its own ValidationGroup. One of the RequiredFieldValidator controls is inside a Datalist and the submit button triggers the relevant DataList_ItemCommand. It works just dandy until I add the ValidationGroup to the button, at which point clicking on the button no longer fires the DataList_ItemCommand event. Here is the HTML
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Note that the ValidationGroup name is there, and it is unique. No other ValidationGroups exist with that name. As it stands, this code does NOT fire the DataList_ItemCommand event, so no update occurs. However if I remove the ValidationGroup declaration from the Button control, the event fires properly.
Richard</textarea></p>
<input type='hidden' name='ID[4]' value='140242' />
<input type='hidden' name='URL[4]' value='http://forums.asp.net/t/1621410.aspx' />
<input type='hidden' name='CAT[4]' value='Forms Data Controls' />
<input type='hidden' name='BOARD[4]' value='microsoft' />
<input type='hidden' name='P_DATE[4]' value='Nov 09, 2010 10:04 AM' />
<input type='hidden' name='RANDOM[4]' value='5a4W7DeJ4' />
<input type='hidden' name='REPLIES[4]' value='4' />
<input type='hidden' name='USER[4]' value='aziz' />
<p><input class=subject type='text' size='90' name='SUBJECT[4]' value='Forms Data Controls :: update button in repeater footer wont fire event' /><select name='INDEXED[4]'><option value='1' selected>UPDATE</option><option value='2'>DELETE</option></select>Nov 09, 2010 10:04 AM - Replies: 4 CAT: Forms Data Controls<a target=_blank href="http://forums.asp.net/t/1621410.aspx">View</a></p>
<p> <textarea rows=10 cols=100 name='POST[4]' onfocus='setSelRange(this, 0, 0)'/>
i have a repeater with a button in the footer template which i want to be able to update any of the items that are added (update quantites/totals/delete the item). however the 'UpdateOrderDetails' event never fires when the button is clicked. here is the code within the repeater...
<ItemTemplate>
<tr>
<td>
<asp:CheckBox ID="chkDelete" runat="server" />
<asp:HiddenField ID="hidProduct_Key" runat="server" />
</td>
<td><asp:Literal ID="ltlProduct_Name" runat="server" /></td>
<td><asp:Literal ID="ltlProductOption_Size" runat="server" /></td>
<td><asp:Literal ID="ltlProductOption_Code" runat="server" /></td>
<td><asp:TextBox ID="txtQuantity" runat="server" /></td>
<td><asp:Literal ID="ltlItemPrice" runat="server" /></td>
<td><asp:Literal ID="ltlLineTotal" runat="server" /></td>
</tr>
</ItemTemplate>
<FooterTemplate>
<asp:Panel ID="pnlFooter" runat="server" Visible="False">
<tr id="trTotalExVAT" runat="server">
<td colspan="6">Total (ex VAT)</td>
<td><asp:Literal ID="ltlTotalExVAT" runat="server" /></td>
</tr>
<tr id="trVAT" runat="server">
<td colspan="6">VAT</td>
<td><asp:Literal ID="ltlVAT" runat="server" /></td>
</tr>
<tr>
<td colspan="5">
<asp:Button ID="btnUpdate" OnClick="UpdateOrderDetails" Text="Update" runat="server" />
</td>
<td>Delivery</td>
<td><asp:Literal ID="ltlDelivery" runat="server" /></td>
</tr>
<tr>
<td colspan="6">Total</td>
<td><asp:Literal ID="ltlTotal" runat="server" /></td>
</tr>
</asp:Panel>
</table>
</FooterTemplate>
the 'updateorderdetails' event in code behind is here
Public Sub UpdateOrderDetails(ByVal s As Object, ByVal e As RepeaterCommandEventArgs)
For Each objRepeaterItem As RepeaterItem In rptOrderDetails.Items
Select Case objRepeaterItem.ItemType
Case ListItemType.AlternatingItem, ListItemType.Item
Dim chkDelete As CheckBox = objRepeaterItem.FindControl("chkDelete")
Dim hidProduct_Key As HiddenField = objRepeaterItem.FindControl("hidProduct_Key")
Dim txtQuantity As TextBox = objRepeaterItem.FindControl("txtQuantity")
' check for deletion or update
If chkDelete.Checked Then
Me.Basket.RemoveProduct(hidProduct_Key.Value)
Else
' check for update
If IsNumeric(txtQuantity.Text) AndAlso CInt(txtQuantity.Text) >= 0 Then
Me.Basket.Products(hidProduct_Key.Value).Quantity = txtQuantity.Text
End If
End If
End Select
Next
' update order details
BindOrderDetails()
End Sub
but this procedure is never called when the button is clicked, so wondered what i need to do to get this working
</textarea></p>
<input type='hidden' name='ID[5]' value='49574' />
<input type='hidden' name='URL[5]' value='http://forums.asp.net/t/1522852.aspx' />
<input type='hidden' name='CAT[5]' value='Web Forms' />
<input type='hidden' name='BOARD[5]' value='microsoft' />
<input type='hidden' name='P_DATE[5]' value='Feb 07, 2010 06:01 AM' />
<input type='hidden' name='RANDOM[5]' value='OoKSV9VFH' />
<input type='hidden' name='REPLIES[5]' value='3' />
<input type='hidden' name='USER[5]' value='aziz' />
<p><input class=subject type='text' size='90' name='SUBJECT[5]' value='Web Forms :: ItemCommand not get fire of datalist in IE' /><select name='INDEXED[5]'><option value='1' selected>UPDATE</option><option value='2'>DELETE</option></select>Feb 07, 2010 06:01 AM - Replies: 3 CAT: Web Forms<a target=_blank href="http://forums.asp.net/t/1522852.aspx">View</a></p>
<p> <textarea rows=10 cols=100 name='POST[5]' onfocus='setSelRange(this, 0, 0)'/>
I have imagebutton inside datalist.....the problem is that onclick event of serverside not get executed for only IE ..but its work fine for mozzila....i m not getting what wrong in this code.
aspx code
<asp:DataList
ID="dlProduct"
runat="server"
CellPadding="5"
CellSpacing="5"
Width="300px"
OnItemCommand="dlProduct_ItemCommand"
>
<ItemTemplate>
<p>
<asp:Label
ID="lblName"
Visible="false"
runat="server"
Text='<%# Bind("ModelName") %>'
CssClass="style1"
>
</asp:Label>
</p>
<p>
<strong><span
class="style1">
MRP : Rs.
<asp:Label
ID="mrp"
runat="server"
Text='<%# Bind("mrp") %>'
CssClass="styles"
>
</asp:Label>
</span>
<br
/>
</strong>
</p>
<p>
<strong>
<span
class="style1">Price : Rs.</span>
<asp:Label
ID="PriceLabel"
runat="server"
Text='<%# Bind("price") %>'
CssClass="style1">
</asp:Label> <br
/> </strong>
</p>
<asp:Label
runat="server"
ID="lblQuantity"
Text=""
Font-Bold="true"
CssClass="style1"></asp:Label>
<asp:Textbox
ID="tbQuantity"
runat="server"
Width="22px"
Text="1"
CssClass="nutext"
Visible="false"
></asp:Textbox>
<img
src="images/buynow_btn.jpg"
width="144"
height="58"
runat="server"
/>
<asp:ImageButton
runat="server"
ID="btnAddToCart"
src="images/addtocart.jpg"
width="144"
height="81"
CommandName="AddToCart"
/>
<asp:Button
runat="server"
ID="Button1"
Text="Add to Cart"
CausesValidation="false"
CommandName="AddToCart"
/>
</ItemTemplate>
</asp:DataList>
CS code
protected void dlProduct_ItemCommand(object source,
DataListCommandEventArgs e)
{
Response.Write("hello");
Response.End();
}
I am working on a web application project in which i add a dynamic number of LinkButtons at runtime according to user selection, each link should redirect the user to a specific web page ,but what actually happened is that the last hyperlink is the only one responded! the following code show the declaration :
''''''''Public WithEvents ItemName As LinkButton
''Public Sub AddLinkButtons
''''''''For i = FirstIndex To StopFlag
''''''''ItemName = New LinkButton
''''''''ItemName.Text = Dt.Rows(i).Item(1)
''''''''Me.ContentTD.Controls.Add(ItemName)
''''''''Next
''End Sub
''''''''Private Sub ItemName_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles ItemName.Click
''''''''SelectedItemToFind.ItemFlag = 1
''''''''SelectedItemToFind.SelectedItem = sender.Text
''''''''Response.Redirect("Default.aspx?Main=SearchResult")
''''''''End Sub
When the user selects an "account" we dynamically create a linkbutton with the selected dates. However, the linkbutton onclick handler doesn't fire when the button is clicked.
Dim linkBtn As New LinkButton
linkBtn.Text = "blah"
AddHandler linkBtn.Click, AddressOf linkButtonHandler
linkBtn.ID = panelDatesRencontre.Controls.OfType(Of LinkButton).Count
panelDatesRencontre.Controls.Add(linkBtn)
ScriptManager1.RegisterAsyncPostBackControl(linkBtn)
Dim Trigger1 As New AsyncPostBackTrigger
Trigger1.ControlID = linkBtn.ID
Trigger1.EventName = "Click"
UpdatePanel2.Triggers.Add(Trigger1)
Answer: i make that in page_load, it seems to work
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I have a GridView attached to an ObjectDataSource (returning a DataTable) in a UserControl. The code is really simple. Data comes down fine when the page is first rendered. When I click on Select or Delete (inside TemplateFields), RowCommand is supposed to fire but it doesn't, the page goes straight to Page_Load. I literally have 0 other event handlers that are set on this control and everything else in the codebehind shouldn't even fire if it's a postback. Also on postback, the Select and Delete buttons disappear. It looks like the TemplateFields are still there but they're empty. The data fields (all of two columns) post back fine.
UC ASPX Code:
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Code Behind:
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containing UC:
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And here is the code from the ObjectDataSource:
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I have controls which are added at run-time to a PlaceHolder control on the page which is inside an UpdatePanel. The first refresh of the UpdatePanel is fine but subsequent actions create copies of everything on the page. I get two sets of the run-time added controls on the same page. It's not smart enough to realize that the second set replaces the first set. Has anyone else seen this? Runtime added linkbuttons into UpdatePanel ;fullpostbacks instead of asyncpostback.All parameters of UpdatePanel are default. adding controls runtime like this:
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I have created login page dynamically by using texteditor. Which includes 2 texboxes and 1 Submit button.
Im saving this html in database and loading this html in the login page. Means adding this html to DIV tag innerHtml. My question is how to findout these controls in the code behind page and how fire submit button click event. Or any other alternative to do this?
I have a pretty simple C # page that when the page first loads, a bio is diplayed in that center section based upon sql executed from my code behind. I have 4 link buttons on the page that when clicked, fill that center section with other content based upon which link button they clicked (News, Publications, Contact Info, and Presentations). I was all done, then I thought about using an UpdatePanel to get rid of the annoying "flicker" when the page posts back on the click of the link button.
View 3 RepliesI played around with the Ajax Control Toolkit Framework, and I wanted to know whether it is possible to implement this:
When loading a page, a database query executes that returns a list of titles. this is quite easy so far.According to the list-count and the separate title strings, LinkButtons are rendered vertically on the page. Is it possible to also dynamically create an AnimationExtender for each LinkButton?I'd like to fade out (and delete) every LinkButton as soon as the user clicks on it, and in the same time move the LinkButtons below the faded one up by x pixels.
I add linkbutton controls dynamically to a panel, this works fine, but I also add eventhandlers to them like this.. AddHandler mLink.Click, AddressOf mLink_OnClick But when I click the linkbutton links, the event never happend. I have one updatepanel wrapped around some panels. What could be wrong?
View 3 RepliesI have the following code in Page_Init (actually in a function called by Page_Init in response to a __doPostBack call)
System.Web.UI.WebControls.DropDownList ddlGroup = new System.Web.UI.WebControls.DropDownList();
rowString = rowNumber.ToString();
I am building a web site with visual web developer 2010
I have a class (autoButton) that adds a button to a panel (on Default.aspx) and a handler w/i the same class (classifyEventHandler)
The button appears fine, but when clicked the even doesnt fire, what am I doing wrong?
I tried locating the event handler in default.aspx, but it was not found :P
Imports Microsoft.VisualBasic
Public Class autoButton
Public Sub makeClassifyButton(ByVal theCell As Object)
Dim myButton As New Button
myButton.Text = "classify"
myButton.ID = "b_classify_" + theCell.ID
AddHandler myButton.Click, AddressOf classifyEventHandler
theCell.Controls.Add(myButton)
End Sub
Private Sub classifyEventHandler(ByVal sender As Object, ByVal e As EventArgs)
MsgBox("done?!")
End Sub
End Class
i want load a usercontrol dynamically and pass a string to it ho do i do it..
View 3 RepliesI dymamically add checkBoxList to the page. How can I get checked items from it without adding it again?
View 7 RepliesCan a placeholder control be created dynamically such that you can add controls to it later on?
PlaceHolder ph_grid = new PlaceHolder();
How to get a postback on a button added dynamically
View 3 RepliesI am making a website where the user has to choose some addresses form a list of street names.
I have made a usercontrol Witch I dynamically adds to the website depending on some choices the user makes (Zip, and Streed name) The usercontrol contains a checkbox. When the user clicks a button on the site I would like to find all the usercontrols the user have checked.
The usercontrols is contained in a asp:Panel
I have tried with a foreach loop where I loop all the controls in the panel. It only retun one control.
Then I have tried with at ControlCollection ctrlCol = ContentPanel.Controls;
It only returns a LiteralControl. Then I have tried to loop all the controls on the webpage testing for the type as the usercontrol but no luck
How can I find an loop thru all my usercontrols and find the checked?
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I know that if I re-add the control during Page_Load, the posted values will be repopulated when the page is rendered; however, this is not the case when re-adding the control during the Click event and I need to add the control during an event handler.
Ihave the following code and would like to be able to control the layout of the textboxes and labels so they arent just in a long column. Right now everything works and controls are added, but they are added in 1 column which if you chose 32 from the dropdown the page becomes very long.. so would like to maybe wrap them across 3 columns so that each has at least 10 per column.
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In My page i have a ajax Combolist Box in which if i select any no it generates some controls
here is my code
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Now i want to retrieve all the values Entered By the user in the textBox on btnSubmit_Click
While I am using a "Telerik" control here it shouldn't be any different I guess;
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What happens is that the control is created and rendered;
When I change value in the Combo box a Post-Back happens.
HOWEVER, the event RadComboBoxSelectedIndexChanged does not fire. Also when I am back at the page the new value is not saved; Obviously, i recreate the control every time. If I don't I get a ViewState error. Seems to me that there some ViewState management problem, but I cannot identify it...
How can I get the placement of dynamically added control in any page event.
View 6 RepliesOk, so I'm adding linkbuttons to a page dynamically on page_load.I had it to where the link buttons were redirecting to a page with a query string attached. I was attempting to use the AjaxToolKit's AjaxFileUploader and ran into issues with existing query strings.
So what I'm trying to do now is handle the click event of the linkbutton server side, set 2 session variables and then redirect the page to the same page, but with out appending a querystring so the ajaxfileuploader will work correctly.Here is my linkbutton code:
vb Code:
Dim Lin As New LinkButton
Lin.Text = dr("DeptDesc").ToString
Lin.CssClass = "deptlink"
Lin.ToolTip = CDate(dr("MeetingDate").ToString).ToFileTime.ToString
'Lin.OnClientClick
[code]....
I know I have Lin.PostBackURL and Lin.setAttribute(...). It didn't work with just setAttribute and I saw a post online about someone setting the PostBackURL and it working...
I have a C# web application that dynamically adds user controls to the default page for whatever "mode" the application is in. The problem is that it is not persisting these across postbacks. How do I persist these across postbacks and keep the content of the controls that are in the user control?
For instance, say I have a user control that creates a new tour record. The user clicks on the Tour item from the menu on the default page, it dynamically loads the tours user control. The user then fills out the form in the tours user control and clicks save. This is where the problem happens. When the postback occurs, the web application has no idea that the new tours user control was ever loaded. So, no save takes place because the Save button's click event never even gets fired.
I've made a pag with a content div that has min-height set to 1200 pixels, and a black bacgkround color..
When I add a bunch of lines in the .aspx page (in html) , it works perfectly, it changes the black background height to the required height if it was more than 1200 pixels.
But, if I put a PlaceHolder in side the content div, and add a bunch of lines
dynamically to the PlaceHolder, it doesn't work, the page shows the content with background of 1200 pixels of height, and at the bottom of it no more content background, but continues showing the rest of the lines
outside of the content div..