I have created TextBox dynamically, and i need to makd AddHandler on lostfocus event. If i use AddHandler Textb.TextChanged, AddressOf TxtBox_OnChange it work well, but i am passing the textbox value from javascript (popup window) so it is not recognizing the textchange. and if i enter the text by keyboard then TextChanged is calling the the function well. how i can call TxtBox_OnChange on lostfocus on the TextBox.
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I've added AddHandler to dynamic controls in code behind but when I (for example) select an item from the ajax combobox (selectedIndedChanged) nothing happens.
Code Behind Sample:
[Code]....
[Code]....
How can I get those dynamic textbox values from dynamic tables? I am working with a masterpage.
On the me.LoadComplete event of my webpage, I am creating buttons dynamically from session arrays. After I add each button control to the page, I want to use the addhandler to call a custom sub I made. When I click any button though, nothing happens. Relevant code is below.
[Code]....
convert the following VB code to C#:
AddHandler proxy.OpenReadCompleted, AddressOf OnReadCompleted
I've been trying how to make a dynamic controls in ASP.Net and figured out that it was the same on VB.Net like this.
Code:
Dim objCheck As New Checkbox
With objCheck
.Name = ""
The only difference is that instead of "Name" that should be "ID" and "Location" should be "Attribute("style") = "top:100px; left:100px".
Now I'm getting this error saying that "it should be place in a form tag and runat="server"".
BTW, that adding of dynamic controls is place in Page_Load()
Secondly how to add an AddHandler of that newly added control ?
I have an ASP.NET page with code-behind in VB.NET. On the ASPX page I have a Repeater with an asp:ImageButton inside the repeater and I want to catch the clicks on the button. As far as I read I have to use FindControl and then handle the copy of the original control:
Codebehind:
Dim imagebutton1 As ImageButton = repeater.FindControl("btnImage1")
AddHandler imagebutton1.Command, AddressOf ReportTransfer
...
...
Protected Sub ReportTransfer(ByVal sender As ImageButton, ByVal args As CommandEventArgs)
...
End Sub
ASPX page:
<td>
<asp:ImageButton runat="server" ID="btnImage1" ImageUrl="~/images/icons/icon_small.png"
CommandArgument="3" />
</td>
</tr>
</ItemTemplate>
It throws "Object reference not set to an instance of an object" on the AddHandler line and I have no idea why it is doing it (I'm a bit new with VB.NET)
In my application i placed a button.While clicking on button i need to generate one dynamic textbox.For every click i need to generate textbox. Ex: For the first time if i click on button i need to generate textbox.If again i click on the button i need to generate one more textbox.
View 2 RepliesI have a website that sales associates access to view account information with clients. S.A's can only view information for accounts that they are tied to. Some clients have more than one account, S.A's can be tied to more than one account, but not all accounts of one client need to be tied to one S.A.
On the account info pages, I have account numbers (dynamically displayed labels) displayed of other accounts that the account client is associated with, which the S.A's can see. I'm modding this so that if the S.A has viewing permissions of any of the other accounts on that list of accounts, that instead of a label being displayed, a button directing them to that account page will display instead. In order for this to work, I have to attach a security function to the button, otherwise the page will blow out on the S.A's.
So I'm running a piece that is displaying a button instead of a label, which is working fine. My problem is when I try to attach the security event to the dynamically displayed buttons. It seems that the page just posts back and doesn't execute my code at all.
On my Page_Load, I'm running this after the buttons and labels are displayed:
For x = 0 to tblAccountList.Rows.Count - 1
'use a try to target the button, use catch to handle if it's instead a label, only one cell per row.
Try
Dim accountLink as Button = tblAccountList.Rows(x).Controls(0)
Addhandler accountLink.Click, AddressOf Me.PermissionViewCheck
Catch ex as InvalidCastException
Continue For
End Try
Next
I don't have any code checking for postbacks or anything like that, but the "PermissionViewCheck" event never fires and just reposts the page.
how can i focus first textbox on panel which in WebUserControl?
View 2 RepliesI dynamically created Textbox. I don't know the final number of textbox, but I want to get back all the Text value of each textbox. if possible in the code behind. Here is the code for creating my textbox:
[Code]....
I want to get the Text value when I clicked on a asp:Button. If possibe I would like to avoid using Javascipt
I have generated dynamic text boxes for each table row there are 6 text boxes
1. For the first two text boxes the values given by the user should be in valid range(this range comes from the database).User is allowed to enter the value within that specified values only. How to achieve this? I have taken drop down lists but if the values in drop down increases selecting required value is tedious to the user.. (if it is having 1000 values) and while I am retrieving the values I have written query such as Null values ignored. But I am getting NULL values in the dropdown here is the code what I have written,
(Database is Oracle)
If
Not (OledbCmd.Equals(String.Empty)
Or OledbCmd
Is
Nothing)
Then
OledbDA.SelectCommand = OledbCmd
OledbDA.Fill(ds, "textDB")
dt = ds.Tables("testDb") If
(dt.Rows.Count > 0) Then
ddlist.DataSource = dt If UCase(s) =
"NUMBER"
Then
ddlist.DataValueField = "num"
ElseIf UCase(s) =
"NAME"
Then
ddlist.DataValueField ="name"
End If
ddlist.DataBind()
ddlist.Items.Insert(0,
"Select")
ddlist.SelectedIndex = 0 Else
ddlist.Items.Insert(0,"Norecords")
End If
End
If
2. In the rows generated when user presses functional key F3 then the values of the above row(previous row) have to be copied in present row. similarly for F4 column copying. This I achieved through the Java script. But I have many forms requirement is same. where as text boxes id differ. how can I generalize the One function to work for all forms. I wrote as like this.
document.getElementById("No"+ cnt).value = document.getElementById("No" + (cnt-1)).value;
document.getElementById("Name"+cnt).value = document.getElementById("Name" + (cnt-1)).value;
For all the 6 text boxes.where as for column copying I wrote as
document.getElementById(id + cnt).value = document.getElementById(id + (cnt-1)).value;
here id is the text box id Which I am passing.
I have one web control in a page.
Lets say i have a web control that has one <asp:textbox id="action" text="getArticle"> and one <asp:button ...>
If i press the button, a postback will occur but will not load this web control again but it is supposed to load another web control.
How can i obtain the value of the textbox. The issue is that the web control is not loaded so findControl("action") will return null.
What is the correct approach to handle this? Should i use url parameters? Is there another way.
i create a number of dynamic textbox in my page using server control but these control call the javascript function , so , now i want to validate the each dynamic text for validation of name server
View 1 RepliesI want to add multiple textbox value into table in single click.
E.g. :
category subcategory
fruit juiceshop
fruit icecream
I have a code which generated dynamic gridviews based on a column ('c_AnalyticalSystemID"). Now I have a samll problem in passing cell parameter into a textbox which I clicked on a datagridview.
the code is :
[Code]....
Is it correct what I'm doing to get the value of cell into a textbox when clicked on a paticular datagridview.
i have d design for dynamic textbox control ..but now i want to save the data values from the dynamic textbox...refer my following codings for design and based on that suggest me the codings for saving the data...
Default.aspx:
<form id="form1" runat="server" >
<asp:TextBox ID="TextBox1" runat="server" Height="65px" Width="600px"
style="margin-left:3px" ></asp:TextBox>
<div>
[Code]....
I have a webUserControl that is nested inside of another dynamically loaded usercontrol. The nested user control (harddrive) can have multiple iterations, see below for hierarchy When a postback occurs the value in the dropdownlist inside of the nested userControl is saved, but the data in the textboxes is lost. any ideas?
Hierarchy:
insert.aspx
[^--loads] asset.ascx
[^--- loads] harddrive.ascx -- there can be multiple instances of this control inside of the asset.ascx user control
ASPX page code (hosts core dynamic user controls)
[Code]....
ASPX Code behind
[Code]....
I have a placeholder to which I programmatically add DataGrids... In the DataGrids, I programmatically add TextBoxes along with dynamic validations. Somehow, the DataGrids show up, but the dynamic validations don't work. If I set them to static, the blank space for them appears, but still, they wont work.
View 7 RepliesI have a dynamic textbox appearing in a gridview on the row editing function. I have the following code to set the focus tot he textbox:
GridView1.EditIndex = e.NewEditIndex
BindData()
GridView1.Rows(e.NewEditIndex).FindControl("txtTargetAmount").Focus()
This works fine, but I would now also like to select the data in the textbox so the user does not have to select the text before typing, they can just type straight away. I have been trying to use:
txtTargetAmount1.SelectionStart = 0
txtTargetAmount1.SelectionLength = txtTargetAmount1.Text.Length
but this does not work.
I have a two buttons ( button1 and button2 ), a panel ( panel1 ), a label ( labe1 ) on my Web page ( coded with asp.net and c# ). I want to create 2 textboxs on my page when I click on button1 ( button1_click ).
After that, when I click button2 ( button2_click ), I want to get data of textbox (added on runtime) and write them on label1.
This application is part of my master application. This is very important for me...
I am Developing a database web applicationI am Creating web controls on page at runtime i.e in Page_Init event. No textbox are placed on .aspx page at design timeI have a datatable filled with a single record.now i want to bind a textbox (created at runtime) with a column of datatable so that when a page is loaded value in datatable's column is displayed in textbox.Other Important thing i want is when i make any changes in Textbox, It should be reflected automatically in a column to which textbox is binded. So while saving records i can save it directly from datatable. I dont want to write following tedious code before savinge.g.
DataRow mDr = Datatable.NewRow();
mDr["EmpId"] = TxtEmp.Text
mDr["EmpName"] = TxtEmpName.Text
Datatable.Rows.Add(mDr);
i am creating dynamic textbox onRowCreated event and its creating without any issue but the question is how to read value of created textbox when the use hit on update button?
here is my code:
[Code]....
I have gridview created dynamical and added text box to the footer so I can insert into the gridview but I'm using findcontrol but it saying the value is null.
front end
[Code]....
Backend
[Code]....
My Code to be fired During Button
protected void Button2_Click(object sender, EventArgs e) {
foreach (Control ctl in Dynamic.Controls) {
if (ctl is TextBox) {
TextBox tb = (TextBox)ctl;
using (SqlConnection con = new SqlConnection(_connStr)) {
[Code] .....
PlaceHolder
<asp:PlaceHolder ID="Dynamic" runat="server">
</asp:PlaceHolder>
I am not able to find the TextBox inside Placeholder. The Ids are also randomly Generated. I debugged it but the code comes out of foreach loop .
