Web Forms :: Finding Dynamically Created TextBox?

Jan 12, 2010

I'm using multiple file upload. I'm following this link [URL] . I can able to save multiple files. Now i want add textbox to all file upload. I can add HTML Text box. I don't know how to find that? I'm using following code to upload multiple files..

[code]....

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Jun 22, 2010

I created dynamically a table with 3 rows not by using table tag. I need to find these rows in scripting, in button click, if any of these rows is empty then need to generate an alert message like enter current row.

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JQuery :: Finding A Dynamically Created Server Control?

Jan 12, 2011

I've created a bunch of asp:hiddenfields dynamically at runtime in an asp.net page.

My question is this:

How do I find those hidden fields?

I have an event attached to a control that fires a javascript function, and that's where I am attempting to use JQuery to find the hidden field associated with that control.

[Code]....

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Oct 6, 2010

I want to dynamically create asp textbox objects (as well as other types) with id's named sequentially up to a number the user decides but I'm having a problem getting my code behind to recognize these dynamically created objects. In "div1" below I manually create the objects and I have no problem getting the values in Sub cmdSaveDiv1Info_Click. My dynamically created code generated in Page_Load routine is identical to that in "div1" except for the textbox ID's yet when I try to retrieve the values the same way in cmdSaveDiv2Info_Click I get an "object reference not set to an instance of an object" error on the "Dim d2Year as String.." line.

[code]....

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Web Forms :: Same TextChange Event On Every TextBox That Is Created Dynamically

Feb 25, 2010

I have a page that contains many textboxes. It is like 9 textboxes for everyday in a month, and their numbers and IDs are changing dynamically for every month change on the page. I'm creating them in many for loops like;

[Code]....

This was just an example not real code. Now I want to add those textboxes the same TextChange event. How can i do it? I'm a little bit newby at asp.net. Sorry about that...

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Web Forms :: Obtain Content From Dynamically Created Textbox?

Nov 6, 2010

I am trying to create a comment system in which the comments will be displayed and will have one level of reply to the comment.

I now have text boxes and buttons dynamically created under each comment for users to submit replies to each individual comment.

I am having difficulty obtaining the contents entered by the user within the text boxes.

[Code]....

The GetComment method is called at pageload. I am able to obtain the Id of the comments that the reply corresponds to, but not able to obtain contents entered by user in the reply text boxes, they show up as blank.

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Jul 29, 2010

how can I allow only alpha characters into a dynamically created textbox? I don't think I can use a regular expression validator for this issue. Unfortunately, I cannot use Ajax for this issue either.

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Forms Data Controls :: Dynamically Created TextBox In GridView Does Not Show Updated Value After Postback?

May 10, 2010

I have a grid view that is dynamically created.In which every cell in the girdview has a 2 textbox (cTxtboxQty,ctxtWorkOrder) and 2 label.

When user click on the cell, a pop up come out and user are able to change the text inside the cell and click save.After that the pop up close and changed data immediately reflected on the screen.

My problem is:

After my data are changed and updated to database on the pop up page and having it post back to the parent page , my dynamically created textbox in gridview retain old value even new value has been assigned to it.

This sound very weird but i have no idea how to solve this.

My client side code is as below :

[Code]....

[Code]....

[Code]....

[Code]....

I have tested many times and find out that it might be the page hold the old value in memory, so that even we have updated the textbox value, after postback, it still keep and show the old value?

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How To Read A Dynamically Created Textbox

Jan 20, 2011

<asp:GridView ID="GridView1" runat="server" >
<asp:TemplateField HeaderText="Token" SortExpression="Token" HeaderStyle-Width="100px">
<ItemTemplate>
</ItemTemplate>
</asp:TemplateField>
</asp:GridView>

update:

after i view the source code of the page thsi is what i see the id of a textbox that i have created dynamic.

ctl00_ContentPlaceHolder1_tabControl_tabUsers_MyControl1_gv_ctl02__token0_3

OnRowUpdating:

TextBox _token = gvOrg.Rows[e.RowIndex].Cells[7].FindControl("_token " + e.RowIndex + "_" + rowId) as TextBox;


Update end:

i am adding few textbox dynamic in OnRowDataBound and whe i try getting the value then i am getting null

here is my code:

[Code]....

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C# - Textbox Dynamically Created Not Found?

Jan 15, 2010

I use this method for inserting a textbox in a tablecell

[code]....

But it doesn't work. beacuse it doesn't find the textbox created previously.

I've put also EnableViewState="true" in the file aspx.

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How To Use JQuery On Dynamically Created Textbox

Sep 27, 2011

i am creating Textboxes at Runtime with something like this

Code:
Dim cnt As New TextBox
cnt.ID = "cont_" & x
If multiline Then
cnt.TextMode = TextBoxMode.MultiLine
End If

These are dynamically created fields. so what i want to do is to use this following JQuery on this textbox

Code:
$(document).ready(function() {
$("#contentbox").keyup(function() {
var box=$(this).val();
var main = box.length *100;
var value= (main / 145);
var count= 145 - box.length;
if(box.length <= 145) {
$('#count').html(count);
$('#bar').animate({"width": value+'%',}, 1);
}
return false;
});
});

and what this function does it count the number of Characters that have been typed in a Textbox. so i am displaying the remaining characters. So that is working fine on my example because the Element is known at Early Binding. Now my question is what if the textbox is created dynamically ?

Code:

contentbox

this is the name of the Textbox in my example. how do we use a J Query in Dynamically created Textbox.

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How To Save The Dynamically Created Textbox Value In Database

Oct 15, 2010

how can store the text value of dynamically created textbox in database.

using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Data.SqlClient;
public partial class frndslambook : System.Web.UI.Page
{
SqlConnection con = new SqlConnection(ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString);
SqlCommand com1;
SqlCommand com;
SqlDataReader dr1;
static string[] exp;
static string exp1;
static long c;
TextBox[] textBoxArr = new TextBox[c + 1];
protected void Page_Load(object sender, EventArgs e)
{
com1 = new SqlCommand("Select * From slambook Where username=@username", con);
com1.Parameters.Add("@username", SqlDbType.NVarChar).Value = Session["userfrndname"].ToString();
try
{
if (con.State == ConnectionState.Closed)
con.Open();
dr1 = com1.ExecuteReader();
if (dr1.Read())
{
string exp1 = dr1["slambookfields"].ToString();
long c = Convert.ToInt64(exp1.Length);
Label[] l1 = new Label[c + 1];//array of lables
TextBox[] textBoxArr = new TextBox[c + 1];//array of textboxes
exp = (exp1).Trim('^').Split('^');
for (int i = 0; i < exp.Length; i++)
{
Panel frndstextBoxLabelGroup = new Panel();
l1[i] = new Label();
l1[i].ID = "frndslambooklabel" + i.ToString();
l1[i].Text = exp[i].ToString();
l1[i].Visible = true;
textBoxArr[i] = new TextBox();
textBoxArr[i].ID = "frndslambooktextbox" + i.ToString();
textBoxArr[i].Visible = true;
//Initializing the TextBox so that it is not rendered in the browser
frndstextBoxLabelGroup.ID = "frndstextBoxLabelGroup" + i.ToString();
fspfrndslambook.Visible = true;
// Pnl_TextBox.Controls.Add(br);
frndstextBoxLabelGroup.Controls.Add(l1[i]);
frndstextBoxLabelGroup.Controls.Add(textBoxArr[i]);
fspfrndslambook.Controls.Add(frndstextBoxLabelGroup);
}
}
}
catch (Exception exc)
{
}
finally
{
con.Close();
}
}
protected void fsbfill_Click(object sender, EventArgs e)
{
com = new SqlCommand("Insert Into slambookans (slambookfields_ans,sender,receiver) Values(@slambookfields_ans,@sender,@receiver)", con);
for (int i = 0; i < exp.Length; i++)
//{
//textBoxArr[i] = new TextBox();
com.Parameters.Add("@slambookfields_ans", SqlDbType.NVarChar).Value =textBoxArr[i].Text;
}
com.Parameters.Add("@sender", SqlDbType.NVarChar).Value = Session["username"].ToString();
com.Parameters.Add("@receiver", SqlDbType.NVarChar).Value = Session["userfrndname"].ToString();
try
{
if (con.State == ConnectionState.Closed)
con.Open();
int i=com.ExecuteNonQuery();
if(i!=0)
Response.Write("Success");
else
Response.Write("Fail");
}
catch(Exception exc)
{
}
finally
{
con.Close();
}
}
}

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AJAX :: Can't Access Dynamically Created Textbox In Postback

Sep 20, 2010

I have a script which creates a dynamic textbox (and more) in an AJAX async post back. But when I try to acess the textbox I am told "Object reference not set to an instance of an object". I have been strugleing with this for a long time. This is written in C# .Net 4. The line causing the problem is the very last one where I have tbGameName.Text.Trim()

[Code]....

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Postback Lose Value From Dynamically Created Textbox Gridview?

Aug 25, 2010

I dynamically create gridview, and in this grid I have template field also

field.HeaderTemplate = New GridViewTemplate(ListItemType.Header, col.ColumnName)
field.ItemTemplate = New GridViewTemplate(ListItemType.Item, col.ColumnName)
grdEmpty.Columns.Add(bfield)

but when enter some value in text box in this template field i lose value on postback. And also on postback I lose all template field and i must re-create this grid.

My goal is: I have button and i want to add new row in this grid, but i want to have old value also.

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Using FindControl To Locate TextBox In Dynamically Created Template Field?

Jun 2, 2010

My problem is as follows. I have a custom GridView control where I generate the Template fields for each column. I'm using someone elses class that extends the Itemplate and returns lables for ItemTemplate, and TextBoxes for EditTemplate.

I need this in order to implement bulk edit for the gridview where users press button Edit and all fields become textboxes, they can then change the values, and click Update button at which point I need to be able to retrieve the values from the TextBoxes in these Template Fields.

What I have tried thus far: when user clicks Edit button, my dynamic code builds the columns and specifies that the Template field is an EditTemplate, it then adds these columns to the grid view. The gridview shows the textboxes with all values retrieved from sqldatasource.

When I press the Update button, the page does a postback, as I can see Page_Load event fire, I check for a flag that I previously set when the Edit button was pressed (I store it's value in View State) and call the Update method.

In it I iterate throught the gridview rows collection, check that the RowType of each row is DataRow and call GridView.UpdateRow(i, false), passing each rows index to the UpdateRow method.At this point I have tried everything I can to find the values stored in the textboxes, but I cannot find any of the textbox controls.

I've tried using the current row's FindControl method and specifying the name of the textbox field,I've tried using Request.Params method where I can tried passing the client id, as it seen in the View Source of the page such as this

Request.Params["grid1$gvData$ctl02$MMCODE"]

Still no luck, I've tried going up an down the Row's cells, controls collections, it seem to list the counts for rows correctly, the same goes for the amount of cells for each row, but at no point was I able to actually locate any controls such as textboxes or anything else and retrieve any values from them.

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AJAX :: Unable To Maintain Focus On Dynamically Created Textbox

Jun 30, 2010

i have a WSS 3.0 Webpart that contains an UpdatePanel with a customized SPGridView. I want to provide instant filtering of data by adding a textbox below the column header when the column shall be filterable. There is a jQuery based solution for this on the net, but it's totally client side and doesn't work with paging, so i tried it on my own.

In the CreateChildControls of my SPGridViewExt class i have :

[Code]....

I've also overridden the DoFilterPostBackEventProcessing method to create a "[ColumnName] LIKE '%[textbox.value]%'" filterExpression for my datasource which also creates the LIKEFILTER_COLUMN and LIKEFILTER_VALUE ViewState Items so i can identify the textbox that should refocus on after the postback. The filtering itself works great, but whatever i try, i am not able to set the focus to the textbox after entering the first letter.

[Code]....

All these four methods don't work. The registerstartupscript call doesn't even render the script when i search the page source after postback. I also tried to add a HiddenField to my webpart and set it's value to the control id of the textbox in onfocus, then register a startupscript in OnLoad that focuses the control if the HiddenField has a value, but to no avail.

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Data Controls :: Save Text Of Dynamically Created TextBox

May 7, 2015

i can add the dynamic textbox in dynamically created html but can not get the value of dynamically added textbox.

there is code what i do

protected void txtNoOfTypes_TextChanged(object sender, EventArgs e)
{
int n = Convert.ToInt32(txtNoOfTypes.Text)+1;
for (int i = 0; i < n; i++)
{
Label MyLabel = new Label();
MyLabel.Text = "Type" + " " + ViewState["num"] + i + " " + ":" + " ";

[CODE]...

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Data Controls :: Retain TextBox Focus In Dynamically Created GridView?

Feb 25, 2016

I have created dynamic gridview with textbox

here is the link:

[URL]

but whenever i created new row i have lost focus on textbox. Instead of focus on new row (first column) cursor focusing on somewhere else.

how i can focus on textbox in new row.

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Web Forms :: Use Dynamically Created Controls Such As A Checkbox List And Fill The Values Dynamically?

Sep 28, 2010

I'm creating an quiz application which queries the database and extracts the questions and choices. I use dynamically created controls such as a checkbox list and fill the values dynamically. How do I do this? Right now I have these functions:

array_random_init(); this creates a 10 element integer array from 1-20 - extract_question(i): this extracts a question indexed at i in DB, I created the controls and set the appropriate text in this function. - validate_question(i); this is called by button_click and validates the question i according to DB.

I understand I have to recreate the controls in Page_init on postback, but what should it look like? Do I need to add "if IsPostBack" in page_init, or do I create the controls in page_init() and reset their properties in page_load when I use extract_question(i)? Also, I cannot seem to clear the selected boxes on postback, I added page directive "enableviewstate=false" but it doesn't work.

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Web Forms :: How To Use AddHandler To Dynamically Assign Events To Dynamically Created Buttons

Feb 14, 2011

I 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.

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Sep 28, 2010

I have a gridview with a template field column. In the edittemplate of that column i have a textbox. In the next column of the gridview i have a button. When i click the button i need to find the value of the before mentioned textbox. I do it like this:

gridview1.selectedrow.findcontrol("textbox1"). This sometimes work just fine and without a problem but sometimes it seems it can't find that control and throws a null reference object. The error it's random like i said, sometimes just work and other just don't work...

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Dec 17, 2010

I would like to know whether it is possbile to have a script that allow user to focus one from textbox to another textbox by onkeypress event.

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Web Forms :: Getting Value From The Textboxes Which Created Dynamically?

Feb 15, 2010

I'm creating 14 textboxes for every day in a month and user can select the month so i have o create them dynamically. But i can't reach the values in the textboxes.

When i don't create them dynamically like

<asp:TextBox ID= "TextBox1" name="TextBox1"> </asp:TextBox>

I can get the value from the C# side by using the

((TextBox)Page.Form.FindControl("TextBox1")).Text

However this moethod doesn't work for the textboxes that i created dynamically. I'm creating them in a loop it's something like;

[Code]....

Then i add the text box to the necessary places at my table.However i can't reach the textboxes when i use the same method

((TextBox)Page.Form.FindControl("!A uniqe ID!"));

It gave a null value...

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My Code is:

.aspx
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<table>
<tr>
<td>
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Web Forms :: Need To Be Created Dynamically At Runtime?

May 24, 2010

I have a web user control with dynamic LinkButton think an event in which you assign events to them (LinkButton.Click + = new EventHandler (Method)).The problem is that these events do not run, I did test creating and if you run statically.Why is it??I need to be created dynamically at runtime.For Examples :

for (int i = 0; i <= 5; i++)
{
Button boton = new Button();

[code]...

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