I am trying to create a dynamic ModalPopupExtender from code behind that when i click on a button it pops a panel with a button in side.
i created a panel (named panel) with a button in side called ButtonOk (button.id ="ButtonOk")
but when i click the event handler of the first button (Button_Click) nothing happens please help me my code is:
protected void Button_Click(object sender, EventArgs e)
{
HiddenField hf = new HiddenField();
hf.ID = "hdnField";
AjaxControlToolkit.ModalPopupExtender modalPop = new AjaxControlToolkit.ModalPopupExtender();
modalPop.ID = "ModalPopupExtenderSelectFilds";
modalPop.PopupControlID =Convert.ToString(Page.FindControl(Convert.ToString(panel.ClientID))); //panel.ID;
modalPop.TargetControlID = Convert.ToString(Page.FindControl(Convert.ToString(hf.ClientID))); //"hdnField";
modalPop.OkControlID = "ButtonOk";
modalPop.BackgroundCssClass = "modalBackground";
modalPop.BehaviorID = "modalPopupExtenderSelectFilds";
modalPop.Show();
}
For help of other users, you will just have to add modalPop to area where control will be added to page
For example, this should be added at end of code
panel1.Controls.Add(modalPop);
check this code to add controls to panel:-
this.panel1.Controls.Add(modalPop);
In code behind, you can make this:
if (true)
{
var script = #"Sys.Application.add_load(function() { $find('behavoirIDModal').show(); });";
ScriptManager.RegisterStartupScript(this, GetType(), "ShowPopup", script, true);
}
edit this: behavoirIDModal
Related
When I click btnGDynamicCont I want to load the first set of controls, then on each further click of that button, add a new control (textbox) alongside the other ones, so each time it is clicked I am adding a new textbox across state.
Do you know where I should add the creation of the new textbox in order to keep it after each postback?
{
protected void Page_Load(object sender, EventArgs e)
{
if (Convert.ToString(ViewState["Generated"]) == "true")
GenerateDynamicControls();
}
public void GenerateDynamicControls()
{
TextBox txtDynamic = new TextBox();
txtDynamic.ID = "txtDynamic";
txtDynamic.Text = "Dynamic TextBox";
Page.Form.Controls.Add(txtDynamic);
TextBox txtDynamic2 = new TextBox();
txtDynamic2.ID = "txtDynamic2";
txtDynamic2.Text = "Dynamic Textbox";
Page.Form.Controls.Add(txtDynamic2);
}
protected void btnGDynamicCont_Click1(object sender, EventArgs e)
{
if (Convert.ToString(ViewState["Generated"]) != "true")
{
GenerateDynamicControls();
ViewState["Generated"] = "true";
}
else
{
Response.Write("<h2>Controls are already exist in page</h2>");
}
}
}
}
Dynamic controls are usually recreated at the Page_Load method. For more information, please refer to the Dynamically Created Controls in ASP.NET article.
You can refer the below link where a very similar issue is addressed.
unable to add more than one server control dynamically in asp.net
Everytime a postback happens, you should recreate the already existing controls(dynamically added) in your page_load event and the new controls are to be created in the button_click event.
Use some logic to generate ids for the controls for the viewstate to be maintained. VIEWSTATE will be taken care automatically if the ids of the controls generated before and after postback are the same.
One way to keep track of the number of textboxes is to store the count in session.
I have a Button1 and a textbox. When i put a value in textbox and click this button then a new button is created with the value filled in textbox but i want that when again i click Button1 and there should be one more button or we can say how to move previous button's position?
This is code for Button1 in .aspx.cs
protected void Button1_Click(object sender, EventArgs e)
{
Button btnNew = new Button();
btnNew.ID = "btnNew";
btnNew.Text = textBox1.Text;
form1.Controls.Add(btnNew);
}
Please help me to solve this.
Thanks in advance.
You could probably do something like this with JavaScript/jQuery:
$('#button1').click(function() {
$('#button2').css('position', 'absolute');
$('#button2').css('top', '50px');
});
etc. You should provide more info as suggested by Matt.
I'm trying to create a button dynamically on asp.net,but I can't add the event to it.What is wrong or missing below?
Thanks in advance
$
Button btn2 = new Button();
btn2.ID = "btnEdit";
btn2.Text = "Edit Member";
btn2.Click += new EventHandler(btnEdit_Click);
form1.Controls.Add(btn2);
I also tried like this:
$
Button btn2 = new Button();
btn2.ID = "btnEdit";
btn2.Text = "Edit Member";
btn2.Attributes.Add("OnClick","btnEdit_Click);
form1.Controls.Add(btn2);
read the article about the asp.net webforms life-cycle http://msdn.microsoft.com/en-us/library/ms178472.aspx. you have to create/recreate your controls everytime when loading the page (e.g. OnLoad-Method)
http://www.asp.net/web-forms/videos/aspnet-ajax/how-to-dynamically-add-controls-to-a-web-page
I think your trying to mix server side and client side events here.
The html attribute OnClick is a client side, when a user clicks on the button it fires a piece of JavaScript
The server event OnClick happens when a user clicks a button and it posts back to the server, which allows you to hook functions (server side) into that event.
Are you looking for server side or client side?
To add a client side event you can do
btn2.Attributes.Add("onclick","my_javascript_function");
To add a server side event you can do
btn2.Click += new System.EventHandler(this.MyMethod);
Where this.MyMethod is a method already seutp to handle the server side button click.
If I were right, you create buttons in Page_Load.
If it is check for postbacks.
if(!postback)
{
create your buttons.
}
Create a method for adding all Your dynamical controls as below
public void AddControls()
{
Button btn2 = new Button();
btn2.ID = "btnEdit";
btn2.Text = "Edit Member";
btn2.Click += new EventHandler(btnEdit_Click);
form1.Controls.Add(btn2);
}
and then call that method in Page_Load() Event & out side of the IsPostBack block as below
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
}
AddControls();
}
because for dynamically added control's view state will not load before Page_Load() evnt. go through this link for more info http://msdn.microsoft.com/en-us/library/vstudio/hbdfdyh7(v=vs.100).aspx
This should do the trick:
protected void Page_Load(object sender, EventArgs e)
{
Button b = new Button() { ID = "btnEdit", Text = "Edit Member" };
b.Click += (sd, ev) => {
// Do whatever you want to be done on click here.
Button me = (Button)sd; // This creates a self-reference to this button, so you can get info like button ID, caption... and use, like this:
me.Text = "Yay! You clicked me!";
};
form1.Controls.Add(b);
}
I've created an application in which I've created Dynamic Controls on Click Event of a Button. But the dynamically created Control Event will not Fire on Click of it.
Below is the Code I've written.
ImageButton closeImage = new ImageButton();
closeImage.ID = "ID"+ dr["ID"].ToString();
closeImage.AlternateText = "Delete";
closeImage.ImageUrl = "App_Themes/images/CloseButton.png";
closeImage.Attributes.Add("style", "float:right;cursor:pointer;margin: -19px 1px -10px;");
closeImage.EnableViewState = true;
closeImage.CommandName = "Delete";
closeImage.CommandArgument = dr["ID"].ToString();
closeImage.Attributes.Add("runat", "server");
closeImage.OnClientClick = "return confirm('Are you sure you want to remove this');";
closeImage.Click += new ImageClickEventHandler(this.closeImage_click);
protected void closeImage_click(object sender, ImageClickEventArgs e)
{
ImageButton ibDel = (ImageButton)sender;
}
The same code work if its placed on Page_Load(). Is there any other Solution to fire the event.
I would like to suggest that you read up on the following article on MSDN. It's about page lifecycle.The key part is to when controls are created. If the controls are created in the wrong stage, events will not be registered, and thus will not fire.
http://msdn.microsoft.com/en-us/library/ms178472%28v=vs.80%29.aspx
I have a textbox and a button on the ascx page.
After entering text i click on the button where it will post to the database and clear the textbox.
After positing, if i refresh the web page it is going to the button click method and posting the old text to the database. how can i clear the textbox value from the view state.
i have set the enableviewstate of the textbox to false. But still it is not working. Please let me know. Thanks
protected void Button_Click(object sender, EventArgs e)
{
var txt=textBox1.Text;
textBox1.Text="";//Set it to empty
// do other stuff
............
............
}
protected void btnClear_Click(object sender, EventArgs e)
{
ClearControls();
}
private void ClearControls()
{
foreach (Control c in Page.Controls)
{
foreach (Control ctrl in c.Controls)
{
if (ctrl is TextBox)
{
((TextBox)ctrl).Text = string.Empty;
}
}
}
}
After you save your data with the click button you can set the textbox.text = ""
EDIT: After your comment that textbox.text = "" is not working....
When you hit the refresh it sounds like it is resubmitting your work again. Try just reloading the page by browsing to your page again.
Also be sure to check that you aren't saving your data on every postback but just on the button click event.
Do you have any code in your page load event?
Long shot here, but this worked in my case:
TextBox.Attributes.Remove("value");
This was on a textbox with the text mode sent to 'Password'.
just add this at the end of the event after page i going o be refresh
Response.Redirect("Registration.aspx");
here my WebForm name is "Registration.aspx" instead of this put your WebForm name.