how can i add dynamic control (like textbox) on asp.net page at runtime and maintain the values of the control (viewstate of control ) on client browser refresh or roundtrip?
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how to maintain state of placeholder. i have a placeholder in which i add many image controls dynamically but when my page get refresh all controls from placeholder gets removed from it. the enableViewstate of placeholder is set to true.
View 3 RepliesI have an ASP.Net site that has master pages. The master page has some calls to functions to get information from a database. Then in one of the parts of the master page I have form that modifies that information. So when the user clicks a button the information in the database is updated but the display of that information doesn't update until the page is refreshed or another link is followed.
I would like to know how to force a page to refresh without loosing VIEWSTATE information so that the newly updated data in the database will appear correctly on the screen.
I tried this link but I wonder is it possible doing the same thing without page refresh?
View 1 Replies have looked around for an answer to this but not quite found what I need.
The main (home) page of my web app has a field on it indicating the last time an SSIS package was run. This is done under the page load event and the code reads a sql server table to pull of the date and time.
The problem is, if the date and time is updated and I then close teh web browser and re-open it and displays the main (home) page, the time displayed has not been updated. I have to either hit F5 or clear the temp internet files using the options under IE.
I found some code which refreshes the page automatically once every 5 seconds or at set intervals but this is not what I want to do. I just the page to be refreshed upon loading it.
I need to implement a "preview" functionality where people make changes to a form, click a button and a pop-up window displays the preview while the original form retains the user's changes in the various <textarea's. Right now, the preview is working, but when they come back to the form, their changes are gone, the page has refreshed. How do I prevent the page from refreshing? I need to go to the server to get the URL to the preview page.
View 6 RepliesDo Not refresh the page if i press the f5 button in asp.net.
View 1 RepliesI'm quite new to this so excuse me if this is a stupid question.
I created an extended dropdownlist based on the instruction on the asp.net site.
[URL]
My control gets a list of items from LINQ to SQL.
here's my problem:
When the page I used the control on posts back, the list get's re-initialized and looses it's selection.
How do I overcome this problem and keep the selection upon postback?
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If we set enable view state = false of a page then can we maintain the view state of that page ?
View 1 RepliesHow to maintain view state for the dynamically added html controls to a table using javascript(Below is the javascript which I am using to add HTML Controls Dynamically"). Because during the postbacks if I found any error while validating the data present in the dynamically added html controls, the controls are loosing their state and again I need to start adding rows and add data.
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I have ONE <asp:Button ID="btnAddUC" runat="server" ......./> and ONE <asp:Table ID="tblUC" runat="server"...> on my page. User clicks on btnAddUC, user control is added to the page [user can add 'n' user controls to the page]. here I have no problem, adding user controls to the page on user clicks.
My user control has ONE <asp:DropDownList ID="ddlItems" runat="server" ......./> and ONE <asp:CheckBoxList ID="chkItems" runat="server"..../>. I am exposing "ddlItems" by public method, "chkItems" is not exposed. "chkItems" is binded on SelectedIndexChanged event of "ddlItems".
Execution scenario:
User adds user control to the page, select item from the "ddlItems" ( Note: "ddlItems" is exposed by public property ) , "chkItems" is populated ( using ddlItems.SelectedItem.Value ) . User checks some checkboxes in "chkItems" and then decide to add one more user control. When the second user control is added to the page, checkboxes in the first usercontrol lose their state and apeears unchecked (NOTE: user checked some checkboxes and then added another user control).
I want to put checked beckboxes index in session ( Before another control is added, which event I should use, because at LOAD event there is nothing).
I was able to restict SelectedIndexChanged event to only that user control whcih generated it (checking _EVENTTARGET)
I'm trying to make a form that could have one or multiple textboxes. I have a textbox and a button to add additional textboxes.
I have no problem adding a second textbox inside a panel but I want to be able to keep adding more textboxes every time the link button is clicked and later reference those boxes to be saved. I would also like to maintain the value of the textboxes there. They are not saved to the database until all the necesary texboxes have been added.
I added the textbox using:
private void button1_Click(Object sender, System.EventArgs e)
{
TextBox textbox1 = new TextBox();
panel.controls.add(textbox1);
}
that works fine, but when i click the button again it doesn't add an additional textbox which is what i need.
In our application we need to handle browser close event. When a user directly closes the browser, we should give him an alert message and stop him by directly closing the window based on some conditions. This we have handled through body onunload event. The problem is we are getting the alert message but after showing the alert message the window gets closed.
Is there any way to stop closing the window on click of browser close event?
And also when the page is refreshed, the last performed action is getting fired again.
The function window.opener.location.reload(); is working fine with IE but not refreshing parent page in mozilla firefox browser. how to refresh parent page in cross browser/browser independent.
i have got this function:
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In my website, when user logged in, I maintain his/her username in a session but when user opens another tab and use the same website at that time session doesn't work.
For Example: User logged in with his/her details in my website and than when he open another tab of same browser and browse same website at that time it doesn't maintain session for that user.
I have "n" <tables></tables> on my page and each <table> has One(1) <asp:CheckBox.. Enable ='true"/> and "x" <asp:TextBox Enabled="false"..>. Each Table looks as follows
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When I click checkbox, it calls javascript function and enables textboxes (I have added onclick attribute to checkbox). Page also has <asp:Button ...Text="Submit"/> whcih actually grabs the data from the textboxes on the page and send it to the databse. Here is the Onclick event of the <asp"button../>
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If the exception is thrown , textBoxes are not reset but on postback textboxes appear as disabled (values are not reset)
So here is what happening on postback when exception is thrown
1) Values are not reset (that is what want)
2) Texboxes appear as Disabled (that is what I don't want on exception, REMEMBER I enable textBoxes using client side script)
How can I keep the textboxes enabled = "true"
I have a search page containing a collapsible panel with several controls including text, radio, drop list and check box. In the same page there is a gridview to display search result and links to other pages.Everytime I click on a link in the gridview, the viewstate is only maintained if I nevigate with the pagination of the gridview. However if I click on a link in the gridview and click the back button to the search, everything goes back to default, and the search results will be gone from the gridview. How may I enable the controls and the gridview to remain the same if I hit back button to it?
View 3 RepliesI have an aspx (parent) that call ShowModalDialog another aspx (child). and on the child, i close the windows using script
Page.ClientScript.RegisterStartupScript(Page.GetType(), "reloadpage", "var link;link=window.opener.location.href;window.opener.location.href=link;self.close();", true);
The child window close, go back to parent window, and reload the page and no confirmation box to refresh the page, working as expected. but all my previous entry to the screen is gone. how to retrieve it back or any work around?
Is there a way to refresh a control on a master page based on an action in a ContentPlaceHolder?
View 8 RepliesI have a Gridview connected to an Access database using a Datasource and a query SELECT * FROM [Staff]. In order to update the grid view I have to do it in the IDE and click Refresh Schema. I have tried:
StaffList.SelectCommand = "SELECT * FROM [Staff]"
StaffList.UpdateCommand = "SELECT * FROM [Staff]"
StaffList.DataBind()
Staff.DataBind()
At runtime I want it to update the Gridview.
StaffList.SelectCommand = "SELECT * FROM [Staff]"
I'd like to maintain a session state per browser tab.
Is this easy (or even possible) to do in ASP.NET?
Example: A user hits Ctrl-T in firefox 5 times and visits the site in each tab. I'd like each tab to have its own session state on the server
How can maintain the browser history while performing ASP.NET AJAX asynchronous postback operation.
View 1 RepliesNow here is the weird thing. First i am running it locally on the built in vs2008 web server.I load my control in fine, do a postback from a linkbutton, locally on my machine it all works fine, no issue.However when it goes onto my host, it falls over with the message:
Failed to load viewstate. The control tree into which viewstate is being loaded must match the control tree that was used to save viewstate during the previous request.Now i also load controls dynamically and use postbacks and things in the admin area of the site...and that works fine, however my front end just keeps failing? See the code behing below:
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I have a table on my page. I need to scroll down a little to get to that table. In that table i have som data that i edit and save to database. When the save is done i need to refresh the page( Response.Redirect(Request.RawUrl )) so it loads the new data to that table. When the refresh is done the page is on top again so that i need to scroll down again to see the table. This makes it very unusable for the user.
How can i refresh the page without it going back to top again? I tryed wrapping an updatepanel around the table but it didnt
In my .aspx page, I use a div including some repeaters and datalists without update panel.I bind all of them in page_load when Not IsPostBack condition is met.by default page is ok but if I push refresh button on browser regardless which browser or simply push F5 it shows header but not that div.
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