Web Forms :: Unable To Control Postback?
Apr 23, 2010
I have a tab which loads a usercontrol dynamically and this usercontrol has 2 other usercontrols. One on the left loading treeviewA and one on the right treeviewB.I am using update panel for aspx and the ascx too. But, I am not able to control to page state and moreover when I click on one control, it get its child item, by the time I click on other control, it would refresh other control too and will lose its value.I am using below code in aspx and I have embeded update panels in usercontrols too
using http://msmvps.com/blogs/luisabreu/archive/2006/11/16/adding-removing-updatepanels-dynamicaly-from-a-page.aspx
as reference
<asp:ScriptManager
ID="ScriptManager1"
runat="server"/>
[Code]....
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Feb 23, 2010
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Mar 17, 2010
i built a user control for login process, i'm using it in some of my pages, but something
wierd happens, in some pages it works fine, and in some page he just doing Postback,
and put this in the url:
?ctl00%24ContentPlaceHolder1%24LoginBox1%24TxtUserName=&ctl00%24ContentPlaceHolder1%24LoginBox1%24uiTxtPassword=&ctl00%24ContentPlaceHolder1%24LoginBox1%24SignInCmd=Sign+In
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Mar 29, 2010
I am trying to add UserControl dynamically to the page. UserControl is added only once (when the page loads) but on postback it doesn't add again (Only one control is alwasys there).I want to add user control Whenever user clicks "btnAddUCWingControl" so when the page loads for first time, there will be only one control, on postback there must be TWO controls and so on
Here is my .aspx (this is content page)
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My .aspx.cs file is
[Code]....
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Sep 13, 2010
I was trying to disable button after it is clicked once. But I am not sure where I was going wrong. On click of Ok, I am trying to navigate back from ascx to aspx page.
[Code]....
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Aug 6, 2010
I've got an issue with the postback property. I have a chart (Code below) which has two series pulled from a datasource.
Both series display fine but I've enabled the bars in the chart to respond to the click event and when items from the first series is selected, everything works fine. However, I try to pull the x value for the second series, which is supposed to be a date, but all I get is an interger.
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C# Code...
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Mar 25, 2010
I have a page (page1) with 4 controls that serve as the parameters for a report. The submit button does a cross page postback to another page (page2) that contains a ReportViewer control.Unfortunately, I cannot read the values from page1 once I get to page2. Here is the source to page1:
[Code]....
Here is the handling code on page2 (rvProjectStatus being the ReportViewer control):
[Code]....
In other situations I have passed such values in the query string and then assigned them to the parameter collection, no problem.Also, please note, I have tried using the @PreviousPageType directive to get at the types on page1, but have met with no success there either.
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Mar 2, 2011
Asp.net.3.5 ajax + jquery
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[Code]....
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Jan 28, 2011
iam using the Jquery Uframe with asp.net project.Iam getting a postback problem here.
In side the uframe ,button control getting postback the page even the client side method call also.
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And I got very limited reference about the uframe(codeflex,codeProject).
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Jun 18, 2010
I'm working on an asp.net app and I have some controls that are created dynamically on the OnInit event. One of that controls is an asp button that has been working fine until now. When I add a ScriptManager to my page, that same button is unable to postback. It's only working if a take the ScriptManager out. Has anything like this ever appened to somebody else? Am I invalidating the page somehow? Edit: This is my script manager tag:
<asp:ScriptManager ID="ScriptManager1" runat="server"
EnablePageMethods="true" EnableScriptGlobalization="true"
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</asp:ScriptManager>
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Jul 4, 2010
On postback, how can I check which control cause postback in Page_Init event.
protected void Page_Init(object sender, EventArgs e)
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}
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Sep 17, 2010
i am displaying some crystal reports on some pages but when the user wants to print it, the data disappears and all you see is the labels.
[Code]....
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Sep 15, 2010
public abstract class AStateManagement : WebControl, IVFSStateManagement
{
protected PersistScope _StateManagement = PersistScope.ViewState;
protected System.Web.UI.StateBag _ViewState = null;
public virtual PersistScope StateManagement
[Code]....
I have create a custom textbox which will validated the data depending upon the business logic defined at run time. But currently i am not able to catch the update the value inside a textbox (entered by the user). I have implemented LoadPostData but i am unable to get the updated value.
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Nov 1, 2010
I had a little project is create dynamic control. My project had get detail of content and replace in sign string, Add control in sign. After click button I will find in control, I had added on page load in panel. I can't get value in child control panel, Don't have control in panel. My source is
protected void Page_Load(object sender, EventArgs e)
{
string config_design = GetConfigueKey(configDesign);
Genform(config_design, GetContent(config_design));
if (IsPostBack)
{
btn_submit_click(sender, e);
}
else
{
string config_design = GetConfigueKey(configDesign);
Genform(config_design, GetContent(config_design));
}
}
protected String GetContent(string designname)
{
string rev = "";
mClsDB = new clsConn();
strSql = "SELECT STR_DESIGN_CONTENT,STR_DESIGN_NAME,INT_FORM_ID FROM TBL_DESIGN WHERE INT_DESIGN_ID = " + designname + " ";
DataTable dt = mClsDB.GetDataTable(strSql);
if (dt != null)
{
if (dt.Rows.Count > 0)
{
rev = dt.Rows[0]["STR_DESIGN_CONTENT"].ToString();
}
}
return rev;
}
protected void Genform(string designname, string content)
{
string rev = content;
mClsDB = new clsConn();
//strSQL = " SELECT INT_FIELD_ID,STR_FIELD_NAME,STR_FIELD_SIZE,STR_FIELD_CSS,STR_FIELD_DEFAULTVALUE,BIT_FIELD_VISIBLE,INT_FIELD_VALIDATE_TYPE,STR_FIELD_MINMAX,STR_FIELD_TYPE_NAME ";..................
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Feb 10, 2010
if (Page.IsPostBack)
{
//here I need to know which control causes the postback
}
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Dec 23, 2010
Am using a ascx page i want to add a textbox control but its giving me the error like
"
Control 'TopFront1_TextBox1' of type 'TextBox' must be placed inside a form tag with runat=server.
"
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Dec 21, 2010
I have a user control the exposes several public properties. I added a reference to the usercontrol to my page and I added an instance of the control:
[Code]....
One of the properties exposed by my control is called "Text". I have used this control in many different projects and I am ordinarily able to do this:
string x = mtPrintPlatform.Text;
However in this project I am unable to use the control as a MetaTextBox...I only see the properties of UserControl, from which MetaTextBox is derived. So my Text property is not accessable.
I am, however, able to cast the control and access the property like this:
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This problem occurs with all user controls in my project, I am using just one control as an example.
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Apr 16, 2010
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private void MakeWriteUpsVisible()
{
panelWriteUp.Visible = true;
for (int counter = 0; counter < panelWriteUp.Controls.Count; counter++)[code].....
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Feb 8, 2010
I have a web application that shows a page containing between 6 and 20 AJAX UpdatePanels, contained with Custom Web (.ascx) Controls.
You can see an example of such a page here:
[URL]
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This behaviour is having a dramatic impact on performance. The page loads quickly, and a "normal" RB click provides an AJAX update correctly within 1 second. The problematic first RB click, however, takes up to SIX seconds to process, which is unacceptable from a user experience standpoint.
Developed in VS.NET 2008, ASP.NET 3.5. Also I converted the "Web Site" solution to a "Web Application" (pre-compiled) and got the same performance (still too slow). Release builds run only marginally faster than debug builds.
Why would a single RB selection change cause all RB's that have a "selection" set on them to also fire? (The "selection" is determined through database settings every time the control is populated, which is called from within the parent page control's Page_Load function. This selection is determined also at first page load, since all the controls get populated then, so why would the clicking of an RB cause them all to fire an event, and only once? That's what I don't get...)
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I have used calender web user control inside my project where i took textbox,button and calender...but after dragging onto my aspx page..i am unable to access this textbox,calender and button on aspx page..
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Jan 11, 2010
Is there any solution for this issue.
http://forums.asp.net/t/1006536.aspx
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Jun 27, 2010
Can i know that how can i get a dynamic dropdownlist controls's value after postback?
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Nov 6, 2010
I have a control in a web page. When the page initially loads the postback is false, and any subsequent clicks on the control and it's still false.
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Apr 26, 2010
I am using asp.net 3.5 with C# to build web application. I am using master pages. I had a label in masterpage. I want to set some text in that label from content page. I have written following code for that
Label lbl = (Label)Master.FindControl("lblUserName");
lbl.Text = "Guest";
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Mar 4, 2010
i can't able to set default path to file control
<input type="file" id="file" />
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