I'm new in ASP I was watching a video which explains how to add a webform and declar a variable
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but it says <%var1%> it's not declard when I run it without debugging .
I am using a server control on a single web.forms page. I have to use this control on a web.forms page since its a server control, although this is actually a MVC project. So I created a web.forms folder and put my new page in it. I then copy the example code from the signature control. I get the following error:
The base class includes the field 'ctrlSign', but its type (WebSignatureCapture.SignatureControl) is not compatible with the type of control (ASP.signaturecapture_signaturecontrol_ctlsignature_ascx).
I know the code works because if I removed the ID attribute from the server control, it no longer gives me this error and my control renders. But I need the attribute for the ID so I can perform is post event
I am using this signature control. Here's the web.forms code...
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Index.aspx.cs" Inherits="KahunaCentralTIDRevamp.SignatureCapture.Index" %> [code]....
in webform 1, i have search button when i click its open webform2 and there the gridview.
I want when i click the link in gridview in webform 2 then it close webform 2 and change the datasource parameter in webform 1 without open the new window (still same window)
What is right way to send visitors from one webform to other. What are their limitations and their plus points.
View 2 RepliesI created a new page in an existing project. The existing pages are still good, but the new page is having problems at runtime. The problem is that controls are not recognized and throw a "object reference not found" error. I even tried Page.FindControl and that didn't work either. This is only happening with this page. The controls are recognized at design time, and are not recognized only at runtime.
The controls were copied from a regular Web form into a content form with a master page. They worked fine when in the regular web form. Could that be the issue?
I tried creating a new page and moving the controls over, but that didn't fix the problem. I also tried deleting the designer file and recreating it (using convert to web application) but that didn't resolve it either. I'm out of ideas here. Here is the page directive and the first control that is not recognized.
<%@ Page Language="C#" MasterPageFile="~/Site.Master" AutoEventWireup="true" CodeBehind="default_grid.aspx.cs" Inherits="TestItemDevelopment.default_grid" %>
<asp:Content ID="Content4" ContentPlaceHolderID="mainContentHolder" runat="server">
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Attribute not recognized 'setProcedure' ?
I got a variable of type System.Drawing.Image and need to convert it to a variable of type byte so I can store the image in the database. Can someone show me how to do that in VB.NET code.
View 2 RepliesI downloaded iTracker to get started doing some web development with ASP.NET. I don't understand why in the code behind file, the standard web controls are not recognized.
For example:
This is the ASPX File ...............
<%@ Page Language="vb" AutoEventWireup="false" MasterPageFile="~/ITracker.Master" CodeBehind="Details.aspx.vb" Inherits="dfs.ITracker.Details"
title="Untitled Page" %>
<asp:Content ID="Content2" ContentPlaceHolderID="cphTitle" runat="server">
<asp:label ID="lblPageHeader" runat="server" CssClass="PageHeader"></asp:label>...
This worked before but NOW it is not working. Really weired.
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The second line gives me the error. What's wrong with this
while inserting joindt,exitdt to employee table it shows error "String was not recognized as a valid DateTime." help me withthis error.my code:
DateTime creationdt = Convert.ToDateTime(TextBox5.Text + "/" + DropDownList1.SelectedValue + "/" + TextBox6.Text);
DateTime join_dt = Convert.ToDateTime(TextBox7.Text + "/" + DropDownList16.SelectedValue + "/" + TextBox8.Text);
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i am writing a datetime string to my sql db and i get the above error. code is as follows:
String WCRDate = txt_Date.Text;
String WCRTime = DDL_Hour.SelectedValue + ":" + DDL_Min;
DateTime WCRDateTime = new DateTime();
WCRDateTime = DateTime.ParseExact( WCRDate + " " + WCRTime , "dd/MM/yyyy hh:mm" , new CultureInfo("en-GB",true));
the txt_Date.text field gets the date from an asp calendar in the format 21/07/2010
however when debugging the WCRDateTime shows {01/01/0001 00:00:00 }
I am using calender extender for 2 textboxes(txtstartdate,txtenddate) and have set the format as "dd/MM/yyyy". At the txtenddate textchanged event i am calculating no of days to diplay in txtduration.text..I am getting format exception like this:
String not recognised as valid datetime..
Where am i going wrong.. My code is as below
private int duration(string startdate, string enddate)
{
DateTime dt1= DateTime.Parse(startdate);
DateTime dt2= DateTime.Parse(enddate);
//dt1 = Convert.ToDateTime(txtstartdate.Text);
//dt2 = Convert.ToDateTime(txtenddate.Text);
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I need to access controls of aspx page and usercontrol page through the external .js file. I created a global varaible in the aspx page
<script language="javascript" type="text/javascript">
var loadPanelID = "<%=ajaxLoadingPanel.ClientID%>";
</script>
Now I pass this value in the onclick event of button click (Let the funtion name be Fun(loadPanelID) ) . The controls is recognised in the .js file. Everything is fine till now. Now i need to call the same javascript method Fun() from the button click of usercontrol.
<script language="javascript" type="text/javascript">
var loadPanelID = "<%=ajaxLoadingPanel1.ClientID%>";
</script>
I have ajaxLoadingPanel1 in the usercontrol and I have defined global variable as in the first one in ascx and passed that value to Fun() method. But this time it gives error called "loadpanelID" is undefined.
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.
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I recently added a repeater control to a page
<asp:Repeater runat="server" Visible="true" ID="repeaterApp" > </asp:Repeater>
When I go to the page_load event in the codebehind, I can't seem to find this control at all. No intellisense whatesover. I've tried renaming, closing the solution, even changing the codebehind directive at the top of my aspx page to "codefile".
I am developing a web applications. The application was intially done in Visual studio 2003 using csharp. then it was upgraded to visual stduio 2008. Now there is one webpage with 3 files with following extentions (.aspx,.aspx.cs,.aspx.resx) I right clicked on file to convert it web application but it is just the same. The main problems I have with this file as follows;
When I put a text control on form (.aspx) it is compiling with out any error but when I want to use the same control on aspx.cs it is not being recognised. How can I slove this problem?
Second when I do changes on aspx.cs file there not being recognised although there is no error when I compile.
DateTime dt = Convert.ToDateTime(txtldate.Text.Trim());
DateTime dt1= Convert.ToDateTime(dt.ToShortDateString());
// txtlday.Text = dt1.DayOfWeek.ToString();
DateTime startingDate = DateTime.Parse(DDMonth.SelectedValue.ToString());
LbCalendarCurrentMonth.Text = startingDate.ToString("MMMM");
returns the error: System.FormatException: String was not recognized as a valid DateTime.
I am trying to use Operator class to ConcatenateObject in my Class file of ClassLibrary. I have imported namespace of Microsoft.Visualbasic but still Operator class is not recognized. [URL] If I am trying to use add reference of Microsoft.VisualBasic.dll system say that it is already automatically adeed.
View 6 RepliesI am extracting some value from my database table. there is a files haiving datatype dattime. in some recordsthis column has null value, by default.
see my code
lblDonorname.Text = dt.Rows[0]["SubContarctor_Name"].ToString();
string dtrequest = dt.Rows[0]["Request_Date"].ToString();
if (dtrequest.ToString()!="")
{
DateTime dtrequest1 = Convert.ToDateTime(dt.Rows[0]["Request_Date"].ToString());
lblRequestDate.Text = dtrequest1.ToString("dd/MM/yyyy");
}
lblSubConAmount.Text = dt.Rows[0]["Sub_ContractAmt"].ToString();
bolded part for extracting date in a label( lblRequestDate). is it ok by point of view security (I never get an error although the data may be complex)
I am developing web application using csharp on visual studio 2008. I am loading the data from Microsoft Excel to datagrid. But when I want to check the date in a given column and getting the error
String was not recognized as a valid DateTime . How can I solve this problem? The code I am using is below.
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I just created a small site with form authentication with route handling. Without forms authentication, the pages route just fine. With forms, it returns back to the login page as it is not one of my allowed locations specified in my web.config file.
I know I probably need to write a custom route handler. Does anyone have an example I can follow for this?
I have a problem in my application. I have deployed application on server. i have a string in dd/mm/yyyy format. to which when i am trying to parse in datetime it is working fine on my server when i am working locally on server. but when i am trying it remotely(client) it is giving exception saying string is not recognized as valid datetime format. This is how i am trying the code.
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Nested GridView Control returns "Object variable or With block variable not set" when outer GridView returns rows.
The Nested GridView Control works as long as the outer GridView returns rows, the following code works: [Code]....
Object variable or With block variable not set.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.NullReferenceException: Object variable or With block variable not set.
Source Error:
Line 118: If e.Row.RowType = DataControlRowType.DataRow Then
Line 119: Dim myStatus_ID As SqlDataSource = CType(e.Row.FindControl("sqlDeviceStatusAssign"), SqlDataSource)
Line 120: If Not e.Row.DataItem("Status_ID") Is Nothing Then
Line 121: myStatus_ID.SelectParameters(0).DefaultValue = e.Row.DataItem("Status_ID")
Line 122: End If
I have tried checking for IsDbNull and checking to see if a label exists in a given row. This code *If Not e.Row.DataItem("Status_ID") Is Nothing Then* appears to do nothing.Same with the following:
*Dim localLblItemReference As Label = CType(e.Row.FindControl("lblItemReference"), Label)
*If Not localLblItemReference Is Nothing Then
******************************************************************************************
To further clarify my question above, I am looking for a method to detect e.Row.DataItem("Status_ID") is nothing/null due to the outer GridView returning 0 results in a query.I have a (Outer) GridView Control with another GridView Control inside of a template field with it's associated SqlDataSource control.
In the "Protected Sub GridViewReport_RowCreated", I provide the Select Parameter for the associated SqlDataSource with the DataItem row value.When the (Outer) GridView Control does not return any rows, the "e.Row.DataItem("Status_ID")" throws a:
Exception Details: System.NullReferenceException: Object variable or With block variable not set.
I am using three listviews on a page ... the first is always populated ... the other two are sometimes populated I want to total amounts and counts from all three ... so I set up steps in the DataBound events works great when all three listviews are populated the error "Object Variable or With block variable not set." occurs when LV2 or LV3 is not populated I've tried testing DataItem ... Is Nothing but get the failure on the If test instead
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