In my Sql Server table, I specified the modifyDate defaultValue to GETUTCDATE(). Now, in my FormView control and SqlDataSource control, do I have to do anything special?
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I am Chandan Pednekar an IT student completing my final year. I am developing a data driven website for my final year project. I have written a code behind file in c# which takes a value from a datagrid to retrieve values in textboxes for further updating.
I have coded the datagrid on another page. My problem is that, even when I click update(on editEmp.aspx) I straight away get redirected to the datagrid page(manageEmp.aspx I have redirected after successful update) but the database just doesn't gets updated. I am using sqlCommand Object with executeNonQuery method.
I don't even get errors. It just gets redirected and the database isn't even updated.
[Code]....
I have a gridview I create dynamically and one of the columns is a checkbox. I need to set an event handler on this control for checkedchanged. everything appears to work fine except for one thing....even though I can see my WebForm controls they are all null..(even thogh I know they are not) So I basically cant do anythign to the controls in the event handler. Here is teh code I use to create teh dynamic column in the gridview.
EtscUtilsUI.ALMSSECSRV.EALMSAppRoles ealmsapprole =
new EtscUtils.EtscUtilsUI.ALMSSECSRV.EALMSAppRoles();//Thsi
is the webform code behind partial class.
CheckBox chk =
new
CheckBox();
chk.ID = _columnName;
chk.DataBinding += new
EventHandler(chk_DataBinding);
//Attaches the data binding event.
chk.AutoPostBack = true;
chk.CheckedChanged += new
EventHandler(ealmsapprole.Dyn_CheckChanged);
container.Controls.Add(chk);
chk.Enabled = true;
This is the code for the event Handler
internal
void Dyn_CheckChanged(object sender,
EventArgs e)
{
string err =
"";
try
{
if (lblAppID.Text !=
"")
}
that label come back as null event though a previous event set its value successfully if I try to reference the gridview itself I get the error Object reference not set to an instance of an object.
I am trying to find an efficient way of displaying images (about 140x140px) in a webform. We cannot use paging, so we need to display all these images in the same webform.I noticed that facebook (and other sites) lets you display all your images in one page. For a profile qith about 1000 photos, facebook somehow downloads only enough so that the visitor can see images on the screen. Once you scroll, it seems to only download enough so that the visitor can again see something on screen. It works like a good text editor.... instead of displaying a huge file onscreen (like notepad does) and freezing, it only displays enough for the reader to see.
View 2 RepliesI need to get the selected Pagesize value from the gridview pager.
View 3 RepliesI am trying to create a recipe system that will pull material amounts from an already built inventory database upon request for testing purposes of the different recipe runs. What is throwing me for a loop is that each time a user will request a recipe comparison they will have a different number of recipe trial runs for comparison purposes. In order to do this I'm guessing you will need to generate a gridview-like control with a dynamic number of columns which would be specified on a web form page prior to arriving at the recipe formulation page which will contain the control for the recipe formulation. As a result the user will have different columns and rows on this formulation page, with the rows being a static number of 30 (30 being maximum amount of ingredients to include in each recipe). The columns will contain the recipes to be compared, i.e. ProductRun1, ProductRun2, ProductRun3, where the number of ProductRunX will be determined by user input. So the user when they come to this aspx page will be presented with a blank editable grid of X columns by 30 rows deep. The left-most column will contain the ingredient names in a drop down box for users to select to input into their recipe and the rest of the columns will be editable fields where the user can type in the amount of each material to be used. The setup will look roughly like this:
| ProductRun1 | ProductRun2 | ProductRun3 |
ProductRun4 | ... |
-------------------------------------------------------------------------------------------------------
Material1 | Material1_Amt | Material1_Amt | Material1_Amt | Material1_Amt | ...|
-------------------------------------------------------------------------------------------------------
Material2 | Material2_Amt | Material2_Amt | Material2_Amt | Material2_Amt | ...|
-------------------------------------------------------------------------------------------------------
Material3 | Material3_Amt | Material3_Amt | Material3_Amt | Material3_Amt | ...|
-------------------------------------------------------------------------------------------------------
(...)
-------------------------------------------------------------------------------------------------------
Material30 | Material30_Amt | Material30_Amt | Material30_Amt | Material30_Amt | ...|
-------------------------------------------------------------------------------------------------------
So my question is how would I go about tackling something like this and what controls would I use. All of the forum posts around the internet show the GridView control being tied to data in a database already and not having the ability to have a fully blank and editable table upon the page loading so that it can accept user input. Another wrench into the situation is that the column numbers can vary. What control would be used in this situation or would it be better to use just a repeater of textboxes to build this type of control? Another thing is once the control is built how can you pull the data from such a control with the intentions of entering it inside a sql server database?
Using VWD 2010 Express.
I tried to put a ListView onto a webform but got an error right after that:
Error Creating Control - ListView1
The 'CssClass' property cannot be set declaratively.
BTW, does ListView support horizontal/vertical scroll bar? As I might have about 50 records in maximum, so need to have horizontal and vertical scroll bars. But do not need paging.
I have a gridview that has the following colums Category, Weight , and an option to delete row. I user would like to be able to highlight two columns in excel Category, Weight and then past them from clipboard to gridview.
View 1 RepliesI wanna add a link and when it would be clicked then a pdf file will open in next tab of our browser.
View 1 Repliesi'm creating a webform with one gridview and three dropdownlist which are outside the gridview.In edit mode of the gridview i want to insert the values form the dropdownlist.what i select in dropdownlist it should be in gridview...i've three columns. so i've created three dropdownlist which are outside..i dont want the dropdown list in the gridview it should be separete .
View 2 RepliesI 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]....
I have this webform which displays some information from the database in a textbox named createdby as shown in the code
I have a datagrid which has the following columns which get displayed
[code]...
now I want to add two new columns to this datagrid named createdby createdtime which is the data in the above textbox.I have posted html and csharp code for existing.
[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 am trying to get a dropdownlist to fill a webform.My approach is to have the dropdownlist to be bound with data from the database. OnSelectedIndexChange for the dropdownlist, I would like to query the database to get the form data. Once the form is filled, changes can be made, then saved again...writing changes back to the database.These seems very simple, but I am stuck. My dropdownlist posts to the server to get the data, but I think this is submitting my form...which cannot have some empty form fields.
What I am looking for is a new way to approach this task ( I have gotten tunnel vision ).
I have 3 different work centers assigened to 3Text fileds on my webform DesignDate,CollectDate,TMSDate ).the process of job is likely to be DesignDate->CoolectDate->TMSDate.when i complete the Design process i will go for Coolect filed and put a date(which indicates particulr job due date)when i am moving from Current work center to nextwork center previous work center should be locked .is it possible to to do locking the textbox if already date exists in that field else allow to enter for text.My text fields are txtDD,txtCD,txtTMS.
View 3 RepliesIn my ASP.NET WebForms application, I have a WebForm that contains an UpdatePanel and multiple views used for a wizard like interface. At the end of the wizard, the user has an option of moving to another page by clicking a button. This new web page needs about 5 values from controls in the previous page.What is the simplest way to do this? (Edit: ONLY using an HTTP POST with data - this is a requirement as I would use database/session otherwise)
View 4 RepliesI'm implementing the MVP pattern within an existing asp.net webforms application and I was wondering if there is a clean way to map my form data to a data transfer object. I'm not particularly fond of implementing it this way:
MyObject obj = new MyObject()
{
bj.Name = txtName.Text,
obj.Description = txtDescription.Text,
obj.SomeOtherValue = txtOtherValue.Text
};
I'm beginner at C#, asp.net and I took a course about databases (fundamentals of Databases) I wouldn't ask such question because:
The thing I am required to do is an e-commerce project (small one) and I am stuck after connecting the database from SQL Server to Visual Studio using server explorer?
How in a simple manner can I send SQL queries and retrieve data and display it?
The problem is I have asked this while they know we didn't take web programming courses and I have to deliver the project next week (e-shopping cart + registration + signing in) !!!!
I am trying to make a simple form that is positioned within a contentHolder. The "CommitChange" Function should do a simple action - update a message to the data in the textBoxes in the form. However, though I change the text through input (writing in the textBox txtEmail [URL] for instance), the values stay the same as they were when the page loaded. Why Does the page not update the values in the textBoxes?
Here is the function:
protected void CommitChange(object sender, EventArgs e)
{
ContactMessage messageToUpdate = new ContactMessage(
idToEdit,txtName.Text,txtEmail.Text,txtPhone.Text,txtMsg.Text,DateTime.Now.ToShortDateString(),
int.Parse(DdlStatus.SelectedValue),int.Parse(DdlSubject.SelectedValue),txtAddress.Text,txtCity.Text,
txtMobile.Text,txtInnerText.Text);
BLLContactMessage.updateMessage(messageToUpdate);
lblOutput.Text = "Message Updated";
lblOutput.Visible = true;
}
I'm using a GridView control, using the Northwind database as a sandbox.
I have allowed editing of rows using AutoGenerateEditButton="true" and that all works fine. The book I'm using for reference the following code behind for error handling (C#):
[code]...
However, this seems to have no effect upon my label text, leading me to believe that the exception handling snippet won't work either.
I have a hybrid asp.net webform / mvc app, is there a way to use the asp.net controls and user controls inside mvc view?
View 1 RepliesI have a webform on which i display all the details of a particular record now i want to give my client print functionality so he can print those detail. Can this be done in asp.net and if yes then how?
View 4 RepliesI am creating a kind of feedback website which has a feedback form on it. Each question is answered choosing from a radio button group. the answers to each question are (very good, good, bad, failed). I need to be able to create a table on the webform that will display the number of answers to each questions. for example, if the question is "Rate the use of this software" i need to be able to put in table format say 20 people said "very good", 30 said "good" etc. at the moment i only have one table to display the questions and answers and a date that will be used to select the date's report. so all the information i need is coming from this table. all i need to do is how to say like "SELECT Count* Question where Review date = "user entered date" and answer = "very good" etc.
View 4 RepliesI have created an asp.net website that allows a valid user to add blogs to an sql database and then the blog can be viewed anonymously using the gridview tool.I have also created a a asp.net mobile webpage that allows anonymous users to view the blog but the problem i seem to be having is that when i view the mobile web page,the blog which has been created with using the gridview tool aswell its always the same size as the web browser and would like it to be of a fixed size so that it doesnt expand or shrink depending on how big the web browser is.
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