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Resources |
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Finding
Correct Content Managemet System
This
list covers the full lifecycle of a content management system, from initially
creating the content, through to delivering it to end users...
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Workflow Managemet Systems
Workflow
management is a crucial component in organizing a variety of business processes
so that they benefit the business as a whole and increase profitability...
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Using the Power of Content Management Systems
With
page editors that resemble a word processor program, adding content with a CMS
interface is simple and fun. Most CMS software also allows you to change the
location of your content pages and links easily, while the back end processes
takes care of updating the links throughout your site...
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Content Management Systems (CMS): What They Are And Why We Love Them
In the
past, individuals who took interest in having and operating their own websites
were burdened with the task of learning HTML, DHTML, and other web-based
technologies such as JavaScript and CSS. The only alternative to this was,
unfortunately, to pocket the expenses and costs required to pay a web developer
to build and maintain it for them...
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Outsourcing
Post
your project for outsourcing and get bids from qualified programmers,
designers, interpreters, copywriters.
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Code Walkthroughs |
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Datagrid
Formatting the Data
We are
able to format the content of the datagrid cell by one of two simple methods,
dependant upon whether the column is a bound column or whether it is a template
column. In our example we shall format the column to have to digits after the
decimal point , followed by a...
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Datagrid
Highlight a Row With Click Through
It is
relatively easy to add alternating colours to the rows in your datagrid.
However, when we move the mouse over the rows we may want to highlight this
row, and possibly to add the option of a click through based on the row
selected...
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Add
a Delete Button to a Datagrid
To add
a delete button to a datagrid follows a similar process to adding an edit
button. In the datagrid header...
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Add
an Edit Button to a Datagrid
The
datagrid has a predefined editColumn for handling the editing of a datagrid.
Adding this simple column definition to a datagrid adds a powerful feature.
When a row is not in edit mode the column item shows the word...
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Making
a Datagrid Row Editable
Two of
the most popular methods of editing a datagrid in asp.net are to either select
the row and take the user off to a different presentation of the data, or to
change the formatting of the row presented in the database with appropriate
edit text boxes, checkboxes and...
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Adding
Tooltips to Datagrid Rows
Adding
tooltips to datagrid rows is easy, assuming that you have already created the
code for adding row highlighting. In this article I shall assume that you have
already read the article entitled Datagrid Highlight a Row With Click
Through...
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Binding
a Datagrid to an Access Database
This
list covers the full lifecycle of a content management system, from initially
creating the content, through to delivering it to end users...
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Adding
Data to a DropDownList
The aim
of this article is to answer the question 'How do I add items to a
DropDownList?' Initially as part of the declaration for the DropDownList we can
also define a number of items, much in the same way as in classic ASP...
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Getting
Current Date Time
In
classic ASP we had now() which would return the current date and time. For
asp.net this no longer exists. So what should we use...
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Test
if File Exists
Sometimes,
in order to reduce our chance of error, when working with the filesystem in
ASP.NET, we need to determine wether a file exists before performing an action
on it. The following short piece of code will enable us to test whether a file
exists...
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Using
Javascript with ASP.NET Form Elements
Adding
simple pieces of Javascript to an Asp.net page can be acheived by adding to the
attributes of the particular imagebutton or linkbutton. if its normal ASP.Net
Button then you can...
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Regular
Expressions
In the table below we list the characters used in .Net
regular expressions, together with their meaning, But first...
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Authentication
in Asp.net
Forms
authentication in ASP.Net is far more easier and safe than Asp 3. It is
possible to place a web.config file in any directory of a web site.Therefore,
we are able to make most of a web site public, whilst providing authentication
on, say, one directory...
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22.1 How to close the browser window on button control click?
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Method 1. This will cause a postback on button click in response to which we
will send some script to close the window.
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Private Sub Button1_Click(ByVal
sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
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Response.Write("<script>window.close();</script>")
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private void Button1_Click(object
sender, System.EventArgs e)
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Response.Write("<script>window.close();</script>");
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Method 2. This is preferrable since there is no postback involved.
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Use the Attribute collections i.e
use Attributes of button control to add client side JavaScript code
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Button1.Attributes.Add("OnClick", "window.close();")
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Button1.Attributes.Add("OnClick", "window.close();");
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22.2 How to create server controls at runtime?
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Here is an example of creating a HyperLink control in code.
VB.NET
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Dim hpl As New HyperLink()
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hpl.NavigateUrl="http://www.syncfusion.com"'
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Page.Controls(1).Controls.Add(hpl)
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HyperLink hpl = new HyperLink();
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hpl.NavigateUrl="http://www.syncfusion.com";
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Page.Controls[1].Controls.Add(hpl);
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22.3 How to change the text color of a linkbutton control?
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<asp:LinkButton forecolor
="green" id="LinkButton1" runat="server">LinkButton</asp:LinkButton>
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22.4 How to dynamically add validator controls?
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Dim txtBox As TextBox = New TextBox
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txtBox.ControlStyle.CssClass =
"textbox"
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txtBox.ID = "txtbox" + i.ToString()
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Dim rqdVal As RequiredFieldValidator
= New RequiredFieldValidator
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rqdVal.ID = "rqdVal" + i.ToString()
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rqdVal.ControlToValidate = "txtbox"
+ i.ToString()
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rqdVal.ErrorMessage = "Please enter
a value"
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rqdVal.Display =
ValidatorDisplay.Dynamic
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Dim rngVal As RangeValidator = New
RangeValidator
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rngVal.ID = "rngVal" + i.ToString()
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rngVal.MinimumValue = "1"
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rngVal.MaximumValue = "100"
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rngVal.ControlToValidate = "txtbox"
+ i.ToString()
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rngVal.Type =
ValidationDataType.Double
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rngVal.ErrorMessage = " Value should
be between 1 and 100"
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'Add Controls on the page
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Page.Controls(1).Controls.Add(txtBox)
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Page.Controls(1).Controls.Add(rqdVal)
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Page.Controls(1).Controls.Add(rngVal)
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TextBox txtBox = new TextBox();
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txtBox.ControlStyle.CssClass =
"textbox";
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txtBox.ID = "txtbox" + i.ToString();
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RequiredFieldValidator rqdVal = new
RequiredFieldValidator();
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rqdVal.ID = "rqdVal" + i.ToString();
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rqdVal.ControlToValidate = "txtbox"
+ i.ToString();
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rqdVal.ErrorMessage = "Please enter
a value";
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rqdVal.Display
=ValidatorDisplay.Dynamic;
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RangeValidator rngVal = new
RangeValidator();
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rngVal.ID = "rngVal" + i.ToString();
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rngVal.MinimumValue = "1";
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rngVal.MaximumValue = "100";
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rngVal.ControlToValidate = "txtbox"
+ i.ToString();
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rngVal.Type =
ValidationDataType.Double;
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rngVal.ErrorMessage = " Value should
be between 1 and 100";
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//Add Controls on the page
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Page.Controls[1].Controls.Add
(txtBox);
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Page.Controls[1].Controls.Add
(rqdVal);
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Page.Controls[1].Controls.Add
(rngVal);
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22.5 How to change the image button size during runtime?
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Dim x As New Unit("80px")
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Dim y As New Unit("20px")
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Dim imagestate as string= "stand"
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If imagestate = "stand" then
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Unit x = new Unit ("80px");
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Unit y = new Unit("20px");
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string imagestate="stand";
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if( imagestate != "stand")
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22.6 How can I to divide the .aspx page to different parts with different
functionality in a neat and organized manner. Is there any control that can do
that?
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You can use Panel controls, which render as HTML div elements. You can then show
or hide the panels by enabling/disabling them. In addition, you can specify
different formatting options for different Panels/divs using manual formatting
or CSS styles.
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22.7 How to maintain Scroll Position in any Page Element?
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Check out Jim Ross's article
Maintain Scroll Position in any Page Element
The article describes, when using a scrollable Datagrid--one inside an
overflow-auto DIV control--how to maintain the user's scroll position inside
the DIV across postbacks. It does this using IE behaviors, HTC files.
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22.8 DataBinder.Eval imposes performance penalty on code as it uses late bound
reflection. How can I replace this calls with explicit calls?
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Change the Databinding Expression
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<%#DataBinder.Eval
(Container.DataItem , "StartDate" , "{0:c}")%>
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<%#String.Format("{0:d}" ,
(CType(Container.DataItem, DataRowView))("StartDate"))%>
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<%#String.Format("{0:d}" ,
((DataRowView)Container.DataItem)["StartDate"])%>
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22.9 What is the difference between User Controls and Custom Controls?
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User Controls are text files with the extension '.ascx' which enables you to
make GUI re-usable controls. Its a text file, which contains a mixture of HTML
and scripting. User Controls can be edited in an editor.
On the other hand Custom Controls reside in compiled ( Dll ) assemblies. They
are non-GUI but can emit HTML GUI at runtime. Example of Custom Controls would
be the sever controls which come bundled with the .NET SDK like DataGrid,
Repeater, DataList etc. Custom Controls are always compiled into Dll's and
hence require good programming knowledge. The purpose of Custom Controls is
also to create re-usable units of code.
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22.10 How to apply Style to a Web Server control programmatically?
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<asp:TextBox id="TextBox1"
style="Z-INDEX: 101; LEFT: 40px; POSITION: absolute; TOP: 64px"
runat="server">Syncfusion</asp:TextBox>
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<asp:Button id="Button1"
style="Z-INDEX: 102; LEFT: 48px; POSITION: absolute; TOP: 120px" runat="server"
Text="Button"></asp:Button>
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<asp:CheckBox id="CheckBox1"
style="Z-INDEX: 103; LEFT: 40px; POSITION: absolute; TOP: 200px" runat="server"
Text="Syncfusion"></asp:CheckBox>
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Protected Function
createStyleForControl(ByVal _forecolor As Color, ByVal _backcolor As Color,
ByVal _fontbold As Boolean) As Style
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Dim s
As Style = New Style
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Dim textboxStyle As Style =
createStyleForControl(Color.Pink, Color.Yellow, False)
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Dim buttonStyle As Style =
createStyleForControl(Color.Blue, Color.Teal, True)
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Dim checkboxStyle As Style =
createStyleForControl(Color.AliceBlue, Color.PowderBlue, False)
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TextBox1.ApplyStyle(textboxStyle)
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Button1.ApplyStyle(buttonStyle)
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CheckBox1.ApplyStyle(checkboxStyle)
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protected Style
createStyleForControl(Color _forecolor ,Color _backcolor ,bool _fontbold )
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s.ForeColor
= _forecolor;
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Style
textboxStyle=createStyleForControl (Color.Pink , Color.Yellow ,false );
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Style
buttonStyle=createStyleForControl (Color.Blue , Color.Teal ,true );
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Style checkboxStyle
=createStyleForControl (Color.AliceBlue , Color.PowderBlue ,false );
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TextBox1.ApplyStyle(textboxStyle );
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Button1.ApplyStyle (buttonStyle );
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CheckBox1.ApplyStyle (checkboxStyle
);
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