Grouping Data in the ListView Control

Charts and graphs always attract more users to the website. Displaying statistical data in the form of graphs gives more meaning to the data. There are tons of third party controls that can be used to create impressive charts but almost all of them come with a price. In this article I will introduce a very simple charting control, WebChart which allows the developer to create really cool looking graphs with only few lines of code. The best thing about this control is that it is totally free. The article will focus on creating the SmoothLineChart and the PieChart.

An approach to displaying a "please wait" message/animated gif following a button click using encapsulated client-side JavaScript.

It is often useful upon a form submission in a web application to display a "please wait" message, or animated .gif image, particularly if the submission process lasts a few seconds or more. I recently developed a survey submission application in which internal users upload excel spreadsheets through a web page. The application inserts the uploaded data from the spreadsheets into a database. The upload/insert process may only take a few seconds, but even a few seconds on the web is a noticeable wait. When testing, some users clicked the upload button repeatedly; it was useful to provide a visual clue that the upload was underway. For that matter, it was useful to hide the upload button altogether, preventing multiple clicks. The control presented here, a subclass of the Button control, demonstrates how client-side JavaScript code encapsulated in an ASP.NET server control can provide such functionality conveniently.

The ASP.NET GridView control is the successor to the ASP.NET DataGrid control which has many built in functionalities like paging, sorting, editing or deleting data. In this article I will explain how to select checkboxes inside the GridView control.

Many times you want to select multiple columns in a DataGrid and highlight the columns selected.

In the DataGrid MouseDown Event you will find out if you have selected a column header through the hit test. You then find the co-ordinate of the column and construct a rectangle out of that. If you are selecting multiple columns you can store the index of the columns and the rectangle in ArrayList.

Make sure you clear the ArrayList when you HitType is None.

In this article, you will learn how to work with the GridView control using the data from a Microsoft Access database. I will examine how to perform advanced tasks such as displaying, sorting, paging, updating and deleting data using one of the powerful controls included with Visual Studio 2005 in a step-by-step manner.

Hi,

I would want to know what is better: to keep a lot of data in cache at once or to keep a little data by paging?

 

For example:

I have 1000 articles and 200 pages.

 Hi, I have window form to let user fill data, I want to alert user if close web browser before saved web form data, could anyone provide any clue?

 

Thanks,

Martin

Hi,

I have a user control which has a modal popup. This modal popup has a grid and few controls like textboxes and comboboxes. I am trying to clear out all the controls when the close button is clicked. I am using javascript to close the modalpopup. but to clear the controls, $get('<%=txtbox1.clientID%>') method is returning null. can someone please help me?

Here is my code snippet.

function close_Click() {
    var mdlPopup1;
    mdlPopup1 = $find('modalPopup');
    mdlPopup1.add_hidden(clearInputFields);
    mdlPopup1.hide();
    
}

    function clearInputFields() {
        var name = $get('<%=txtName.clientID%>');

        name.value="";
       }

Hi all,

I have a SQL routine which builds me an entire XML file and returns it as a string. 
If I save the content of this file as sample.xml for instance, I am able to open it in IE or any other browser and the user can expand the nodes and see all the content he wishes.

I am trying to build a ASP.Net page which will display the content of a XML file in the same way (or similar) that the browsers do.

So far, I've been reading some posts and noticed I can use XmlDataSource control and its Data property to load the entire XML doc as a string. Now I am stuck how to display the contents. I found TreeView very confusing and not sure if DataGrid would be a alternative as well. I need to user to be able to open and expand the nodes.

Please someone point me to the right direction. What controls to use, etc... sample codes are the best ;-)

Thank you

 

Hello All,

I have a Wizard server control  to collect data and send it as an Email in the last step the problem i think that the page post back and clear the fields:

<asp:Wizard ID="WizardRG" runat="server" ActiveStepIndex="0" splaySideBar="False">
               
            <LayoutTemplate> 

             
                <div class="sidebar">
                  <asp:PlaceHolder ID="sideBarPlaceHolder" runat="server" />
                </div>
                
                
                <div class="step">
                  <asp:PlaceHolder ID="WizardStepPlaceHolder" runat="server" />
                </div>
               
                <div class="nav">
                  <asp:PlaceHolder ID="navigationPlaceHolder" runat="server" />
                </div>                
            
            </LayoutTemplate> 
            
            <SideBarTemplate>
                <asp:ListView ID="sideBarList" runat="server" >
                          <LayoutTemplate>
                            <div id="ItemPlaceHolder" runat="server"/>
                          </LayoutTemplate>

                          <ItemTemplate>
                           
                             <asp:Button ID="sideBarButton" CommandName="MovePrevious" Runat="server" Text="Button" UseSubmitBehavior="False"/>   
                             <%--<asp:LinkButton ID="sideBarButton" runat="server" Text="Button" />--%>
                           
                          </ItemTemplate>
                          <SelectedItemTemplate>
                                <%--<asp:LinkButton ID="sideBarButton" runat="server" Font-Bold="true" ForeColor="Yellow" Enabled="true" />--%>
                                <asp:Button ID="sideBarButton" CommandName="MovePrevious" Runat="server" Font-Bold="true" ForeColor="Yellow" Enabled="true" UseSubmitBehavior="False"/> 
                          </SelectedItemTemplate>
                          
                </asp:ListView>
            </SideBarTemplate>
            
            <StartNavigationTemplate>
                <p class="submitButton">
                    <asp:Button ID="StartNextButton" runat="server" CommandName="MoveNext" Text="Next" UseSubmitBehavior="False" />
                      
                </p>
            </StartNavigationTemplate>
            
            <StepNavigationTemplate>
                <p class="submitButton">
                    <asp:Button ID="StepPreviousButton" runat="server" CausesValidation="False" CommandName="MovePrevious" Text="Previous" UseSubmitBehavior="False"/>
                    <asp:Button ID="StepNextButton" runat="server" CommandName="MoveNext" Text="Next" UseSubmitBehavior="False"/>
                </p>
            </StepNavigationTemplate>
            
            <FinishNavigationTemplate>
                <div id="TableWrapper">
                        <p>
                            <asp:Label ID="LblemailTextBox" runat="server" Text="Please enter your email address if you would like a confirmation email:" AssociatedControlID="emailTextBox"></asp:Label>
                            <asp:TextBox ID="emailTextBox" CssClass="textEntry" Runat="server" AutoCompleteType="Email"></asp:TextBox>
                        </p>
                        <p class="submitButton">
                            <asp:Button ID="SendButton" runat="server" Text="Send" ValidationGroup="ContactUsUserValidationGroup" UseSubmitBehavior="False"/>
                            
                        </p>
                    </div>

                    <asp:Label ID="LBLMessage" runat="server" Text="Message Sent" CssClass="Attention" Visible="False" />
                    <p runat="server" id="MessageSentPara" visible="False">
                        Thank you for your message. We'll ge