Preparing the code for the application and mapping the corresponding field for further execution. Writing the ASPX code for preparing the view presentation. It automatically came based on the page design. Working with a text box to define the field name, catch with the value, and perform the required tasks.
Displaying the main dashboard of grid view, where all the added data properly displayed on the screen including edit and delete link. Click on Edit, the same record comes into the field, where existing data displayed. Users can able to update it and save the same by clicking on the Update button. Click on Cancel it will again return back to the dashboard page.
This presentation or designing the page is comparatively easy to do for the developer rather than performing normal design. The page has multiple fields to handle and present. Custom paging In default paging, the entire records are fetched from the database, then the DataGrid selects records from entire set of data, according to page size, to display it in DataGrid.
In custom paging, developers have to write code for selective retrieve of the records from entire records to display in each page. Custom paging provides better performance than default paging.
To enable default paging, set the AllowPaging property of the GridView to true. Default value of PageSize property is Set PageSize property to display the number of records per page according to need of your application. The main event that is responsible for paging is PageIndexChanged event. When the user clicks on paging link on the GridView, page is postback to the server. Set the PageIndex property of DataGrid is as follows. This can be accomplished either by hand or through the Designer.
To do it by hand, simply add the appropriate declarative syntax to the ItemTemplate :. This will display the GridView's template editing interface.
In this interface's smart tag is a list of the templates in the GridView. Since we only have one TemplateField at this point, the only templates listed in the drop-down list are those templates for the FirstName TemplateField along with the EmptyDataTemplate and PagerTemplate. The EmptyDataTemplate template, if specified, is used to render the GridView's output if there are no results in the data bound to the GridView; the PagerTemplate , if specified, is used to render the paging interface for a GridView that supports paging.
We need to change this so that this property is bound to the value of the LastName data field instead. To accomplish this click on the Label control's smart tag and choose the Edit DataBindings option.
This will bring up the DataBindings dialog box. From here you can select the property to participate in databinding from the list on the left and choose the field to bind the data to from the drop-down list on the right. The DataBindings dialog box allows you to indicate whether to perform two-way databinding.
Either approach is fine for this tutorial. Two-way databinding becomes important when inserting and editing data. For simply displaying data, however, either approach will work equally well. We'll discuss two-way databinding in detail in future tutorials. Take a moment to view this page through a browser. After these changes the GridView's declarative markup should look like the following:. Displaying a data field value as text in a GridView is as simple as using a BoundField.
For certain scenarios, however, the data is best expressed using a particular Web control instead of just text. Such customization of the display of data is possible with TemplateFields. For example, rather than display the employee's hire date as text, we could show a calendar using the Calendar control with their hire date highlighted. Simply go to the GridView's smart tag and click the Edit Columns link, bringing up the Fields dialog box. To replace the text with a Calendar control, edit the template by removing the Label and adding a Calendar control.
Next, delete the Label control and drag a Calendar control from the Toolbox into the template editing interface. However, the employee's actual HiredDate value is not set anywhere in the Calendar control, causing each Calendar control to default to showing the current month and date. From the Calendar control's smart tag, choose Edit DataBindings.
The Calendar control's selected date need not necessarily be visible. For example, a Calendar may have August 1 st , as the selected date, but be showing the current month and year. The selected date and visible date are specified by the Calendar control's SelectedDate and VisibleDate properties. Then we discussed, how to export gridview data to excel sheet in Asp.
I am Bijay from Odisha, India. Please log in again. The login page will open in a new tab. After logging in you can close it and return to this page. At A Glance - Here's what we'll cover: show. Gridview in asp. Bind gridview using datareader in asp. How to add Eval for hyperlink in gridview in asp. Apply color in gridview rows based dynamically. Export gridview data to excel sheet in Asp. Export gridview to word in asp.
Show confirmation message in gridview for delete in Asp.
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