DevExpress provides a comprehensive suite of controls for ASP.NET Web Forms, and one of the key features it offers is the ability to use inline editing for data grids. Inline editing allows users to edit records directly within the grid without needing to navigate to a separate form. This feature enhances user experience and increases productivity.
What is Inline Editing?
Inline editing enables users to click on a cell within the grid to edit its value. This method is efficient as it minimizes page navigation and allows for quick data entry. DevExpress's ASPxGridView control supports inline editing, making it a popular choice for developers looking to create responsive and interactive web applications.
Setting Up Inline Editing in ASPxGridView
To implement inline editing in an ASPxGridView, you need to configure several properties. Below is a basic example of how to set up inline editing.
Example Code
<dx:ASPxGridView ID="grid" runat="server" OnRowUpdating="grid_RowUpdating" OnRowInserting="grid_RowInserting">
<Columns>
<dx:GridViewDataTextColumn FieldName="ID" ReadOnly="True" />
<dx:GridViewDataTextColumn FieldName="Name" Caption="Name" />
<dx:GridViewDataTextColumn FieldName="Email" Caption="Email" />
<dx:GridViewDataTextColumn FieldName="Age" Caption="Age" />
</Columns>
<SettingsBehavior AllowFocusedRow="true" AllowSort="true" />
<SettingsEditing Mode="Inline" />
</dx:ASPxGridView>
Explanation of the Code
<dx:ASPxGridView>: This is the main control for displaying the grid.<Columns>: Here, you define the columns that will appear in the grid. Each column is defined by its data field.SettingsEditing Mode="Inline": This property enables inline editing mode, allowing users to edit cells directly in the grid.
Handling Data Updates
To handle the data updates, you will need to write server-side code to manage the RowUpdating and RowInserting events. Here's how you can handle these events in your code-behind:
protected void grid_RowUpdating(object sender, DevExpress.Web.Data.ASPxDataUpdatingEventArgs e)
{
// Get the current values
int id = (int)e.Keys[0];
string name = e.NewValues["Name"].ToString();
string email = e.NewValues["Email"].ToString();
int age = Convert.ToInt32(e.NewValues["Age"]);
// Update the data source (e.g., database)
// ...
// Cancel the event
e.Cancel = true;
// Refresh the grid
grid.DataBind();
}
protected void grid_RowInserting(object sender, DevExpress.Web.Data.ASPxDataInsertingEventArgs e)
{
string name = e.NewValues["Name"].ToString();
string email = e.NewValues["Email"].ToString();
int age = Convert.ToInt32(e.NewValues["Age"]);
// Insert the data into the data source (e.g., database)
// ...
// Cancel the event
e.Cancel = true;
// Refresh the grid
grid.DataBind();
}
Conclusion
Using inline editing in DevExpress's ASPxGridView is a straightforward process that greatly enhances user interaction with your web application. By allowing users to edit data directly within the grid, you streamline workflows and improve efficiency.
Whether you're building data-driven applications for business or personal use, the inline editing feature can significantly enhance the usability of your data grids. Be sure to explore other features of DevExpress to take full advantage of its robust capabilities.
