Changing background color of individual datagrid cells

Question

I have a Visual Studio Web application that I want to change individual datagrid cell colors depending on the data they hold.
Is there a way to change the background colors of individual cells in a datagrid using C#?

ray · Answer

To change the background of a cell in a WEB datagrid, it is best to do this at the ItemDataBound event. At that point just add an attribute to the cell Somthing like this will do: private void dg_ItemDataBound(object sender, DataGridItemEventArgs e) { if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem) { DataRowView row = (DataRowView)e.Item.DataItem; if(row["FieldName"].ToString == "Your Value") { e.Item.Cells[iColNum].Attributes.Add("style","your style"); } } }

ray · Answer

The key is to override the Paint method on the DataGridTextBoxColumn. First you need to create your own class that inherits from DataGridTextBoxColumn. override the paint method and then you are set. See: http://www.codeproject.com/csharp/custom_datagridcolumnstyl.asp For more help also look at: http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnwinforms/html/wnf_CustDataGrid.asp for a VB example Hope that this helps

Adam Sta · Answer

Thanks for the link. I checked it out. Its using C# Windows forms and not a C# web application... I couldnt seem to get the code working in a Web App... Is it possible to use similar code to this in a web app or would it be totally different?

Grzegorz · Answer

Hi, try http://www.dotnet247.com/247reference/articles/1/8355.aspx Hope it helps. Regards and good luck, Grek.

Changing background color of individual datagrid cells

Answers (4)