How do I set css classes for a gridview row and header by code?

Question

I was trying the following but it says that the header row is null?>

   private void CreateGridControl()
   {
        lastCreatedOpportunitiesGrid = new GridView();

        BoundField bOportunityCode = new BoundField();
        bOportunityCode.DataField = "OpportunityCode";
        bOportunityCode.HeaderText = "OpportunityCode";
        lastCreatedOpportunitiesGrid.Columns.Add(bOportunityCode);

        BoundField bOpportunityName = new BoundField();
        bOpportunityName.DataField = "OpportunityName";
        bOpportunityName.HeaderText = "OpportunityName";
        lastCreatedOpportunitiesGrid.Columns.Add(bOpportunityName);

        HyperLinkField bCSLink = new HyperLinkField();
        bCSLink.DataNavigateUrlFields = new string[] {"CsLink"};
        bCSLink.HeaderText = "CsLink";
        bCSLink.Text = @"<img src='" + ResolveUrl("/_layouts/15/xx/xx/Images/cs.gif") + "' /> ";
        lastCreatedOpportunitiesGrid.Columns.Add(bCSLink);

        lastCreatedOpportunitiesGrid.HeaderRow.CssClass = Constants.CssClasses.HeaderRow;
        lastCreatedOpportunitiesGrid.RowStyle.CssClass = Constants.CssClasses.Row;
        lastCreatedOpportunitiesGrid.AutoGenerateColumns = false;

        lastCreatedOpportunitiesGrid.EmptyDataText = Constants.Messages.NoOpportunitiesFound;

        this.Controls.Add(lastCreatedOpportunitiesGrid);
        LoadGridData();
    }

Paolo Tedesco · Accepted Answer · 2013-06-07 08:20:00Z

4

I think you should be setting CssClass in the HeaderStyle property:

lastCreatedOpportunitiesGrid.HeaderStyle.CssClass = Constants.CssClasses.HeaderRow;

The HeaderRow property gives you the GridView's header after the databinding. Check http://msdn.microsoft.com/en-us/library/system.web.ui.webcontrols.gridview.headerrow.aspx: "The HeaderRow property is available only after the GridView control creates the header row in the RowCreated event."

answered Jun 7, 2013 at 8:20

Paolo Tedesco

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Comments

sangram parmar · Accepted Answer · 2013-06-07 09:37:06Z

-1

try this

lastCreatedOpportunitiesGrid.HeaderRow.CssClass = "your_class_name";

answered Jun 7, 2013 at 9:37

sangram parmar

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1 Comment

Luis Valencia Over a year ago

you cant do that as I explained the HeaderRow object is null at that moment. Paolo answer solved it

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