Export to Pdf issue when using Template Columns Programmatically

[Pooya]

I have a RadGrid with template columns which are generated at runtime and added to a placeholder control on Page_Init.

Export to Excel and Word work fine using the built-in export features. Export to Pdf doesn't work properly in the sense that the template columns are not exported in the final pdf file. Only the GridBoundColumns are exported.

I have also set ExportOnlyData = false but didn't fix that issue.

Any clues?

Thanks,

[Daniel]

Hello Pooya,

What is rendered in this template? Can you post the output HTML? Note that if you are using tables you have to add colgroup/col elements and width in absolute units as explained in this topic:
PDF export

Regards,
Daniel
the Telerik team

[Pooya]

Thanks; yes.

Each template column is a table with 2 rows and 1-4 columns (depending on what parameter is passed I'm regenerating the RadGrid dynamically).

The html which is rendered in the header is like this:

<th class="rgHeader" scope="col"><table style="width: 100%; border-collapse: collapse;" cellSpacing="0" cellPadding="0">
<tbody><tr>
<td colSpan="2" align="center">MONDAY</td>
</tr><tr>
<td style="width: 50%;">AM</td><td style="width: 50%;">PM</td>
</tr>
</tbody></table>
</th>

That's generated by adding an ASP.NET Table control to the container object of the InstantiateIn() method when ITemplate is implemented.

[Daniel]

Hello Pooya,

The table should be rendered as explained in the help topic otherwise RadGrid won't export it. You can make your own class that inherits the asp.net table and modify the rendering so that it adds colgroup/col elements. Sample code:

public class MyTable : Table
{
    public override void RenderBeginTag(HtmlTextWriter writer)
    {
        base.RenderBeginTag(writer);
        int cells = this.Rows[0].Cells.Count;
        StringBuilder outputString = new StringBuilder("<colgroup>");
        for (int colel = 0; colel < cells; colel++)
            outputString.Append("<col/>");
        outputString.Append("</colgroup>");
        writer.Write(outputString.ToString());
    }
}

Regards,
Daniel
the Telerik team

[Pooya]

Great, thanks that problem is sorted.

How would it be possible to set a CSS style programmatically for the GridBoundColumns and TemplateColumns?

The texts appearing too big at the moment and don't fit the page.

Thanks

[Daniel]

Hello Pooya,

You can use ItemCreated/ItemDataBound events to set the desired CSS styles on the target items/cells:

bool isExport = false;
protected void Button1_Click(object sender, EventArgs e)
{
    isExport = true;
    RadGrid1.MasterTableView.ExportToPdf();
}
protected void RadGrid1_ItemCreated(object sender, GridItemEventArgs e)
{
    if (e.Item is GridDataItem && isExport)
        e.Item.Style["background-color"] = "#888888";
}

For more information, please examine the following links:
Export to PDF
PDF export

Kind regards,
Daniel
the Telerik team