Windows Forms: How to Populate PowerPoint with values in C#

In some projects, you may work with powerpoint files, such as filling in data from database to PowerPoint template file. You can find this article helpful.

Creating a simple powerpoint template as shows below.

Next, Create a simple form allows you to enter data, then populate data to powerpoint template file.

You need to download PptxTemplater from github website, then copy the PptxTemplater folder you downloaded into your project.

Adding a click event handler to the FillData button allows you to fill data from textbox to powerpoint file.

private void btnFillData_Click(object sender, EventArgs e)
{
    using (OpenFileDialog ofd = new OpenFileDialog() { Filter = "PowerPoint |*.pptx" })
    {
        if (ofd.ShowDialog() == DialogResult.OK)
        {
            FileInfo fileInfo = new FileInfo(ofd.FileName);
            string fileName = $"{fileInfo.Directory}\\{fileInfo.Name.Replace(fileInfo.Extension, "")}_data{fileInfo.Extension}";
            File.Copy(ofd.FileName, fileName);
            Pptx pptx = new Pptx(fileName, FileAccess.ReadWrite);
            int totalSlide = pptx.SlidesCount();
            if (totalSlide > 0)
            {
                PptxSlide slide = pptx.GetSlide(0);//default slide 0
                slide.ReplaceTag("{{fullname}}", txtFullName.Text, PptxSlide.ReplacementType.Global);
                slide.ReplaceTag("{{email}}", txtEmail.Text, PptxSlide.ReplacementType.Global);
                slide.ReplaceTag("{{address}}", txtAddress.Text, PptxSlide.ReplacementType.Global);
                pptx.Close();
                Process.Start(fileName);
            }
        }
    }
}

We will open the powerpoint template file, then copy it to another file and finally fill the data into the fields that we have defined.