Category Archives: graphics

Save several images into Access in C#

The example Save images in an Access database in C# includes an Access database. Unfortunately if you save several images into the database and then open the database in Access, Access removes the images. It just doesn’t seem to understand … Continue reading

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Load images from an Access database in C#

The post Save images in an Access database in C# explains how to save images in an Access database. This post explains how to load images from an Access display them. Like previous examples, this program uses a SQL statement … Continue reading

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Save images in an Access database in C#

This example shows how you can save images in an Access database. The example Use filenames stored in a database to display images in C# shows how to display images by saving the image file names in a database and … Continue reading

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Use filenames stored in a database to display images in C#

The reason so many people ask how to store and retrieve images in a database is that it’s hard. You need to use a special data type such as the BLOB (Binary Large Object) or MEMO data type depending on … Continue reading

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Move and resize multiple rectangles in WPF and C#

The example Let the user move and resize a rectangle in WPF and C# shows how to let the user move and resize a single rectangle in a WPF program. This example extends that one to let you move and … Continue reading

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Understand AutoScaleMode in C#

A form’s AutoScaleMode property lets a form automatically resize itself when its font changes. This can be particularly useful with an aging user population that may have trouble seeing smaller fonts. To try to help users out, you can give … Continue reading

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Draw transformed text in C#

This example uses the following Paint event handler to draw transformed text. // Draw some transformed text. private void Form1_Paint(object sender, PaintEventArgs e) { // Transform. e.Graphics.ScaleTransform(1.5f, 1.5f, MatrixOrder.Append); e.Graphics.RotateTransform(25, MatrixOrder.Append); e.Graphics.TranslateTransform(80, 30, MatrixOrder.Append); // Make a font. using (Font … Continue reading

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Make a sunburst chart in C#, Part 4

The previous post showed how to make a sunburst chart with curved text. This example extends that one so it can draw multi-line text. The previous post used the DrawTextOnArc method to draw curved text. The text is a distance … Continue reading

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Make a sunburst chart in C#, Part 3

The post Make a sunburst chart in C#, Part 1 shows how to build a basic sunburst chart. The post Make a sunburst chart in C#, Part 2 enhances that example by drawing each node’s text at an angle so … Continue reading

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Make a sunburst chart in C#, Part 2

The post Make a sunburst chart in C#, Part 1 explained how to build a simple sunburst chart. Unfortunately the node labels used by that chart didn’t fit their wedges very well because the text was all drawn horizontally. This … Continue reading

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