Setting Colors

Estimated reading time: 13 minutes

When setting colors at design-time, click on the right side of the property at the . Three tabs appear, Custom , Web , and System . Not all color names may be recognized by other browsers. So when specifying color values for Web pages to work across different browsers, use the RGB color values.

Custom:

When the Custom tab is selected, the following is displayed.

When a custom color is selected that is not also a “named” color, three separate color intensities compose the color. These three color components are combined into one number, which is what the property is. The code behind generated for a custom color will look something like the following (where ForeColor represents the property being set):

 **FromArgb((255 *As System.Byte), (192 *As System.Byte), (255 *As System.Byte))** 
        

If the custom color is a “named” color, the code behind generated will look something like:

*this.ForeColor = System.Drawing.Color. **Red** 

Web

When the Web tab is selected, the following is displayed.

Setting colors for a form or control at design-time uses the structure. The code behind generated will look something like the following (where BackColor represents the property being set):

*this.BackColor = System.Drawing.Color. **LightGray** 

Setting colors for a cell, field, or record in a subfile at run-time also uses the System.Drawing.Color structure. The order in which the properties are set, determines the actual color displayed. If you set the color for a cell and then set the color for the field or record in which the cell resides, the last color setting overrides the previous color setting for the cell. The same applies to setting a field which can be overridden by setting the color of the record in which that field resides.

For example:

/* sets the background color of field 2 to yellow
 mySubfile.FieldBackColor[1] = System.Drawing.Color.Yellow 

 /* sets the background color of a cell to red  
 mySubfile.CellBackColor[0,0] = System.Drawing.Color.Red

/* set the background color of record 2 to Gold (which overrides field 2/record 2 from yellow to gold)  
 mySubfile.RecordBackColor[1] = System.Drawing.Color.Gold

Finally Results in:

    <br />

However, by changing the order in which the commands are executed, you can also change how the subfile data will appear.

For example:

/* sets the background color of a cell to red  
 mySubfile.CellBackColor[0,0] = System.Drawing.Color.Red

    <pre class="prettyprint"> /* set the background color of record 2 to Gold    mySubfile.RecordBackColor[1] = System.Drawing.Color.Gold</pre>

/* sets the background color of field 2 to yellow (which changes field 2/record 2 from gold to yellow).
 mySubfile.FieldBackColor[1] = System.Drawing.Color.Yellow 

Finally Results in:

    <br />

The following table shows the System.Drawing.Color. color ** , the hexadecimal number equivalent, and the red, green, and blue decimal values. The hexadecimal values are preceded by the pound character (#), in the form **#RRGGBB . RR , GG , and BB represent hexadecimal values from 0 to 255 that indicate the red, green, and blue components of a color, respectively.

System

The system colors are used to paint various parts of the display. Selecting a system color creates a SystemColors color structure that is the color of a windows display element. See for a complete list of the members. When the System tab is selected, the following is displayed: