IHeader
A survey header configuration interface.
An IHeader object configures advanced survey header appearance settings. To apply them, you need to assign the object to the header property of your theme configuration and set the headerView property to "advanced".
Properties
Methods
Events
An image to display in the background of the header. Accepts a base64 or URL string value.
- Type:
- string readonly
- Implemented in:
- IHeader
A string value that specifies how to resize a background image to fit it into the header.
Possible values:
"cover"(default)
Scales the image to the smallest possible size that fills the header. The image preserves its aspect ratio but can be cropped if the header's proportions differ from that of the element."fill"
Stretches the image to fill the entire header."contain"
Scales the image to the largest possible size without cropping or stretching it."tile"
Tiles as many copies of the image as needed to fill the entire header.
- Type:
- "contain" | "cover" | "fill" | "tile" readonly
- Implemented in:
- IHeader
A value from 0 to 1 that specifies how transparent the background image should be: 0 makes the image completely transparent, and 1 makes it opaque.
- Type:
- number readonly
- Implemented in:
- IHeader
A string value that specifies the survey description position within the header in the horizontal direction.
Possible values:
"left"(default)"right""center"
To specify a survey description, set SurveyModel's description property.
- Type:
- HorizontalAlignment readonly
- Implemented in:
- IHeader
A string value that specifies the survey description position within the header in the vertical direction.
Possible values:
"bottom"(default)"top""middle"
To specify a survey description, set SurveyModel's description property.
- Type:
- VerticalAlignment readonly
- Implemented in:
- IHeader
The height of the survey header in pixels.
Default value: 256
- Type:
- number readonly
- Implemented in:
- IHeader
A string value that specifies whether the header spans the width of the survey or that of the survey container.
Possible values:
"survey"
The header width is the same as the survey width."container"(default)
The header width is the same as the survey container width.
- Type:
- "survey" | "container" readonly
- Implemented in:
- IHeader
- See also:
- SurveyModel.width , SurveyModel.widthMode
A Boolean value that specifies whether the header overlaps the survey content.
Default value: false
- Type:
- boolean readonly
- Implemented in:
- IHeader
The width of the header area that contains the survey title and description, measured in pixels.
Default value: 512
- Type:
- number readonly
- Implemented in:
- IHeader
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