Questions on UI for WinForms Forum

3 answers

56 views

Header of graphical view in 5 minute increments

Hello, I have tried modifying https://docs.telerik.com/devtools/winforms/ganttview/timeline/custom-timeline to have it do custom ranges, however when I run my copy I get a fully blank header. See attached for images.

My setting the custom behavior:

radGanttView1.GanttViewElement.GraphicalViewElement.TimelineStart = start; // Start is a DateTime

radGanttView1.GanttViewElement.GraphicalViewElement.TimelineEnd = end; // End is a DateTime

radGanttView1.GanttViewElement.GraphicalViewElement.OnePixelTime = TimeSpan.FromMinutes(0.0025);

radGanttView1.GanttViewElement.GraphicalViewElement.TimelineRange = TimeRange.Custom;

var behavior = new WarehouseTimelineBehavior { Start = start, End = end };

radGanttView1.GanttViewElement.GraphicalViewElement.TimelineBehavior = behavior;

And my Behavior class:

001.using System;

002.using System.Collections.Generic;

003.using Telerik.WinControls.UI;

004.

005.namespace WarehouseBuilder.LogViewer

006.{

007. public class WarehouseTimelineBehavior : BaseGanttViewTimelineBehavior

008. {

009. public DateTime Start = DateTime.MinValue;

010. public DateTime End = DateTime.MaxValue;

011.

012. public override DateTime AdjustedTimelineStart

013. {

014. get

015. {

016. if (GraphicalViewElement.TimelineRange != TimeRange.Custom || Start == DateTime.MinValue)

017. {

018. return base.AdjustedTimelineStart;

019. }

020. return Start;

021. }

022. }

023.

024. public override DateTime AdjustedTimelineEnd

025. {

026. get

027. {

028. if (GraphicalViewElement.TimelineRange != TimeRange.Custom || End == DateTime.MaxValue)

029. {

030. return base.AdjustedTimelineEnd;

031. }

032. return End;

033. }

034. }

035.

036. public override IList<GanttViewTimelineDataItem> BuildTimelineDataItems(TimeRange range)

037. {

038. if (range != TimeRange.Custom)

039. {

040. return base.BuildTimelineDataItems(range);

041. }

042. return this.BuildTimelineDataItemsForDecadesRange();

043. }

044.

045. public IList<GanttViewTimelineDataItem> BuildTimelineDataItemsForDecadesRange()

046. {

047. List<GanttViewTimelineDataItem> result = new List<GanttViewTimelineDataItem>();

048. DateTime currentDate = AdjustedTimelineStart;

049. int currentMinuteNumber = currentDate.Minute;

050. int newMinuteNumber = currentMinuteNumber;

051.

052. GanttViewTimelineDataItem item = new

GanttViewTimelineDataItem(currentDate, currentDate.AddMinutes(5), GraphicalViewElement.TimelineRange, GraphicalViewElement.OnePixelTime);

053.

054. result.Add(item);

055.

056. while (currentDate < AdjustedTimelineEnd)

057. {

058. item.End = currentDate.AddMinutes(5);

059. currentDate = currentDate.AddMinutes(5);

060. newMinuteNumber = currentDate.Minute;

061.

062. if (newMinuteNumber != currentMinuteNumber && currentDate <= AdjustedTimelineEnd)

063. {

064. currentMinuteNumber = newMinuteNumber;

065. item = new

GanttViewTimelineDataItem(currentDate, currentDate, GraphicalViewElement.TimelineRange, GraphicalViewElement.OnePixelTime);

066. result.Add(item);

067. }

068. }

069.

070. return result;

071. }

072.

073. public override GanttTimelineCellsInfo GetTimelineCellInfoForItem(GanttViewTimelineDataItem item, TimeRange timeRange)

074. {

075. if (timeRange != TimeRange.Custom)

076. {

077. return base.GetTimelineCellInfoForItem(item, timeRange);

078. }

079.

080. return GetTimelineCellInfoForDecadeRange(item);

081. }

082.

083. public GanttTimelineCellsInfo GetTimelineCellInfoForDecadeRange(GanttViewTimelineDataItem item)

084. {

085. int minutes = 5;

086.

087. if (item.Start == AdjustedTimelineStart)

088. {

089. if (item.Start.Minute % 5 > 0)

090. {

091. minutes = 10 - (item.Start.Minute % 5);

092. }

093. }

094.

095. if (item.End == AdjustedTimelineEnd)

096. {

097. if (item.End.Minute % 5 > 0)

098. {

099. minutes = item.End.Minute % 5;

100. }

101. }

102.

103. return new GanttTimelineCellsInfo(minutes);

104. }

105.

106. public override string GetTimelineTopElementText(GanttViewTimelineDataItem item)

107. {

108. if (item.Range != TimeRange.Custom)

109. {

110. return base.GetTimelineTopElementText(item);

111. }

112.

113. string format = "{0} - {1}";

114.

115. return string.Format(System.Threading.Thread.CurrentThread.CurrentUICulture, format, item.Start, item.End);

116. }

117.

118. public override string GetTimelineBottomElementText(GanttViewTimelineDataItem item, int index)

119. {

120. if (item.Range != TimeRange.Custom)

121. {

122. return base.GetTimelineBottomElementText(item, index);

123. }

124.

125. string format = "{0:hh:mm}";

126.

127. return string.Format(System.Threading.Thread.CurrentThread.CurrentCulture, format, new DateTime(item.Start.Minute + index, 1, 1));

128. }

129. }

130.}

GanttView

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I currently try to achieve something similar to the attached picture.

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