Resetting controls

[Keith Stephens]

Hello,
In the attached screen shot you will see on the left side I have 3 drop down boxes and below them I have a list of employees.
The drop down boxes are Division, region, branch.  Upon choosing these it filters the employees to show.
When the user selects an employee then I populate the information on the right side. I am mainly concerned about the pie chart, the bar chart, and the radgrid.

I need to get 2 things done, and I don't know how to get this accomplished.

1. When an employee is selected I need in the bar chart that employee's bars to be a diffenent color, shows that this employee is selected.  http://www.telerik.com/community/forums/aspnet-ajax/chart/change-color-of-bars-for-selected-user.aspx corresponding help request.

2. When the user chooses another division, region or branch, I need the pie chart, bar chart, and radgrid to blank out.

The Division, Region, Branch and employee listing are in a user control. The radgrid is in a user control.  The chart on on the page I am using the sqldatasource control to do my binding. 

All controls are in an Ajax update panel.  I have an event handler which fires when an employee is selected for populating that employees info for the right side of the page.  I have tried this with selecting of Division, Region and branch but it did not work.
In this event I tried setting the datasource to null and rebinding, I tried .RemoveSeries but nothing has worked.

A small working sample would be very helpful.  In item 1 above in the other post they just supplied a few lines of code, not sure where to put that code ect...

If I need to supply specific code or anything else just let me know.
Thanks,
Keith.

[Missing User]

Hi Keith Stephens,

In the attached file you can find a sample project which demonstrates how to change the colors of the bars according to a DropDownList selection. As it is already described in this forum post, you can achieve that through the RadChart.Series[i].Appearance. For example:

radChart1.Series[0].Appearance.FillStyle.MainColor = Color.Red;
radChart1.Series[0].Appearance.FillStyle.FillType = Telerik.Charting.Styles.FillType.Solid;

When you select another division, region or branch, you can clear the RadChart.Series collection, until a new employee is selected and after that fill them again. For example:

radChart1.Series.Clear();

In the sample project, I am using two buttons to demonstrate this approach. The "ClearData" button clears the series and the "PopulateData" button populates the data again. You can also change the default EmptySeriesMessage:

radChart1.PlotArea.EmptySeriesMessage.TextBlock.Text = "My custom empty series message";

You can review the online help topic about "How Do I Assign Individual Colors to Bars?" here.

I hope that this information helps.

All the best,

Polina

the Telerik team