Source info deleted but chart still shows

[CAPTGNVR]

Dear All

I have a 30 days info in one sheet and a chart based on this source.

When the month is over I delete the contents but the graph still shows in
the chart.

The way I am doing is to go to the chart-source and delete the source range
and re-enter same, then the chart gets cleared.

Can anyone tell me how to do in VB so that the source sheet contents are
deleted? (excel 97)

brgds/captgnvr

 

[ShaneDevenshire]

Hi,

Try turning on Automatic recalculation - Tools, Options, Calculation,
Automatic. Or press F9 after you clear the data.

Question - if you are going to put new data in the data area why do you care
if the chart clears or not if when you add the new data the chart is updated?
Besides, why clear the data, why not just type over it with the new data?

 

[CAPTGNVR]

Thank you Shane for quick response.

It is on automatic calculation. Hvr, wl try pressing F(.

I did not try the chart after putting the new data. I just saw after
erasing the data the chart was still showing and so wanted to find out.

I have to clear the data after the month is over and enter daily information
and see the chart-- (it is like oil tanks temperatures)

Thnks n brgds/captgnvr

 

[JLGWhiz]

I am not sure how you maintain your chart, but the displayed values on the
chart are based on the values in the data range series. If you clear the
data range series, then the chart should automatically go to zero for each
data series. I do understand that you update the temperature readings daily
and enter them into a worksheet, from which the chart draws its data. But I
don't know how you have your data series set up in the chart itself. i.e. If
it draws directly from the range where you enter the readings, or if there
are calcultions that occur and perhaps post to another range on the
worksheet. But you can right-click on the plotted lines, or bars, on the
chart and select Source Data, Then click the Series Tab and at the bottom of
the dialog box it lists the data series by name. You can select the series
you want to look at it will show in a window to the right, which worksheet
and range the data comes from that causes the chart to plot. Don't change
any of that data unless you know for sure what you are doing. It will screw
up your plots.

Maybe this will help you to understand what is happening.