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can i change app.config file so that value of key changes when MenuItem gets checked / unchecked

hi , this is my key in the app.config file
<add key="AppendTextBoolean" value="True" />

this is how i read it
Dim bConcatenateOutput As Boolean = System.Configuration.ConfigurationSettings.AppSettings("AppendTextBoolean")

this is the Menu_click event
Private Sub mnuAppendToOutput_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles mnuAppendToOutput.Click
If mnuAppendToOutput.Checked = True Then
mnuAppendToOutput.Checked = False
System.Configuration.ConfigurationSettings.AppSettings("AppendTextBoolean") = "False"
Else
mnuAppendToOutput.Checked = True
System.Configuration.ConfigurationSettings.AppSettings("AppendTextBoolean") = "True"
End If

End Sub

can i set the value of the Key to to change, because currently it says it is read only when i try to run the above code
thanks

RonaldBiemans

Hi Jxharding how are you?

yes you can,

something like

dim ds as new dataset

ds.ReadXml(Application.StartupPath & "\yourexename.exe.config")
ds.Tables(1).Rows(0).Item(1) = "False"

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RonaldBiemans

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jxharding

ASKER

hi ronald, i'm doing great thanks!

is there an easy way perhaps of reading the value when the application starts?
because currently i'll prob have to read it into a dataset, then make a dataview,sort it / filter it
locate the key i need e.g. MyBoolean , and then set the menu item to checked or not.

thanks for the help!

jxharding

ASKER

please ignore last comment from myself, it was really stupid of myself. i haven't done this in a while.

thanks for the help again!