c# - WPF two-way binding -


i have textbox property fontsize = "12" , slider, , not remember how use command = mode twoway , when moving slider resize text of textbox.

here leave code trying use not work me

<textbox x:name="textbox1" margin="16,16,16,49" textwrapping="wrap"                  isreadonly="true" verticalscrollbarvisibility="auto" fontsize="12" />  <slider x:name="slider" horizontalalignment="left" margin="20,78,0,-1"             width="166" maximum="50" minimum="12" value="{binding             path=textbox1.fontsize,mode=twoway}" />

try this, i.e. bind value of slider fontsize property of textbox using elementname.

<textbox x:name="textbox1" margin="16,16,16,49" textwrapping="wrap"                  isreadonly="true" verticalscrollbarvisibility="auto" fontsize="12" />  <slider x:name="slider" horizontalalignment="left" margin="20,78,0,-1"             width="166" maximum="50" minimum="12" value="{binding path=fontsize, elementname=textbox1}" />

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