How to bold values in the Expression builder?

Migrateduser

<div>Hello,</div>
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<div>I have a problem to bold part of value in the Expression builder.</div>
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<div>E.g.</div>
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<div>I have expression:</div>
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<div>dataSetRow["name"] + " " + dataSetRow["lastName"] + ", a.k." + dataSetRow["code"]</div>
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<div>and I would like to bold part of values of this expression.</div>
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<div>E.g. </div>
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<div><b>dataSetRow["name"]</b> + " " + dataSetRow["lastName"] + ", a.k." + <b>dataSetRow["code"]</b></div>
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<div>Thank you in advance.</div>