Datatable filterModel error

[furkanmturgut]

    <TColumn field="state" header="Talep Durumu" style="20%" :showFilterMenu="false">
        <template #body="{ data }">
          <TTag :value="data.state ? 'Talep Alındı' : 'Talep Bekliyor '" :severity="getSeverity(data.state)" />
        </template>
        <template #filter="{ filterModel,filterCallback }">
          <TDropdown v-model="filterModel.value"  @change="filterCallback()" :options="requestFilter"
            placeholder="Filtrele" style="width:100%;">
            <template #option="slotProps">
              <TTag :value="slotProps.option.state ? 'Talep Alındı' : 'Talep Bekliyor '"
                :severity="getSeverity(slotProps.option.state)" />
            </template>
          </TDropdown>
        </template>
      </TColumn>
    </TDataTable>

I'm learning Vuejs, but it gives the filterModel undefined error. What is the reason?

[tugcekucukoglu]

How do you set filterDisplay property, menu or. row? You could also check that how to set filter property from documentation examples.