I want to only allow positive numbers in my <v-text-field>. Is there a way to achieve this using props or any other method?
Below is the code snippet:
<v-text-field
:value="0"
class="mr-0 pt-0"
hide-details
single-line
type="number"
style="max-width: 60px; "
min=0
v-model="portata.quantita_portata"
></v-text-field>
Your programming solution should function correctly.
It is functioning properly for me as well.
Additionally, if it does not work as expected, you have the option to utilize the oninput attribute.
Here is an example based on your input:
<v-text-field
v-model="portata.quantita_portata"
type="number"
oninput="if(this.value < 0) this.value = 0;"
></v-text-field>
To ensure accuracy, round off the value in a quantity field if needed.
<v-text-field
class="mr-0 pt-0"
hide-details
single-line
type="number"
style="max-width: 60px; "
v-model="portata.quantita_portata"
@change="changeQuantity"
></v-text-field>
Here is the method used:
changeQuantity (qty) {
const val = Math.round(Number(qty))
let quantity = val
if (val <= 0) {
quantity = 0
}
this.portata.quantita_portata = quantity
}
Although it may not be the perfect fix, this solution worked for me and could potentially work for you too. I decided to use a key to trigger the re-rendering of my element. Without using the key, the functionality still works; however, if you adjust the range using v-text-field itself, it might disregard the conditions and allow negative numbers to be inputted. Below is a snippet of the code I utilized:
<v-text-field
v-model="form.storyboard_reject_count"
:label="$tr('storyboard_reject_count')"
:type="'number'"
@input="validateNegativeNumber('src_key',
'storyboard_reject_count')"
:key="src_key"
/>
validateNegativeNumber(key, value){
if(this.form[value] < 0){
this.form[value] = 0;
this[key]++;
return;
}
},
To include a watcher, follow these steps:
watch: {
'portata.quantita_portata': {
handler: function (after, before) {
// Check for any changes made.
if(after < 0)
{
this.portata.quantita_portata = 0;
// this.portata.quantita_portata = before; // Alternative approach
}
},
deep: true
}
}
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