# TextBox Regex

**URL:** <https://forum.radzen.com/t/textbox-regex/9841>\
**Category:** Radzen.Blazor Components\
**Created:** [January 12, 2022, 11:48am UTC](https://forum.radzen.com/t/textbox-regex/9841 "2022-01-12T11:48:18Z")\
**Posts on this page:** 7\
**Page:** 1

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**Author:** ![Giuseppe\_Pistorino](https://forum.radzen.com/user_avatar/forum.radzen.com/giuseppe_pistorino/32/8594_2.png) [@Giuseppe\_Pistorino](https://forum.radzen.com/u/Giuseppe_Pistorino)\
**Post date:** [January 12, 2022, 11:48am UTC](https://forum.radzen.com/t/textbox-regex/9841/1 "2022-01-12T11:48:18Z")

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Hi, I have a page where I need to save on db table a shedul time for each day of week  
ex.:  
Sunday from 09:00 to 18:00  
Monday from 09:30 to 18:00  
and so on...  
for each day I insert the start and stop time to do something. My question is, what is the best practice to format input? I thought to use a Text box and RegexValidator but I don't know how.  
Any suggestions?

Thanks in advance.  
Giuseppe

 ![Cattura](https://forum.radzen.com/uploads/default/original/2X/d/dd9afc9c15a383262d4530c4eecbba83b20f1d14.jpeg)

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**Author:** ![korchev](https://forum.radzen.com/user_avatar/forum.radzen.com/korchev/32/4_2.png) [@korchev](https://forum.radzen.com/u/korchev)\
**Post date:** [January 12, 2022, 2:04pm UTC](https://forum.radzen.com/t/textbox-regex/9841/2 "2022-01-12T14:04:57Z")

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Do you need help with the regular expression? Something like this could work: [c# - Regular expression to validate valid time - Stack Overflow](https://stackoverflow.com/questions/884848/regular-expression-to-validate-valid-time)

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<div class="post-metadata">

**Author:** ![Giuseppe\_Pistorino](https://forum.radzen.com/user_avatar/forum.radzen.com/giuseppe_pistorino/32/8594_2.png) [@Giuseppe\_Pistorino](https://forum.radzen.com/u/Giuseppe_Pistorino)\
**Post date:** [January 12, 2022, 2:12pm UTC](https://forum.radzen.com/t/textbox-regex/9841/3 "2022-01-12T14:12:58Z")

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@korchev no thanks, I don't know how use RegexValidator control, or if there is another way, or best practice or so to do that.  
If someone needs an "hour:minute" control what should they do? becouse in the radzen ide there is only dateTime control.  
Thanks

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<div class="post-metadata">

**Author:** ![korchev](https://forum.radzen.com/user_avatar/forum.radzen.com/korchev/32/4_2.png) [@korchev](https://forum.radzen.com/u/korchev)\
**Post date:** [January 12, 2022, 2:32pm UTC](https://forum.radzen.com/t/textbox-regex/9841/4 "2022-01-12T14:32:52Z")

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The DatePicker has time only mode.

 ![image](https://forum.radzen.com/uploads/default/original/2X/8/8d3199456c04e8eb22d67a7b5bb6c39be9eddd9b.png)

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<div class="post-metadata">

**Author:** ![Giuseppe\_Pistorino](https://forum.radzen.com/user_avatar/forum.radzen.com/giuseppe_pistorino/32/8594_2.png) [@Giuseppe\_Pistorino](https://forum.radzen.com/u/Giuseppe_Pistorino)\
**Post date:** [January 12, 2022, 2:38pm UTC](https://forum.radzen.com/t/textbox-regex/9841/5 "2022-01-12T14:38:15Z")

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@korchev thank you for your patience, but where I set time only mode in Radzen ide?

 ![Cattura](https://forum.radzen.com/uploads/default/original/2X/7/7ed579e229e8f763ac47641bdc900509ad54937c.jpeg)

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<div class="post-metadata">

**Author:** ![enchev](https://forum.radzen.com/user_avatar/forum.radzen.com/enchev/32/16_2.png) [@enchev](https://forum.radzen.com/u/enchev)\
**Post date:** [January 12, 2022, 2:47pm UTC](https://forum.radzen.com/t/textbox-regex/9841/6 "2022-01-12T14:47:57Z")

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![image](https://forum.radzen.com/uploads/default/original/2X/2/2fdd8df082d39e05dfa67c23e5fd8553e0df314d.png)

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<div class="post-metadata">

**Author:** ![Giuseppe\_Pistorino](https://forum.radzen.com/user_avatar/forum.radzen.com/giuseppe_pistorino/32/8594_2.png) [@Giuseppe\_Pistorino](https://forum.radzen.com/u/Giuseppe_Pistorino)\
**Post date:** [January 12, 2022, 3:24pm UTC](https://forum.radzen.com/t/textbox-regex/9841/7 "2022-01-12T15:24:33Z")

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@enchev @korchev thanks! 😊