Validating data datagrid

29-May-2018 00:39

The C# code snippet will enable the data cell validation in a textbox column for entering only none empty strings, which will disable the data validation and display the error indicator at the row header.Hello I have a datagrid and would like to validate one field. They told me they were more intested in my analyst skills and I could learn the programming when I started.

The event only seems to be called on the column you make a change to and you have to make a change to the column in order for the event to be called.

This expression works if there is one validation error.

But if you don't have any validation errors the data binding fails. This is a good article but I agree with others who requested a project download... , I did Hello World, worked fine, but am I missing step in between to be able to achieved this puzzle, or I am going too quick. Nice web site, but you should add steps to know what to try first, second,...

I have been able to resolve the outstanding part of this question myself.

I did make use of the Before Col Udpate event when a value was entered/changed in a column so thank you Tim Cottee for this suggestion.

The event only seems to be called on the column you make a change to and you have to make a change to the column in order for the event to be called.This expression works if there is one validation error. But if you don't have any validation errors the data binding fails. This is a good article but I agree with others who requested a project download... , I did Hello World, worked fine, but am I missing step in between to be able to achieved this puzzle, or I am going too quick. Nice web site, but you should add steps to know what to try first, second,... I have been able to resolve the outstanding part of this question myself.I did make use of the Before Col Udpate event when a value was entered/changed in a column so thank you Tim Cottee for this suggestion.To validate data to grid cells and rows, we need to use the Validate Cell event, which will be raised by the Kettic Data Grid View when there are any changes to the current cell or when the grid cell loses input focus like.