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Validating datagridview

Its not permissible to have the two selected to true, but they can both be false. I need to check that only one of the two can be checked. I owe you one, Bob "Bart Mermuys" In a datagridview (vs2005, VB.net) I have two columns that are checkboxes. Value" for both Check Box, only for the non-editing Check Box, for the the editing Check Box you need to use e. (Note, Formatted Value is either a Boolean (Three State=false) or a Check State (Three State=true). Data Grid View Cell Validating Eve nt Args) Handles Datagrid1. otherwise the event does a validation on other types of fields and returns errors, but that was easy. I think common behaviour is so that the user can't leave the cell once validation fails and is forced to correct it before he can leave the cell. But there is a problem in your code, you can't use "Data Grid View[,]. In this way you will not have the records with null values in gridview. so you have taken the data from excel into dataset... Fetch this records into dataset/datatable and then bind this dataset/datatable to gridview I will vote but please tell me Data Set ds=new Data Set(); ds. Hi, Please tell me one thing I am just at the edge of solving it. Private Sub Datagrid1_Cell Validating(By Val sender As Object, By Val e As System.

validating datagridview-88validating datagridview-80

Insert only those records in the grid which does not have null values. Now you can select the record from dataset where your second column is not null. Oh by the way, I had to add an if condition to do the testing in the cellvalidating only when either of these two checkbox fields gets edited. Data Property Name = "Cell_2") Then other Check = CBool(Datagrid1("Cell_1", e. I wrote code in the cellvalidating event as follows. I noticed that when I click on the checkbox to uncheck it after the e.cancel executed, that click does not change its value, I can both see in the UI that the value did not change before the cellvalidating event is called and in the cellvalidating event itself, when I set a breakpoint after the line that checks and verify the value of CBool(Datagrid1("Cell_2", e. I'm going to revisit the sample mdb that I sent to the newsgroup, I still wonder why that did not work. NET doesn't use a short-circuiting AND operator by default and therefore CBool is used on other cells too. Its not permissible to have the two selected to true, but they can both be false. Error Text = "" Dim other Check As Boolean = False If (Datagrid1. I noticed that when I click on the checkbox to uncheck it after the e.cancel executed, that click does not change its value, I can both see in the UI that the value did not change before the cellvalidating event is called and in the cellvalidating event itself, when I set a breakpoint after the line that checks and verify the value of CBool(Datagrid1("Cell_2", e. I need to check that only one of the two can be checked. Data Property Name = "Cell_1") Then other Check = CBool(Datagrid1("Cell_2", e. I wrote code in the cellvalidating event as follows. Data Grid View Cell Validating Eve nt Args) Handles Datagrid1. If I then ckeck the second checbox (cell_2), it gives me the error message but does not return the second checkbox I checked to its unchecked state. Any help appreciated, Bob In a datagridview (vs2005, VB.net) I have two columns that are checkboxes. Its not permissible to have the two selected to true, but they can both be false. I wrote code in the cellvalidating event as follows. Its not permissible to have the two selected to true, but they can both be false. Error Text = "" Dim other Check As Boolean = False If (Datagrid1. Private Sub Datagrid1_Cell Validating(By Val sender As Object, By Val e As System. Cancel = True End If End If End Sub Say I checked just one checkbox Cell_1 to start, the code allows the change to be made. I press the sacep key after the e,cancel and the message and I get the same problem. Data Property Name = "Cell_2") Then If CBool(Datagrid1("Cell_1", e. Private Sub Datagrid1_Cell Validating(By Val sender As Object, By Val e As System. Cancel = True End If End If End Sub Say I checked just one checkbox Cell_1 to start, the code allows the change to be made. I press the sacep key after the e,cancel and the message and I get the same problem. I need to check that only one of the two can be checked. Data Property Name = "Cell_2") Then other Check = CBool(Datagrid1("Cell_1", e. Its just that my UI does not respond correctly and I can't expect my users to get out of it that way. Bob "Bob" In a datagridview (vs2005, VB.net) I have two columns that are checkboxes.

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