I am trying to control the length of the text box. The property of the textbox only has maxlength tool. If I want to set minimum length for textbox to be 3, how can I proceed this?
I want an error to pop up when someone types 10 instead of 100. User can only put a combination of 1 and 0 like 100,000,010,001, etc. Type of these are double.(not string)
handle the Textbox control validating event. See this
Related
I have a combo box in a form which has two options : correct and incorrect. There is another textbox field which is set not required in Required field property of the table but when combo box selection makes "incorrect", it should automatically force user to fill in textbox i.e. mandatory to fill in textbox
Could anyone please help me out how to fix this.
Thanks!
On the After Update event of the combo box check the selected value. If it is "incorrect" set the focus to the textbox and then use the After Update event of the text box to verify the conditions for filling the text box are satisfied otherwise reset the focus back to the text box (and possibly put on a message box to explain why).
In VB Win-forms Application a NumericUpDown Control is used for only to scroll numbers. Its definition is:
The Windows Forms NumericUpDown control looks like a combination of a text box and a pair of arrows that the user can click to adjust a value. The control displays and sets a single numeric value from a list of choices. As Shown here.
I want to use strings instead of numeric values. For example, Grades: "A","B","C", etc. I think I will need to use UserContorl to code another custom "StringUpDown" Control.
You can't add String values to Numeric Drop down. instead for this you can use DomainUpDown here is the code to place a DomainUpDown in your form that contains A - Z characters
Dim domainUpDown1 As DomainUpDown
domainUpDown1 = New System.Windows.Forms.DomainUpDown()
For i As Integer = 65 To 90
domainUpDown1.Items.Add(Chr(i))
Next
Controls.Add(domainUpDown1)
Note : This control is available in Tool box also
You can change values using the ByRef=""
e.g. RefValues="Red;Blue;Green;Brown"
Hope this is what you were looking for
Link: mindStick
I would like some code which can:
Pick up a number that has been entered in a text box in a user form.
The text box is called Height
Thanks
You can get the value from the text box like this.
Dim heightInput = Height.text
However, you should do some validation before assuming it is a valid number.
such as
Dim validHeight as Integer
If int.TryParse(heightInput, validHeight) then
' Put code here
End If
for more
http://www.homeandlearn.co.uk/NET/nets1p14.html
I have done a research on this but can't seem to find a convincing answer. Here is the scenario. I am doing a reporting application in rdlc. I am getting field values from my database and displaying in the text boxes. Please see below what I display in the report
Textbox1
Textbox2
Textbox3
In case the value of text box 2 or any other text box is null, I don't display the same using the formular
iif(fields!Textbox2.value is nothing, false, true)
for example this is what I get
Textbox1
Textbox3
with a space between textbox1 and textbox3. I dont want this space to appear incase the value is null. How can I handle this? Thank you
If you're using a simple TextBox you have to set Visibility and CanShrink property.
If you're using a TextBox in a Table/Tablix you have to set Visibility property of the entire TableRow containing the TextBox.
is it possible in design mode to set the textbox text property to the text property of a textbox in a different form in vb.net?
You could use the ApplicationSettings.PropertyBinding property of the text box to accomplish what you want. If you sort the text box properties A-Z, it should be the first one in the list in parenthesis. Just create a shared application value and it will apply to each control that binds to the value.