Hello,everyone! I want to find a winform by its name in my project. At first, I thougt it could return the specific form with codes like below:

for each iForm as Form in XXX
'do someting
return iForm
next

Is this right or not? If right, what's the collection included forms of project? If wrong, what should I do? Would you give me some suggestions or demo? Thanks!

Hello,Henry! Thanks for your suggestion and the artcile.I've read it.It also give me some help!I have solved this quesiton with all you suggest.Finally I found the textboexes were in a form's tabpage's pannel. Thanks all of you!

Hi,Simon! I have tried what like you said,but it didn't find the textboxes.In this project, the Form "frmQia" was Inited after I clicked a button and after I inputed some textes in it, I would leave it. The sub that I wrote will be called in another Button_Click event after I leave the form.I think the form "frmQia" has hold the textboxes and their name were right.So...What happened to me...

Thank you, I will try it now! :-D

Hi,everyone!The Textboxes were in a Tabpage which was in the Form I wrote in code to find. So I should find textboxes I need in frmQia.Tabcontrol1? :wtf:

Hello,everyone! I tried to use Sub like below to caculate. But when the project run, the two textboxes which I wanted to get their "Text" value could not find.Could anyone give me some suggestions or help? Thank you!

Public Function TotalSub(ByVal j As Integer, ByVal diameter As String, ByVal thickness As String, ByVal material As String)
Dim txtGG, txtYL As TextBox
Dim b As String = ""
Dim sum As Single = 0
For Each ctrl As Control In frmQia.Controls
If Not TypeOf ctrl Is TextBox Then Continue For
For i = 1 To j
If ctrl.Name = "txtTJGG" & i Then
txtGG = ctrl
ElseIf ctrl.Name = "txtTJYL" & i Then
txtYL = ctrl
End If
b = Caculate.Weight_Sub(diameter, txtGG.Text, thickness, material, txtYL.Text)
sum += CSng(b)
Next
Next
Return sum
End Function

(I have try to find textboxes like these code in another project with only one form, it could find them. So I don't know why it didn't work when it in a project with some forms:confused::confused:)

Hello,everyone! I've knowan how to click treenode to make tabpages selected and show, but I don't want users could click the tabpage and selected one of them. I searched in internet and found that it should use a intenger such as "tab = 1" in some Tabcontrol and Tabpage events like this webpage said whick use TabPage1_Validating & TabPage1_Enter like below :

Private Sub TabPage1_Validating(ByVal sender As System.Object, ByVal e As System.ComponentModel.CancelEventArgs) Handles TabPage1.Validating
If tab = 1 Then
e.Cancel = True
Else
e.Cancel = False
End If
End Sub

Private Sub TabPage1_Enter(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TabPage1.Enter
tab = 1 ' setting the selected tab when user gets back to this tab
End Sub

I tried it and now the tabpage could not click,but when I clicked treenode, it could not selected tabpage too.In fact,I didn't understand how the code in the webpage made tabpage disable click after I looked up in MSDN... X| Could anyone give me some suggestions and help? Thanks a lot!

Hello,Dave! I have put code like "if e.node.checked = true" in the start of the NodeMouseClick Event, but it also link to tappage. I found that I should use AfterSelect Event in MSDN.How silly I am...

Hello,everyone! I have a treeview with checkboxes, I use "AfterCheck" event and "NodeMouseClick" event and now the treenode could change color and link to tabpages. What I question is , if a treenode didn't be checked, when I clicked the checkbox, the "NodeMouseClick" event also actived, one tabpage was selected;But I wanted that, when I clicked the checkbox, it just make the node be checked, I should clicked the node again to make tabpage display. What should I do with treeview's event?PLZ give me some suggestions! Thx!

Hello,everyone! Now I use the method "selectsinglenode" with xpath to search in my XML, I find a stranger question.In my project, when I used this method at first, it didn't get the node that I wanted, so I created a new project to try the xpath, it could got the node now.(The same xpath and same XML file) Then I deleted some controls in my project which was about the method(not the new one), create new, then the method could find the node! I can't understand it, same xpath, same function,same value,why it happens?:confused::confused: Hope some one could tell me the reason and give me some suggestion!Thank you! The function that I used to search a node was like below:

Dim val As String = ""
Dim xmldoc As New XmlDocument()
Dim xpath As String
Try
xmldoc.Load(Application.StartupPath + "\Flange\Nozzle-Flange-Height.xml")
Dim xmlnode As XmlNode
If Not (Standard = "") Then
xpath = "/Nozzle-Flange-Height/Standard[@value='" + Standard + "']/Flange-type[@type='" + Type + "']/PN[@PN='" + PN + "']/Height[@DN='" + DN + "']"
xmlnode = xmldoc.SelectSingleNode(xpath)
If Not xmlnode Is Nothing Then
val = xmlnode.InnerText
Else
MsgBox("Could not find!")
End If
Else
val = ""
MsgBox("Input by yourself!")
End If
Catch ex As Exception
MsgBox(ex.Message)
End Try
Return val

Hello,Eaverae! Your suggestion is helpful for me to get more details about the method "SelectedSingleNode".Thank you! I have got my solution like below:

For Each node1 In list1
Dim val As String
val = node1.Attributes("PN").Value
If val = TextBox1.Text Then
Dim list2 As XmlNodeList = node1.SelectNodes("Height")
Dim node2 As XmlNode
For Each node2 In list2
Dim val2 As String
val2 = node2.Attributes("DN").Value
If val2 = TextBox2.Text Then
TextBox3.Text = node2.InnerText
End If
Next
End If
Next

What's more, I have change the XML element

<PN>

to

<PN PN="1.6">

:)

Hi,everyone!I have a XML, its structure was like below: <Height> <Standard>4721 <PN>1.6 <A DN="250">300</A> <A DN="350">400</A> <A DN="450">500</A> <A DN="550">600</A> </PN> <PN>2.5 <A DN="250">300</A> <A DN="350">400</A> <A DN="450">500</A> <A DN="550">600</A> </PN> </Standard> </Height> I want to get the selected node's text,for example,when PN = 1.6,DN = 250,the selected node's text was 300;PN=2.5,DN=350,the text should be 400.I tried use "for each node in childnodes",but it returned "1.6 300400500600".How could get the node I wanted? I think that should be first selected "PN",and then get each childnode in . But I don't know how to do this :sigh: PLZ give me some help,thx!

Hi,Gregory! Thanks for your suggestion, my problem has been solved!Thank you very much! :)

Hi,everyone! I want that a XML file be open when Form1 had been load, before my application was killed, this XML should stays open and different Form could call it . I tryed use "Public Shared xml as new XmlDocument () ", but in Form2's control event, when I input "xml.", it didn't show the list of properties and methods. It seemed like "Public Shared" disabled? What should I do？ Please give me some suggestions! Thank you very much!

Hi, Dave! Thanks for you rely. But I didn't get it……Could you take an example for me? Thanks a lot!

Hello,everyone! I have a question about operating XML file. I need to open a XML file which was a template when the application run, after I've input in TextboxA, the XML file could be saved as a new file in one folder. Then open the saved file again and other Textboxes' text will be written in its elements. (In text_changed event). My question is : I know how to open and save a XML file, but after I save it ,if I want to write new text in it , I need to load the file again? When I write all text in XML, it would need open--write--save and repeat much times ?I think it is so fool…… So,could you give me some suggestions or help? Maybe I should use thread? But there are so much controls :sigh: Thanks !

Hi,Luc! Thank you very much! I will search some articles to read :) By the way,could you give me some keywords for search ;P Thanks!

Hi,everyone! I have some difficuties in my project. There are a lot of controls such as textbox and combobox in project, my question is: if I just input some values (not all) into these controls and then close the application; when I open the application next time, I want these controls could shown with values that I inputed last time. What should I do to achieve it？Please give me some suggestions, thank you!

I've got it! Thank you, Dave!

Hi,everyone! I want to insert an image into an Excel sheet,I know I could insert an file on disk into Excel sheet using these codes: xlWorkSheet.Shapes.AddPicture("C:\xl_pic.JPG", _ Microsoft.Office.Core.MsoTriState.msoFalse, _ Microsoft.Office.Core.MsoTriState.msoCTrue, 50, 50, 300, 45) But I don't know how can I insert an image of Project Resources.resx File ,could anyone give me some suggestion or help ? Thanks a lot !