unknown dynamic dgv name

[moxid]

hello dear community, i have a problem which i am trying to solve since 1 week now.

i have 2 textboxes OUTSIDE of the tabcontrol. and a tabcontrol with 3 tabpages. on every tabpage there is a dgv. the dgv names are dgv0 dgv1 dgv2. so every tabpage has a dgv with the number of the tabpage index. i want to be able to use the 2 textboxes to change the headertext of the dgv. so if user selects tabpage0 and types in to the textboxes something the headertext of the dgv0 shoudl be changed. so i want to have 2 textboxes and i want to be able to edit all dgv headertexts. what i tryied is:

Dim selecteddgv As DataGridView = Nothing
        selecteddgv.Name = "dgv" + mytabcontrol.SelectedIndex.ToString
        selecteddgv.Columns(0).HeaderText = TextBox1.Text

[kebo]

create the name of the grid and use the Controls.Find method to get it...

Dim gridName As String = "dgv" & mytabcontrol.SelectedIndex.ToString
selecteddgv = myTabControl.Controls.Find(gridName,True)

If you can guarantee the grid is in the tabcontrol then that code will suffice. It will however throw an exception if the grid is not found.
kevin

[TnTinMN]

If every TabPage has one and only one DataGridView, there is no need to know its Name property to retrieve a reference to the DataGridView.

Dim dgv As DataGridView = TabControl1.SelectedTab.Controls.OfType(Of DataGridView).First
dgv.Columns(0).HeaderText = TextBox1.Text

[moxid]

TnTinMN your code works perfect but i have 2 dgv now on each tabpage so it doesnt work anymore or i dont know how to modify it.and kebo´s code doesnt work it is underlined :/

[kebo]

TnTinMN your code works perfect but i have 2 dgv now on each tabpage so it doesnt work anymore or i dont know how to modify it.and kebo´s code doesnt work it is underlined :/

What does that mean? How does it not work? What is underlined? Have you tried to fix it? Hover the mouse over it. Does a pop-up appear telling you what the problem is? If so what does it say?

[moxid]

dear kebo

 Dim gridName As String = "dgv" & tabcontrol1.SelectedIndex.ToString
 selecteddgv = tabcontrol1.Controls.Find(gridName, True)

"selecteddgv has not been declared" is the error . i hope you can help me with this errormessage.

[NeedSomeAnswers]

So what have you called the second dgv on each tab page?

[kebo]

dear kebo

 Dim gridName As String = "dgv" & tabcontrol1.SelectedIndex.ToString
 selecteddgv = tabcontrol1.Controls.Find(gridName, True)

"selecteddgv has not been declared" is the error . i hope you can help me with this errormessage.

When something is not declared, it means that no variable with that name has been created. Take a look at the code in your first post.... now look at the code I posted. Do you see a difference? Do you see the part that is missing?

[moxid]

yes i tried it also, but it didn´t work:

Dim selecteddgv As DataGridView
        Dim gridName As String = "dgv" & tabcontrol_speisen.SelectedIndex.ToString
        selecteddgv = tabcontrol_speisen.Controls.Find(gridName, True)

[moxid]

Dear NeedSomeAnswers, the 2. dgvs on each tabpage are called dgv_speisen and they have index of tabpage like dgv_speisen0 dgv_sepisen1 and so on.

[moxid]

Errormessage: Array of Type System.Windows.Forms.Control can not be converted to System.Windows.Forms.Datagridview

This is what i have so far:

Dim selecteddgv As DataGridView
Dim gridName As String = "dgv" & tabcontrol_speisen.SelectedIndex.ToString
selecteddgv = tabcontrol_speisen.Controls.Find(gridName, True) << ERROR HERE