CODEWITHSUNDEEP
wpfgridrow
Mathias
Mathias

Reputation: 15391

How to programmatically access Control in WPF Grid by row and column index?

Once Controls have been added to a WPF Grid, is there a way to programmatically access them by row and/or column index? Something along the lines of:

 var myControl = (object)MyGrid.GetChild(int row, int column);

... where GetChild is the method I wish I had!

Upvotes: 47

Views: 63107

Answers (5)

Wes
Wes

Reputation: 1945

you could just give your grid column/row a name

<Grid x:Name="MainGridBackground" Grid.Column="0"/>

and access it programmatically by calling it and using "."

MainGridBackground.Background = canvasUCInstance.rectanglePreview.Fill;

Upvotes: -1

Sabi
Sabi

Reputation: 89

System::Windows::Controls::Grid^ myGrid = nullptr; System::Windows::Controls::UserControl^ pUserControl = nullptr;

myGrid = m_DlgOwnedObjAdmin->GrdProperties;
if (myGrid->Children->Count > 0)
{
    pUserControl = (System::Windows::Controls::UserControl^)myGrid->Children->default[0];
    if (pUserControl != nullptr)
    {
        if (bValue == true)
            pUserControl->Visibility = System::Windows::Visibility::Visible;
        else
            pUserControl->Visibility = System::Windows::Visibility::Collapsed;
    }
}

Upvotes: 0

Eric Olsson
Eric Olsson

Reputation: 4913

The Children property of the grid object will give you a collection of all the children of the Grid (from the Panel class).

As far as getting the coordinates in the grid, look at the static methods in the Grid class (GetRow() & GetColumn()).

Hope that sets you off in the right direction.

Upvotes: 1

itowlson
itowlson

Reputation: 74802

There isn't a built-in method for this, but you can easily do it by looking in the Children collection:

myGrid.Children
      .Cast<UIElement>()
      .First(e => Grid.GetRow(e) == row && Grid.GetColumn(e) == column);

Upvotes: 78

Carlo
Carlo

Reputation: 25959

This answer will help you

int rowIndex = Grid.GetRow(myButton);

RowDefinition rowDef = myGrid.RowDefinitions[rowIndex];

Upvotes: 13

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