将文本框作为参数从Xaml传递到Click按钮事件

问题描述 投票：0回答：2

我有几个文本框，其默认值为10，每个框旁边有两个按钮，这些按钮用于将文本框值增加1或单击减少一个。我知道我可以简单地为每个按钮创建一个单击事件处理程序，但我想这样做，而不是该方法可以通过从xaml传递它来找到指定的文本框。原谅我，如果这显然是怎么做的，但我很难过。

我已经进入绑定但无法弄清楚如何利用它来使其工作。

<Grid Background="DarkMagenta" Margin="0,0,0,-31">
    <StackPanel Orientation="Vertical" HorizontalAlignment="Center" Margin="0,10, 0, 20">
        <Label>Set Your Stats!</Label>
        <StackPanel Orientation="Vertical" HorizontalAlignment="Left">
            <Label>Strenght</Label>
            <StackPanel Orientation="Horizontal">
                <TextBox  Margin="10,10,2,10" MinHeight="10" MaxHeight="20" MinWidth="15" MaxWidth="20">10</TextBox>
                <StackPanel Orientation="Vertical" VerticalAlignment="Center">
                    <Button Click="Button_Click">+</Button>
                    <Button>-</Button>
                </StackPanel>

            </StackPanel>
            <Label>Dexterity</Label>
            <StackPanel Orientation="Horizontal">
                <TextBox  Margin="10,10,2,10" MinHeight="10" MaxHeight="20" MinWidth="15" MaxWidth="20">10</TextBox>
                <StackPanel Orientation="Vertical" VerticalAlignment="Center">
                    <Button>+</Button>
                    <Button>-</Button>
                </StackPanel>
            </StackPanel>

            <Label>Constitution</Label>
            <StackPanel Orientation="Horizontal">
                <TextBox  Margin="10,10,2,10" MinHeight="10" MaxHeight="20" MinWidth="15" MaxWidth="20">10</TextBox>
                <StackPanel Orientation="Vertical" VerticalAlignment="Center">
                    <Button>+</Button>
                    <Button>-</Button>
                </StackPanel>
            </StackPanel>

            <Label>Intelligence</Label>
            <StackPanel Orientation="Horizontal">
                <TextBox  Margin="10,10,2,10" MinHeight="10" MaxHeight="20" MinWidth="15" MaxWidth="20">10</TextBox>
                <StackPanel Orientation="Vertical" VerticalAlignment="Center">
                    <Button>+</Button>
                    <Button>-</Button>
                </StackPanel>
            </StackPanel>

            <Label>Wisdom</Label>
            <StackPanel Orientation="Horizontal">
                <TextBox  Margin="10,10,2,10" MinHeight="10" MaxHeight="20" MinWidth="15" MaxWidth="20">10</TextBox>
                <StackPanel Orientation="Vertical" VerticalAlignment="Center">
                    <Button>+</Button>
                    <Button>-</Button>
                </StackPanel>
            </StackPanel>

            <Label>Charisma</Label>
            <StackPanel Orientation="Horizontal">
                <TextBox  Margin="10,10,2,10" MinHeight="10" MaxHeight="20" MinWidth="15" MaxWidth="20">10</TextBox>
                <StackPanel Orientation="Vertical" VerticalAlignment="Center">
                    <Button>+</Button>
                    <Button>-</Button>
                </StackPanel>
            </StackPanel>
        </StackPanel>
        <Button HorizontalAlignment="Stretch" Margin="80,0,80,0" >Continue</Button>

    </StackPanel>

CS。文件方法

public partial class StatSelection : Page
{
    CharacterDetails charDetails = new CharacterDetails();
    public StatSelection(CharacterDetails addedDetails)
    {
        charDetails = addedDetails;
        InitializeComponent();
    }

    private void IncrementBy1(object sender, RoutedEventArgs e)
    {
        // code for incrementing the textbox by 1
    }
}

我希望这个方法有一个或两个方法，根据每次调用时传递给方法的文本框，找到正确的文本框。

c# wpf xaml button textbox
2个回答
0
投票

您可以尝试以下代码，找到与该按钮关联的文本框，并将该值递增1。

private void IncrementBy1(object sender, RoutedEventArgs e)
    {
        // code for incrementing the textbox by 1
        Button btn = sender as Button;

        var parent = VisualTreeHelper.GetParent(VisualTreeHelper.GetParent(btn));
        for (int i = 0; i < VisualTreeHelper.GetChildrenCount(parent); i++)
        {
            var textBox = VisualTreeHelper.GetChild(parent, i) as TextBox;
            if (textBox != null)
            {
                var value = int.Parse(textBox.Text);
                textBox.Text = (++value).ToString();
                break;
            }
        }

    }
0
投票

感谢user2818985和Nawed Nabi Zada的回答。使用您的建议我找到了一种方法，只对所有按钮使用一次点击事件！

  <Grid Background="DarkMagenta" Margin="0,0,0,-31">
    <StackPanel Orientation="Vertical" HorizontalAlignment="Center" Margin="0,10, 0, 20">
        <Label>Set Your Stats!</Label>
        <StackPanel Orientation="Vertical" HorizontalAlignment="Left">
            <Label>Strenght</Label>
            <StackPanel Orientation="Horizontal">
                <TextBox x:Name="StrTxtBx"  Margin="10,10,2,10" MinHeight="10" MaxHeight="20" MinWidth="15" MaxWidth="20">10</TextBox>
                <StackPanel Orientation="Vertical" VerticalAlignment="Center">
                    <Button x:Name="StrIncrease" Click="IncreaseDecrease">+</Button>
                    <Button x:Name="StrDecrease" Click="IncreaseDecrease">-</Button>
                </StackPanel>

            </StackPanel>
            <Label>Dexterity</Label>
            <StackPanel Orientation="Horizontal">
                <TextBox x:Name="DexTxtBx"  Margin="10,10,2,10" MinHeight="10" MaxHeight="20" MinWidth="15" MaxWidth="20">10</TextBox>
                <StackPanel Orientation="Vertical" VerticalAlignment="Center">
                    <Button x:Name="DexIncrease" Click="IncreaseDecrease">+</Button>
                    <Button x:Name="DexDecrease" Click="IncreaseDecrease">-</Button>
                </StackPanel>
            </StackPanel>

            <Label>Constitution</Label>
            <StackPanel Orientation="Horizontal">
                <TextBox x:Name="ConTxtBx"  Margin="10,10,2,10" MinHeight="10" MaxHeight="20" MinWidth="15" MaxWidth="20">10</TextBox>
                <StackPanel Orientation="Vertical" VerticalAlignment="Center">
                    <Button x:Name="ConIncrease" Click="IncreaseDecrease">+</Button>
                    <Button x:Name="ConDecrease" Click="IncreaseDecrease">-</Button>
                </StackPanel>
            </StackPanel>

            <Label>Intelligence</Label>
            <StackPanel Orientation="Horizontal">
                <TextBox x:Name="IntTxtBx"  Margin="10,10,2,10" MinHeight="10" MaxHeight="20" MinWidth="15" MaxWidth="20">10</TextBox>
                <StackPanel Orientation="Vertical" VerticalAlignment="Center">
                    <Button x:Name="IntIncrease" Click="IncreaseDecrease">+</Button>
                    <Button x:Name="IntDecrease" Click="IncreaseDecrease">-</Button>
                </StackPanel>
            </StackPanel>

            <Label>Wisdom</Label>
            <StackPanel Orientation="Horizontal">
                <TextBox x:Name="WisTxtBx" Margin="10,10,2,10" MinHeight="10" MaxHeight="20" MinWidth="15" MaxWidth="20">10</TextBox>
                <StackPanel Orientation="Vertical" VerticalAlignment="Center">
                    <Button x:Name="WisIncrease" Click="IncreaseDecrease">+</Button>
                    <Button x:Name="WisDecrease" Click="IncreaseDecrease">-</Button>
                </StackPanel>
            </StackPanel>

            <Label>Charisma</Label>
            <StackPanel Orientation="Horizontal">
                <TextBox x:Name="ChrTxtBx" Margin="10,10,2,10" MinHeight="10" MaxHeight="20" MinWidth="15" MaxWidth="20">10</TextBox>
                <StackPanel Orientation="Vertical" VerticalAlignment="Center">
                    <Button x:Name="ChrIncrease" Click="IncreaseDecrease">+</Button>
                    <Button x:Name="ChrDecrease" Click="IncreaseDecrease">-</Button>
                </StackPanel>
            </StackPanel>
        </StackPanel>
        <Button HorizontalAlignment="Stretch" Margin="80,0,80,0" >Continue</Button>

    </StackPanel>

</Grid>

Cs代码

  private void IncreaseDecrease(object sender, RoutedEventArgs e)
    {
        string btnName = ((Button)sender).Name;
        int TxtBxVal;
        switch(btnName)
        {
            case "StrIncrease":
                TxtBxVal = int.Parse(StrTxtBx.Text);
                StrTxtBx.Text = (++TxtBxVal).ToString();
                break;

            case "StrDecrease":
                TxtBxVal = int.Parse(StrTxtBx.Text);
                StrTxtBx.Text = (--TxtBxVal).ToString();
                break;

            case "DexIncrease":
                TxtBxVal = int.Parse(DexTxtBx.Text);
                DexTxtBx.Text = (++TxtBxVal).ToString();
                break;

            case "DexDecrease":
                TxtBxVal = int.Parse(DexTxtBx.Text);
                DexTxtBx.Text = (--TxtBxVal).ToString();
                break;

            case "ConIncrease":
                TxtBxVal = int.Parse(ConTxtBx.Text);
                ConTxtBx.Text = (++TxtBxVal).ToString();
                break;

            case "ConDecrease":
                TxtBxVal = int.Parse(ConTxtBx.Text);
                ConTxtBx.Text = (--TxtBxVal).ToString();
                break;

            case "IntIncrease":
                TxtBxVal = int.Parse(IntTxtBx.Text);
                IntTxtBx.Text = (++TxtBxVal).ToString();
                break;

            case "IntDecrease":
                TxtBxVal = int.Parse(IntTxtBx.Text);
                IntTxtBx.Text = (--TxtBxVal).ToString();
                break;

            case "WisIncrease":
                TxtBxVal = int.Parse(WisTxtBx.Text);
                WisTxtBx.Text = (++TxtBxVal).ToString();
                break;

            case "WisDecrease":
                TxtBxVal = int.Parse(WisTxtBx.Text);
                WisTxtBx.Text = (--TxtBxVal).ToString();
                break;

            case "ChrIncrease":
                TxtBxVal = int.Parse(ChrTxtBx.Text);
                ChrTxtBx.Text = (++TxtBxVal).ToString();
                break;

            case "ChrDecrease":
                TxtBxVal = int.Parse(ChrTxtBx.Text);
                ChrTxtBx.Text = (--TxtBxVal).ToString();
                break;
        }

    }

有了这个，盒子根据需要增加和减少。 可能会考虑将来削减它的方法，但现在我很高兴。再次感谢你们！

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