Xamarin 表单集选择器 SelectedItem [英] Xamarin forms set Picker SelectedItem

问题描述

我正在使用 xamarin 表单.我正在将 Picker 用于 DropDownList.

I am working with a xamarin Forms. I am using Picker for DropDownList.

如何将 selectedItem 设置为 Picker?

How can I set selectedItem to Picker?

我的代码

<Picker x:Name="VendorName" Title="Select" ItemDisplayBinding="{Binding VendorName}" SelectedItem="{Binding VendorName}" Style="{StaticResource PickerStyle}"></Picker>

和服务器端代码是

Device.BeginInvokeOnMainThread(() =>
{
VendorName.ItemsSource = VendorList;
});

var currentVendor = new List<Vendor>();
currentVendor.Add(new Vendor { VendorID = "111", VendorName = "aaaa" });

VendorName.SelectedItem = currentVendor;

推荐答案

这可能不是最有效的，但您可以循环查找索引并以此方式设置.

This may not be the most efficient but you could loop to find the index and set that way.

for (int x = 0; x <  VendorList.Count; x++)
        {
            if (VendorList[x].VendorName == currentVendor .VendorName )
            {
                VendorName.SelectedIndex = x;
            }
        }

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