为什么数据绑定在第二次时不起作用?

发布于 2024-07-16 07:51:09 字数 1143 浏览 13 评论 0原文

当我更改 BindingSource 的数据源时出现错误

“数据绑定无法找到适合所有绑定的行。适用于所有绑定的行”

        this.RemoveAllBindings(); // My work-around for the meantime

        bdsOrder.DataSource = _ds.Tables["orders"]; // errors here on second time around(first time is blank datatable, second time is when i open existing record, then it errors), dataset comes from Remoting
        bdsOrderDetail.DataSource = _ds.Tables["order_detail"];

        bdsPhoto.DataSource = _ds.Tables["order_photo"];
        bdnPhoto.BindingSource = bdsPhoto;

我的帮助器扩展方法解决了令人困惑的“数据绑定无法找到行...”错误。

namespace MycComponentExtension
{
    public static class Helper
    {
        public static void RemoveAllBindings(this Form form)
        {
            RemoveAllBindings((Control)form);
        }

        private static void RemoveAllBindings(this Control root)
        {
            foreach (Control c in root.Controls)
            {
                if (c.Controls.Count > 0) RemoveAllBindings(c);

                root.DataBindings.Clear();
            }
        }

“DataBinding 找不到行...”错误是什么意思,如果可能的话,我可以消除它的解决方法吗?

The error I got when I change the datasource of BindingSource

"databinding cannot find a row that is suitable for all bindings row that is suitable for all bindings"

        this.RemoveAllBindings(); // My work-around for the meantime

        bdsOrder.DataSource = _ds.Tables["orders"]; // errors here on second time around(first time is blank datatable, second time is when i open existing record, then it errors), dataset comes from Remoting
        bdsOrderDetail.DataSource = _ds.Tables["order_detail"];

        bdsPhoto.DataSource = _ds.Tables["order_photo"];
        bdnPhoto.BindingSource = bdsPhoto;

My Helper extension method work-around on perplexing "databinding cannot find a row..." error.

namespace MycComponentExtension
{
    public static class Helper
    {
        public static void RemoveAllBindings(this Form form)
        {
            RemoveAllBindings((Control)form);
        }

        private static void RemoveAllBindings(this Control root)
        {
            foreach (Control c in root.Controls)
            {
                if (c.Controls.Count > 0) RemoveAllBindings(c);

                root.DataBindings.Clear();
            }
        }

What's the meaning of "DataBinding cannot find a row..." error, if at all possible, can I eliminate my work-around on it?

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灼痛 2024-07-23 07:51:09

当不涉及 DataGridView 时,我看到了此错误,但我的数据源正在从另一个线程更新(顽皮!)并且我的绑定具有 FormattingEnabled=false。 改变这两个似乎可以解决问题。

I have seen this error when no DataGridView is involved, but my data source was being updated from another thread (naughty!) and my binding had FormattingEnabled=false. Changing both of these seemed to fix the problem.

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