尝试使用 DataGridViewComboBox 和 ValueMember 时出现 System.ArgumentException
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【中文标题】尝试使用 DataGridViewComboBox 和 ValueMember 时出现 System.ArgumentException【英文标题】:System.ArgumentException when trying to use DataGridViewComboBox and ValueMember 【发布时间】:2011-08-03 15:33:46 【问题描述】:ModelLinkControl modelLinkControl = new ModelLinkControl();
modelLinkControl.bindingSourceCModels.DataSource = cModels;
modelLinkControl.bindingSourceAModels.DataSource = aModels;
modelLinkControl.bindingSourceModelLinks.DataSource = modelLinks;
modelLinks 是一个 List<MyClass>
包含 3 个属性; ID、aID 和 cID。 aID 和 cID 用于对应 DataGridColum
中的 DataPropertyName。
aModels 和 cModels 是 List<AnotherClass>
包含 2 个属性; ID 和名称,我在对应的ComboBox
上用于ValueMember = "ID"
和DisplayMember = "Name"
。
在上面sn-p的最后一行我得到了;
System.ArgumentException occurred
Message=Field called ID does not exist.
Source=System.Windows.Forms
StackTrace:
at System.Windows.Forms.DataGridViewComboBoxCell.InitializeValueMemberPropertyDescriptor(String valueMember)
at System.Windows.Forms.DataGridViewComboBoxCell.OnDataGridViewChanged()
at System.Windows.Forms.DataGridViewRowCollection.AddInternal(DataGridViewRow dataGridViewRow)
at System.Windows.Forms.DataGridView.RefreshRows(Boolean scrollIntoView)
at System.Windows.Forms.DataGridView.RefreshColumnsAndRows()
at System.Windows.Forms.DataGridView.DataGridViewDataConnection.ProcessListChanged(ListChangedEventArgs e)
at System.Windows.Forms.DataGridView.DataGridViewDataConnection.currencyManager_ListChanged(Object sender, ListChangedEventArgs e)
at System.Windows.Forms.CurrencyManager.OnListChanged(ListChangedEventArgs e)
at System.Windows.Forms.CurrencyManager.List_ListChanged(Object sender, ListChangedEventArgs e)
at System.Windows.Forms.BindingSource.OnListChanged(ListChangedEventArgs e)
at System.Windows.Forms.BindingSource.ResetBindings(Boolean metadataChanged)
at System.Windows.Forms.BindingSource.SetList(IList list, Boolean metaDataChanged, Boolean applySortAndFilter)
at System.Windows.Forms.BindingSource.ResetList()
at System.Windows.Forms.BindingSource.set_DataSource(Object value)
InnerException:
我已经检查了所有字段、类和属性的拼写。我删除了设计器中的所有列并重新添加它们,仔细检查所有拼写。
modelLinks 的 ID 确实存在于 aModels 和 cModels 中。还尝试在所有 3 个列表中将 List<>
更改为 BindingList<>
。我只是不断收到同样的错误。
如果我删除 ValueMember = "ID"
,我确实会收到另一个错误(因为 AnotherClass
与 Guid
不匹配)。
我不知道接下来要尝试什么...
设计器生成:
//
// dataGridViewModels
//
this.dataGridViewModels.AllowUserToAddRows = false;
this.dataGridViewModels.AllowUserToDeleteRows = false;
this.dataGridViewModels.AutoGenerateColumns = false;
this.dataGridViewModels.CellBorderStyle = System.Windows.Forms.DataGridViewCellBorderStyle.None;
this.dataGridViewModels.ColumnHeadersBorderStyle = System.Windows.Forms.DataGridViewHeaderBorderStyle.None;
this.dataGridViewModels.ColumnHeadersHeightSizeMode = System.Windows.Forms.DataGridViewColumnHeadersHeightSizeMode.AutoSize;
this.dataGridViewModels.Columns.AddRange(new System.Windows.Forms.DataGridViewColumn[]
this.ColumnC,
this.ColumnA);
this.dataGridViewModels.DataSource = this.bindingSourceModelLinks;
this.dataGridViewModels.Dock = System.Windows.Forms.DockStyle.Fill;
this.dataGridViewModels.Location = new System.Drawing.Point(0, 0);
this.dataGridViewModels.Name = "dataGridViewModels";
this.dataGridViewModels.RowHeadersVisible = false;
this.dataGridViewModels.Size = new System.Drawing.Size(794, 445);
this.dataGridViewModels.TabIndex = 0;
//
// ColumnC
//
this.ColumnC.DataPropertyName = "cID";
this.ColumnC.DataSource = this.bindingSourceCModels;
this.ColumnC.HeaderText = "cModel";
this.ColumnC.Name = "ColumnC";
this.ColumnC.DisplayMember = "Name";
this.ColumnC.ValueMember = "ID";
//
// ColumnA
//
this.ColumnA.DataPropertyName = "aID";
this.ColumnA.DataSource = this.bindingSourceAModels;
this.ColumnA.HeaderText = "aModel";
this.ColumnA.Name = "ColumnA";
this.ColumnA.DisplayMember = "Name";
this.ColumnA.ValueMember = "ID";
【问题讨论】:
【参考方案1】:我刚刚这样做了:
Form1.cs
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
namespace TestDataGridView
public partial class Form1 : Form
public Form1()
InitializeComponent();
this.PopulateDataGrid();
private void PopulateDataGrid()
List<BindID> bindList = new List<BindID>();
List<ClassA> aList = new List<ClassA>();
List<ClassB> bList = new List<ClassB>();
for (int i = 0; i < 10; i++)
ClassA newClassA = new ClassA() ID = Guid.NewGuid(), Name = i.ToString() ;
ClassB newClassB = new ClassB() ID = Guid.NewGuid(), Name = i.ToString() ;
BindID newBindID = new BindID() ID = Guid.NewGuid(), AID = newClassA.ID, BID = newClassB.ID ;
bList.Add(newClassB);
aList.Add(newClassA);
bindList.Add(newBindID);
bindingSourceA.DataSource = aList;
ColumnA.ValueMember = "ID";
ColumnA.DisplayMember = "Name";
bindingSourceB.DataSource = bList;
ColumnB.ValueMember = "ID";
ColumnB.DisplayMember = "Name";
bindingSourceBindID.DataSource = bindList;
public class BindID
public Guid ID get; set;
public Guid AID get; set;
public Guid BID get; set;
public class ClassA
public Guid ID get; set;
public string Name get; set;
public class ClassB
public Guid ID get; set;
public string Name get; set;
Form1.Designer.cs
namespace TestDataGridView
partial class Form1
/// <summary>
/// Required designer variable.
/// </summary>
private System.ComponentModel.IContainer components = null;
/// <summary>
/// Clean up any resources being used.
/// </summary>
/// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
protected override void Dispose(bool disposing)
if (disposing && (components != null))
components.Dispose();
base.Dispose(disposing);
#region Windows Form Designer generated code
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
this.components = new System.ComponentModel.Container();
this.dataGridView1 = new System.Windows.Forms.DataGridView();
this.bindingSourceBindID = new System.Windows.Forms.BindingSource(this.components);
this.bindingSourceA = new System.Windows.Forms.BindingSource(this.components);
this.bindingSourceB = new System.Windows.Forms.BindingSource(this.components);
this.ColumnA = new System.Windows.Forms.DataGridViewComboBoxColumn();
this.ColumnB = new System.Windows.Forms.DataGridViewComboBoxColumn();
((System.ComponentModel.ISupportInitialize)(this.dataGridView1)).BeginInit();
((System.ComponentModel.ISupportInitialize)(this.bindingSourceBindID)).BeginInit();
((System.ComponentModel.ISupportInitialize)(this.bindingSourceA)).BeginInit();
((System.ComponentModel.ISupportInitialize)(this.bindingSourceB)).BeginInit();
this.SuspendLayout();
//
// dataGridView1
//
this.dataGridView1.AutoGenerateColumns = false;
this.dataGridView1.ColumnHeadersHeightSizeMode = System.Windows.Forms.DataGridViewColumnHeadersHeightSizeMode.AutoSize;
this.dataGridView1.Columns.AddRange(new System.Windows.Forms.DataGridViewColumn[]
this.ColumnA,
this.ColumnB);
this.dataGridView1.DataSource = this.bindingSourceBindID;
this.dataGridView1.Dock = System.Windows.Forms.DockStyle.Fill;
this.dataGridView1.Location = new System.Drawing.Point(0, 0);
this.dataGridView1.Name = "dataGridView1";
this.dataGridView1.Size = new System.Drawing.Size(709, 407);
this.dataGridView1.TabIndex = 0;
//
// ColumnA
//
this.ColumnA.DataPropertyName = "AID";
this.ColumnA.DataSource = this.bindingSourceA;
this.ColumnA.HeaderText = "ColumnA";
this.ColumnA.Name = "ColumnA";
//
// ColumnB
//
this.ColumnB.DataPropertyName = "BID";
this.ColumnB.DataSource = this.bindingSourceB;
this.ColumnB.HeaderText = "ColumnB";
this.ColumnB.Name = "ColumnB";
//
// Form1
//
this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
this.ClientSize = new System.Drawing.Size(709, 407);
this.Controls.Add(this.dataGridView1);
this.Name = "Form1";
this.Text = "Form1";
((System.ComponentModel.ISupportInitialize)(this.dataGridView1)).EndInit();
((System.ComponentModel.ISupportInitialize)(this.bindingSourceBindID)).EndInit();
((System.ComponentModel.ISupportInitialize)(this.bindingSourceA)).EndInit();
((System.ComponentModel.ISupportInitialize)(this.bindingSourceB)).EndInit();
this.ResumeLayout(false);
#endregion
private System.Windows.Forms.DataGridView dataGridView1;
private System.Windows.Forms.BindingSource bindingSourceBindID;
private System.Windows.Forms.BindingSource bindingSourceA;
private System.Windows.Forms.BindingSource bindingSourceB;
private System.Windows.Forms.DataGridViewComboBoxColumn ColumnA;
private System.Windows.Forms.DataGridViewComboBoxColumn ColumnB;
在一个新的独立项目中,它就像一个魅力。 至少这告诉我我做错了什么,并且它可能与我上面没有提供的项目中的其他东西有关。与我填充 DataGrid 的方式无关。
我会结束这个问题并继续寻找。
更新(解决方案):
[BrowsableAttribute(false)]
是邪恶的! :P
现在回想起来有点明显。我想在 PropertyGrid 中显示类时隐藏 ID,而不考虑它也会影响其他控件。真的需要进一步研究属性...
【讨论】:
我自己刚刚遇到了 BrowsableAttribute(false) 的事情。很好的收获。以上是关于尝试使用 DataGridViewComboBox 和 ValueMember 时出现 System.ArgumentException的主要内容,如果未能解决你的问题,请参考以下文章
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