无法将 TextBox 绑定到 BindingSource
我似乎无法绑定到文本框。这是我的来源：
public partial class formAirFreightLabels : Form
{
int pfDeclarationUID = -1;
BindingNavigator bindingNavigatorMain = new BindingNavigator();
BindingSource bindingSourceMain = new BindingSource();
public formAirFreightLabels(int pvDeclarationUID)
{
InitializeComponent();
pfDeclarationUID = pvDeclarationUID;
this.bindingNavigatorMain.BindingSource = this.bindingSourceMain;
this.bindingNavigatorMain.Dock = DockStyle.Bottom;
this.Controls.Add(this.bindingNavigatorMain);
this.Load += new EventHandler(formAirFreightLabels_Load);
}
void formAirFreightLabels_Load(object sender, EventArgs e)
{
SqlConnection cn = Program.GetSQLConnection();
if (cn != null)
{
SqlCommand cmd = new SqlCommand(String.Format("SELECT ShipperName, ShipperAddress, ConsigneeName, ConsigneeAddress FROM Declarations WHERE DeclarationUID={0}", pfDeclarationUID), cn);
SqlDataReader r = cmd.ExecuteReader(CommandBehavior.CloseConnection);
DataSet ds = new DataSet("Declarations");
ds.Load(r, LoadOption.OverwriteChanges, new string[] { "Declarations" });
bindingSourceMain.DataSource = ds;
textBoxShipperName.DataBindings.Add(new Binding("Text", bindingSourceMain, "ShipperName", true));
}
}
}
我不断收到如下运行时错误：
无法绑定到数据源上的属性或列 ShipperName。 参数名称：dataMember
I cannot seem to bind to a TextBox. Here is my source:
public partial class formAirFreightLabels : Form
{
int pfDeclarationUID = -1;
BindingNavigator bindingNavigatorMain = new BindingNavigator();
BindingSource bindingSourceMain = new BindingSource();
public formAirFreightLabels(int pvDeclarationUID)
{
InitializeComponent();
pfDeclarationUID = pvDeclarationUID;
this.bindingNavigatorMain.BindingSource = this.bindingSourceMain;
this.bindingNavigatorMain.Dock = DockStyle.Bottom;
this.Controls.Add(this.bindingNavigatorMain);
this.Load += new EventHandler(formAirFreightLabels_Load);
}
void formAirFreightLabels_Load(object sender, EventArgs e)
{
SqlConnection cn = Program.GetSQLConnection();
if (cn != null)
{
SqlCommand cmd = new SqlCommand(String.Format("SELECT ShipperName, ShipperAddress, ConsigneeName, ConsigneeAddress FROM Declarations WHERE DeclarationUID={0}", pfDeclarationUID), cn);
SqlDataReader r = cmd.ExecuteReader(CommandBehavior.CloseConnection);
DataSet ds = new DataSet("Declarations");
ds.Load(r, LoadOption.OverwriteChanges, new string[] { "Declarations" });
bindingSourceMain.DataSource = ds;
textBoxShipperName.DataBindings.Add(new Binding("Text", bindingSourceMain, "ShipperName", true));
}
}
}
I keep getting a run-time error as follows:
Cannot bind to the property or column ShipperName on the DataSource.
Parameter name: dataMember
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正如msdn所说，您需要添加TableName.ColumnName才能绑定控件。 Windows Form Binding，您可以尝试这样。
As msdn says, you need to add TableName.ColumnName in order bind the controls. Windows Form Binding , you may try like this.