问题重述:我想将 ListView 或 Combobox 里的列里的内容由已存在HASHTABLE里的VALUE来列出我的目的是为了:
在combobox的下拉列表里有多列,或是在ListView里能显示多列值如何实现?
在combobox的下拉列表里有多列,或是在ListView里能显示多列值如何实现?
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using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data.SqlClient;
using System.Data;namespace hastabvle
{
/// <summary>
/// Form1 的摘要说明。
/// </summary>
public class Form1 : System.Windows.Forms.Form
{
private System.Collections.Hashtable myHashtable;//定义hashtable
private System.Windows.Forms.ComboBox comboBox1;
private System.Windows.Forms.Button button1;
private System.Windows.Forms.ListView listView1;
/// <summary>
/// 必需的设计器变量。
/// </summary>
private System.ComponentModel.Container components = null; public Form1()
{ //
// Windows 窗体设计器支持所必需的
//
InitializeComponent(); //
// TODO: 在 InitializeComponent 调用后添加任何构造函数代码
//
} /// <summary>
/// 清理所有正在使用的资源。
/// </summary>
protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
} #region Windows 窗体设计器生成的代码
/// <summary>
/// 设计器支持所需的方法 - 不要使用代码编辑器修改
/// 此方法的内容。
/// </summary>
private void InitializeComponent()
{
this.comboBox1 = new System.Windows.Forms.ComboBox();
this.button1 = new System.Windows.Forms.Button();
this.listView1 = new System.Windows.Forms.ListView();
this.SuspendLayout();
//
// comboBox1
//
this.comboBox1.Location = new System.Drawing.Point(72, 200);
this.comboBox1.Name = "comboBox1";
this.comboBox1.Size = new System.Drawing.Size(120, 20);
this.comboBox1.TabIndex = 0;
this.comboBox1.Text = "comboBox1";
//
// button1
//
this.button1.Location = new System.Drawing.Point(96, 8);
this.button1.Name = "button1";
this.button1.TabIndex = 1;
this.button1.Text = "button1";
this.button1.Click += new System.EventHandler(this.button1_Click);
//
// listView1
//
this.listView1.Location = new System.Drawing.Point(32, 64);
this.listView1.Name = "listView1";
this.listView1.TabIndex = 2;
//
// Form1
//
this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
this.ClientSize = new System.Drawing.Size(292, 273);
this.Controls.Add(this.listView1);
this.Controls.Add(this.button1);
this.Controls.Add(this.comboBox1);
this.Name = "Form1";
this.Text = "Form1";
this.ResumeLayout(false); }
#endregion /// <summary>
/// 应用程序的主入口点。
/// </summary>
[STAThread]
static void Main()
{ Application.Run(new Form1());
} private void button1_Click(object sender, System.EventArgs e)
{
DataTable myTab = new DataTable("tabT");
myTab.Columns.Add("fld1", typeof(String));
myTab.Columns.Add("fld2", typeof(String));
DataRow tRow = myTab.NewRow();
tRow["fld1"] = "1";
tRow["fld2"] = "你好";
myTab.Rows.Add(tRow);
DataRow tRow1 = myTab.NewRow();
tRow1["fld1"] = "2";
tRow1["fld2"] = "她好";
myTab.Rows.Add(tRow1);
this.myHashtable = new Hashtable();
for (int i=0;i<myTab.Rows.Count;i++) //添加表
{
this.myHashtable.Add(myTab.Rows[i]["fld1"].ToString(),myTab.Rows[i]["fld2"].ToString());
}
int introws; //获得行数
introws = this.myHashtable.Count;
IDictionaryEnumerator myEnumerator = myHashtable.GetEnumerator();
while (myEnumerator.MoveNext())
{
this.comboBox1.Items.Add( myEnumerator.Value);
}
this.comboBox1.SelectedItem = 1;
// while(myEnumerator.MoveNext())
// {
// this.comboBox1.Items.Add(myEnumerator.Value);
// this.listView1.Show();
// }
//
}
}
}
下午有时间的话我给你做listview,,,
{
DataTable myTab = new DataTable("tabT");
myTab.Columns.Add("fld1", typeof(String));
myTab.Columns.Add("fld2", typeof(String));
DataRow tRow = myTab.NewRow();
tRow["fld1"] = "1";
tRow["fld2"] = "你好";
myTab.Rows.Add(tRow);
DataRow tRow1 = myTab.NewRow();
tRow1["fld1"] = "2";
tRow1["fld2"] = "她好";
myTab.Rows.Add(tRow1);
this.myHashtable = new Hashtable();
for (int i=0;i<myTab.Rows.Count;i++) //添加表
{
this.myHashtable.Add(myTab.Rows[i]["fld1"].ToString(),myTab.Rows[i]["fld2"].ToString());
}
int introws; //获得行数
introws = this.myHashtable.Count;
IDictionaryEnumerator myEnumerator = myHashtable.GetEnumerator();
while (myEnumerator.MoveNext())
{
this.comboBox1.Items.Add( myEnumerator.Value);
}
this.comboBox1.SelectedItem = 1;
}