【文件共享管理源码】【秒作图素材源码】【充值返佣金源码】datagrid 源码-皮皮网

【文件共享管理源码】【秒作图素材源码】【充值返佣金源码】datagrid 源码

2024-12-29 06:14:44 来源：csdn彩票源码分类：时尚

1.datagrid Դ?源码?
2.vb.net如何实现打印DataGridView1里的内容，求源码
3.C#用datagriview控件增加删除行数据，源码并且更新到xml中，源码文件共享管理源码求代码（急）如图

datagrid 源码

datagrid Դ?源码?

string a = this.GridView2.DataKeys[e.RowIndex][0].ToString();

string str = ((TextBox)this.GridView2.Rows[e.RowIndex].Cells[0].Controls[0]).Text;

string ds = ((TextBox)this.GridView2.Rows[e.RowIndex].Cells[1].Controls[0]).Text;

SqlConnection con = new SqlConnection("Data Source=.;Initial Catalog=Test;Integrated Security=True");

con.Open();

SqlCommand cmd=new SqlCommand("update T1 set T_title='"+str+"' ,T_date='"+ds+"' where T_id='"+a+"'",con);

if (Convert.ToInt(cmd.ExecuteNonQuery()) > 0)

{

Response.Write("更新成功");

}

else

Response.Write("更新失败");

bind();

}

vb.net如何实现打印DataGridView1里的内容，求源码

使用 PrintDocument 控件的源码秒作图素材源码 Print() 方法可以打印指定对象中的内容，参考代码如下：

Private Sub Button1_Click(ByVal sender As System.Object,源码充值返佣金源码 ByVal e As System.EventArgs) Handles Button1.Click

PrintDocument1.Print()

End Sub

Private Sub PrintDocument1_PrintPage(ByVal sender As System.Object, ByVal e As System.Drawing.Printing.PrintPageEventArgs) Handles PrintDocument1.PrintPage

Dim bm As New Bitmap(Me.DataGridView1.Width, Me.DataGridView1.Height)

DataGridView1.DrawToBitmap(bm, New Rectangle(0, 0, Me.DataGridView1.Width, Me.DataGridView1.Height))

e.Graphics.DrawImage(bm, 0, 0)

End Sub

C#用datagriview控件增加删除行数据，并且更新到xml中，源码求代码（急）如图

完全按你的源码要求写的，供参考：

前提是源码XML文件已创建好，在窗体里选择该XML文件，源码再行操作：

窗体：

//选择XML按钮

private void btnXML_Click(object sender,源码 EventArgs e)

{

DataTable dt = new DataTable();

OpenFileDialog xmlFile = new OpenFileDialog();

xmlFile.Filter = "*.xml|";

xmlFile.Title = "请选择xml文件";

if (xmlFile.ShowDialog() == DialogResult.OK)

{

this.txtPath.Text = xmlFile.FileName;//在textBox1控件中显示选择的路径

dt=GetXML(this.txtPath.Text);

}

if(!dt.Equals(null)&&dt.Rows.Count>0)

LoadData(dt, dgvXML);//加载到窗体中

}

//保存按钮

private void button1_Click(object sender, EventArgs e)

{

int n = SaveDgv();

if (n > 0)

{

MessageBox.Show("保存成功！");

DataTable dt = new DataTable();

dt = GetXML(this.txtPath.Text);

LoadData(dt,源码 dgvXML);//刷新加载

}

else

{

MessageBox.Show("保存失败！");

DataTable dt = new DataTable();

dt = GetXML(this.txtPath.Text);

LoadData(dt,源码swing电影系统源码 dgvXML);//刷新加载

}

//删除按钮

private void btnDelete_Click(object sender, EventArgs e)

{

int n = 0;//判断是否删除

for (int i = 0; i < dgvXML.SelectedRows.Count; i++)

{

string id = dgvXML.SelectedRows[i].Cells[0].Value.ToString();

XmlDocument doc = new XmlDocument();

doc.Load(this.txtPath.Text);

XmlNodeList nod = doc.DocumentElement.ChildNodes;

XmlNode root = doc.DocumentElement;

foreach (XmlNode peo in nod)

{

if (XmlNode.Equals(peo.SelectSingleNode("ID").InnerText, id))

{

root.RemoveChild(peo);//从根节点删除该ID的PERSON

doc.Save(this.txtPath.Text);

n++;

}

if (n > 0)

{

DataTable dt = new DataTable();

dt = GetXML(this.txtPath.Text);

LoadData(dt, dgvXML);//刷新加载

MessageBox.Show("删除成功！");

}

else

{

MessageBox.Show("删除失败！源码");

}

// DataGridView中加载数据

private void LoadData(DataTable dt,源码澳门数据网源码 DataGridView dgv)

{

dgv.Rows.Clear();//datagridview清空数据

if (dt != null && dt.Rows.Count > 0)

{

dgv.Rows.Add(dt.Rows.Count);

for (int i = 0; i < dt.Rows.Count; i++)

{

for (int k = 0; k < dt.Columns.Count; k++)

{

dgv.Rows[i].Cells[k].Value = dt.Rows[i][k].ToString();//赋值

}

//datagridview添加行号

private void dataGridView1_RowStateChanged(object sender, DataGridViewRowStateChangedEventArgs e)

{

e.Row.HeaderCell.Value = (e.Row.Index + 1).ToString();

}

//解析XML生成DATATABLE

private List<string> IDList = new List<string>();//用来记录已有的ID，以在修改时判断是否新增

private DataTable GetXML(string path)

{

DataTable dt = new DataTable();

dt.Columns.Add("ID");

dt.Columns.Add("NAME");

dt.Columns.Add("SEX");

dt.Columns.Add("PHONE");

XmlDocument doc = new XmlDocument();

doc.Load(path);

XmlNodeList nod = doc.DocumentElement.ChildNodes;

foreach (XmlNode peo in nod)

{

XmlNodeList pe = peo.ChildNodes;

DataRow row = dt.NewRow();

foreach (XmlNode p in pe)

{

if (p.Name == "ID")

{

row["ID"] = p.InnerText.ToString();

IDList.Add(p.InnerText.ToString());//添加ID记录，以在修改时判断是否新增

}

if (p.Name == "NAME")

{

row["NAME"] = p.InnerText.ToString();

}

if (p.Name == "SEX")

{

row["SEX"] = p.InnerText.ToString();

}

if (p.Name == "PHONE")

{

row["PHONE"] = p.InnerText.ToString();

}

dt.Rows.Add(row);

}

return dt;

}

//修改dgv数据后保存到XML文件

private int SaveDgv()

{

int n = 0;

for (int i = 0; i < dgvXML.Rows.Count-1; i++)

{

XmlDocument doc = new XmlDocument();

doc.Load(this.txtPath.Text);

XmlNodeList nod = doc.DocumentElement.ChildNodes;

string id = dgvXML.Rows[i].Cells[0].Value.ToString();

if (IDList.Contains(id)) //如果是已有的ID，则修改

{

foreach (XmlNode peo in nod)

{

if (XmlNode.Equals(peo.SelectSingleNode("ID").InnerText, id))

{

peo.SelectSingleNode("NAME").InnerText = dgvXML.Rows[i].Cells[1].Value.ToString();//赋值姓名

peo.SelectSingleNode("SEX").InnerText = dgvXML.Rows[i].Cells[2].Value.ToString();//赋值性别

peo.SelectSingleNode("PHONE").InnerText = dgvXML.Rows[i].Cells[3].Value.ToString();//赋值电话

doc.Save(this.txtPath.Text);

n++;

break;//当找到该ID记录并修改后，跳出循环

}

else //否则为新增

{

XmlNode root = doc.DocumentElement;

XmlElement PERSON = doc.CreateElement("PERSON");

XmlElement ID = doc.CreateElement("ID");

ID.InnerText = id;//赋值id

XmlElement NAME = doc.CreateElement("NAME");

NAME.InnerText = dgvXML.Rows[i].Cells[1].Value.ToString();//赋值姓名

XmlElement SEX = doc.CreateElement("SEX");

SEX.InnerText = dgvXML.Rows[i].Cells[2].Value.ToString();//赋值性别

XmlElement PHONE = doc.CreateElement("PHONE");

PHONE.InnerText = dgvXML.Rows[i].Cells[3].Value.ToString();//赋值电话

PERSON.AppendChild(ID);

PERSON.AppendChild(NAME);

PERSON.AppendChild(SEX);

PERSON.AppendChild(PHONE);

root.AppendChild(PERSON);

doc.Save(this.txtPath.Text);//保存

n++;

}

return n;

}

XML文件：

<?xml version="1.0" standalone="yes"?>

<List>

</PERSON>

</PERSON>

</PERSON>

</PERSON>

</List>

【文件共享管理源码】【秒作图素材源码】【充值返佣金源码】datagrid 源码

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