在文本框中将Asp图表的值更改为值更改 [英] Changing the value of Asp chart as value change in a TextBox

问题描述

亲爱的先生，
我有一个包含三个数据点的asp图表，我要在更改文本框中的值时更改图表值，我已经搜索过它，但是没有找到任何有用的材料，请当我是新手.谢谢您

Dear Sir,
I have a asp chart which have three datapoints What I want is to change the chart values as I change value in textbox,I have searched about it But not found any useful material Please guide me as I am beginner.Thank you

推荐答案

您将必须通过C#代码来完成.在更改数据点的地方进行回发.由于只是图像，因此必须重新生成图像.

因此，有一个文本框可以自动回传，然后更改系列数据点中的值，图像将重新生成.

You''ll have to do it through the C# code. Cause a postback where you change the data points. Since it is just an image, the image has to be regenerated.

So, have a textbox that autopostsback and then change the value in the datapoints on your series and the image will be regenerated.

我已经完成了此代码，并且效果很好.谢谢我是初学者，我只是想了解我不是开发人员，因此如果您发现我自己有任何问题，请指导我.
谢谢


私有void Form1_Load(对象发送者，EventArgs e)
{

bmpDrawingArea =新的位图(宽度，高度);
graphDrawingArea = Graphics.FromImage(bmpDrawingArea);
}

私有无效Form1_Paint(对象发送者，System.Windows.Forms.PaintEventArgs e)
{
e.Graphics.DrawImage(bmpDrawingArea，0，0);
}

私有void btnGenerate_Click(对象发送者，EventArgs e)
{
int monday = int.Parse(this.txtMonday.Text);
int tuesday = int.Parse(this.txtTuesday.Text);
int周三= int.Parse(this.txtWednesday.Text);
int thursday = int.Parse(this.txtThursday.Text);
int星期五= int.Parse(this.txtFriday.Text);
graphDrawingArea.Clear(this.BackColor);
graphDrawingArea.DrawRectangle(新Pen(Color.Red)，this.txtMonday.Left + 5，280-星期一，40，星期一);
graphDrawingArea.DrawRectangle(新Pen(Color.Blue)，this.txtTuesday.Left + 5，280-周二，40，周二);
graphDrawingArea.DrawRectangle(new Pen(Color.Yellow)，this.txtWednesday.Left + 5，280-wednesday，40，wednesday);
graphDrawingArea.DrawRectangle(新Pen(颜色.绿色)，this.txt星期四.左+ 5，280-星期四，40，星期四);
graphDrawingArea.DrawRectangle(new Pen(Color.Maroon)，this.txtFriday.Left + 5，280-Friday，40，Friday);
graphDrawingArea.DrawRectangle(new Pen(Color.Black)，10，280，Width，1);
Invalidate();
}

私有void txtChangeValue_TextChanged(对象发送者，EventArgs e)
{
txtMonday.Text =(((TextBox)sender).Text;
}

私有void txtMonday_TextChanged(对象发送者，EventArgs e)
{
txtChangeValue.Text =(((TextBox)sender).Text;
}

I have done it like this code and its working well.thank you I am beginner and I just ask for understanding I am not Developer so if there is anything you find wrong out of me them please guide me.
Thanks


private void Form1_Load(object sender, EventArgs e)
{

bmpDrawingArea = new Bitmap(Width, Height);
graphDrawingArea = Graphics.FromImage(bmpDrawingArea);
}

private void Form1_Paint(object sender, System.Windows.Forms.PaintEventArgs e)
{
e.Graphics.DrawImage(bmpDrawingArea, 0, 0);
}

private void btnGenerate_Click(object sender, EventArgs e)
{
int monday = int.Parse(this.txtMonday.Text);
int tuesday = int.Parse(this.txtTuesday.Text) ;
int wednesday = int.Parse(this.txtWednesday.Text);
int thursday = int.Parse(this.txtThursday.Text);
int friday = int.Parse(this.txtFriday.Text);
graphDrawingArea.Clear(this.BackColor);
graphDrawingArea.DrawRectangle(new Pen(Color.Red), this.txtMonday.Left + 5, 280 - monday, 40, monday);
graphDrawingArea.DrawRectangle(new Pen(Color.Blue), this.txtTuesday.Left + 5, 280 - tuesday, 40, tuesday);
graphDrawingArea.DrawRectangle(new Pen(Color.Yellow), this.txtWednesday.Left + 5, 280 - wednesday, 40, wednesday);
graphDrawingArea.DrawRectangle(new Pen(Color.Green), this.txtThursday.Left + 5, 280 - thursday, 40, thursday);
graphDrawingArea.DrawRectangle(new Pen(Color.Maroon), this.txtFriday.Left + 5, 280 - friday, 40, friday);
graphDrawingArea.DrawRectangle(new Pen(Color.Black), 10, 280, Width, 1);
Invalidate();
}

private void txtChangeValue_TextChanged(object sender, EventArgs e)
{
txtMonday.Text = ((TextBox)sender).Text;
}

private void txtMonday_TextChanged(object sender, EventArgs e)
{
txtChangeValue.Text = ((TextBox)sender).Text;
}

这篇关于在文本框中将Asp图表的值更改为值更改的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！